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SPA-3000 Review/Guide: Affordable Home PBX

Kerbo writes "Seems every few days there is another news item about Asterisk PBX or Asterisk@Home, the open-source PBX system and associated installer package. You may have even been wondering what equipment you need to get started. The Geek Gazette has posted a review of the Sipura SPA-3000 ATA/Gateway with a complete setup guide on configuring it to work with Asterisk. This makes a very cost-effective way to get started by using your existing phone line as a trunk into the PBX."

160 comments

  1. I remember my first affordable PBX by Anonymous Coward · · Score: 4, Funny

    It consisted of two tin cans and a string, and it worked mighty fine!

    1. Re:I remember my first affordable PBX by Anonymous Coward · · Score: 0

      Oh, so you use TCAST as your carrier, too? (Two Cans And a STring)

  2. ignorant question by rootofevil · · Score: 1

    how is a single phone line going to be useful for running a PBX?

    --
    turn up the jukebox and tell me a lie
    1. Re:ignorant question by dotslasher_sri · · Score: 4, Funny

      Sir,

      Hand over your geek card. We do things not because we have to, but because we can. ;)

    2. Re:ignorant question by grasshoppa · · Score: 4, Informative

      There are a few ways this could be helpful:

      1) Voicemail. Someone leaves a message, the pbx emails it to you.

      2) VoIP usability. Once the line makes it into my pbx, regardless of how, it's mine. I go on vacation? Cool, I just pack up my phone and take it with me.

      Those are just two off the top of my head, I'm sure I could think of more were I to really focus on it.

      --
      Mod me down with all of your hatred and your journey towards the dark side will be complete!
    3. Re:ignorant question by rootofevil · · Score: 1

      it was a serious question, ive never dealt with telco-type stuff before and the features that asterisk and the other offer are very interesting, but i dont see the point of using with only a single phone line over VOIP (which is what everyone seems to have their knickers in a twist over).

      --
      turn up the jukebox and tell me a lie
    4. Re:ignorant question by Cynshard · · Score: 2, Informative
    5. Re:ignorant question by rootofevil · · Score: 1

      that, sir, is hot shit. thanks.

      --
      turn up the jukebox and tell me a lie
    6. Re:ignorant question by Bimo_Dude · · Score: 2, Interesting
      IMHO, the most interesting use for home is the ability to use CID. Using CID, you can create "blacklists" for those annoying sales calls, as well as caller-id-blocked calls and unknown callers. At the same time, you can configure it to listen for en extension being dialed, which can be used to give you (or anybody you give the "secret extension to") the ability to bypass the "bleep-bleep-bleep" message and actually ring the phone.

      Another interesting use is integrating it with X10 or other home automation tools, so you can remotely control your house without having to have internet access wherever you are.

      Also, wouldn't it be cool to have your Linux box read your email (or /.) to you over the phone on those lonely nights?

      --
      "Teleporting Rodents with D-Cell Battery Displacement" theory -- IgnoramusMaximus (692000)
    7. Re:ignorant question by suwain_2 · · Score: 1

      I've thought for a while of pulling in a Vonage line, but keeping my home POTS line too.

      What I'm interested in doing with Asterisk isn't necessarily having 2852085092209384 phone lines coming into my house, but doing extension-to-extension calling at home. It's a pain to have to walk downstairs to talk to someone.

      --
      ________________________________________________
      suwain_2 :: quality slashdot p
    8. Re:ignorant question by pinkocommie · · Score: 2, Interesting

      Buy a VOIP Line (packet8 etc), take it to a country that doesnt offer VOIP lines (india? pakistan? uae?), plug it into the internet, plug the sipura up with a local line and voila you can call anyone in that country as a local call?

    9. Re:ignorant question by Nos. · · Score: 2, Insightful

      Now imagine a setup like this for a salesperson. There phone rings... as normal (PBX, Asterisk, whatever). Now, as the phone rings, an app on their computer takes the Caller ID and runs it through their database of existing customers. As our salesperson answers the phone, they can see every piece of information about that client. If they're not in the database, it could do a 411 lookup or something to pull any information it could. I thought about setting something like this up, but have just never got around to it. Wouldn't be that hard though.

    10. Re:ignorant question by Proc6 · · Score: 4, Funny
      "It's a pain to have to walk downstairs to talk to someone."

      Agreed my fellow obese American!

      --

      I'm Rick James with mod points biatch!

    11. Re:ignorant question by Anonymous Coward · · Score: 1, Interesting

      If you live with other people you could use extensions to direct each call to the right person, and set up a separate voicemail box for each one. You could also set up a single phone number for your business even if it's just 3 telecommuters, which might make it look more professional.

      Plus, telemarketers would never ring a phone.

    12. Re:ignorant question by liamo · · Score: 5, Interesting
      Well, my setup at home is probably typical of the home Asterisk user.

      I have a POTS line and I have a VOIP account, both of which terminate on my Asterisk box.

      In addition to my normal house phone I have a GrandStream SIP phone. Either phone can make or answer calls and each phone can call each other. (Handy for calling downstairs from the office to order another beer!)

      I get voicemail, call hold, call parking, music on hold.

      Although I haven't set it up yet, I can have it answer my fax calls, convert the fax to a PDF and email it to me.

      I get the ability to route my calls depending on where I'm calling. For example, calls to cell-phones, 1800 numbers and emergency calls go out my POTS line. All other calls go out on my VOIP account. As most of my family live in the US (I live in Ireland) I make a huge saving on the cost of those calls.

      By way of a proof-of-concept for my employer (in the financial services industry) I even wrote a Telephone Banking application in Perl for Asterisk.

      Although I make savings on my calls and get added functionality, the main reason I use Asterisk is for control over my telecoms. Apart from that, it's cool!

    13. Re:ignorant question by halfelven · · Score: 1

      Well, you only have one analog line, but you have a lot of VoIP "lines" over your broadband connection.

      A PBX @ home makes a lot of sense in conjunction with a DSL/cable link. Install maybe one or two analog phones on the PBX, but then deploy as many VoIP phones as you want - and not necessarily only in your house! ;-) Then hook up to VoIP providers, etc. Its flexibility is virtually unlimited.

    14. Re:ignorant question by walt-sjc · · Score: 2, Interesting

      In addition to the features pointed out by other posters, telemarketer avoidance is a HUGE benefit. IMO, the donotcall list is a failure due to all the exceptions (think back to the pre-election timeframe...) I've been running * for over a year now, and have quite a nice dial-plan / feature list. I have it integrated with an intercom, mp3 server, phones in various places (garage, basement, etc.), speed-dials for family, callerID rewriting (put a REAL name on the number), time-of-day inbound restrictions (no more wrong-number calls in the middle of the night), time of day restrictions based on called ID, etc.

      I also get my voicemails via email, can access everything remotely via VoIP or normal phone, can use VoIP from the hotel on my laptop to call my wife, call friends without using long-distance, transfer my home-office phone to wherever I am, etc.

      It makes the old "stupid annoying phone" not so annoying and a lot more useful.

    15. Re:ignorant question by Anonymous Coward · · Score: 0

      There are no ignorant questions. Or maybe I just think that because I had the same question.

      Signate has an excellent book on Astrix.

    16. Re:ignorant question by Anonymous Coward · · Score: 0

      There are no ignorant questions. Or maybe I just think that because I had the same question.

      Signate has an excellent book on Astrix.

    17. Re:ignorant question by walt-sjc · · Score: 4, Interesting

      Well, that's funny, but the ability to call another extension is Very nice some times. I have a woodshop out back (loud ringer with a visual indicator,) and sometimes I answer a call that's for my wife. Rather than go outside in the snow, and yell throughout the house trying to find her, I just park the call and page her (All Call). If she doesn't answer I transfer the call to her personal voicemail. No more forgeting to give her the message and have her get all mad or anything.

    18. Re:ignorant question by mustafap · · Score: 1

      Hi,

      I'd be interested to know what hardware you are using, and how it's configured. Would you have time to chat about it by email? mikehibbett [@] oceanfree.net

      Mike.

      --
      Open Source Drum Kit, LPLC deve board - mjhdesigns.com
    19. Re:ignorant question by JasontheMason · · Score: 2, Funny

      Dude, why don't you just slide down the bannister? It's a heck of a lot faster, and more impressive, too.

      --
      "Ad infinitem et ultra!" - Buzz Lightyear
    20. Re:ignorant question by raju1kabir · · Score: 1

      Many call centers have done this for years. They are subtle about it these days, though, because they found that it really freaked their customers out.

      --
      "Patriotism is your conviction that this country is superior to all other countries because you were born in it." -- GBS
    21. Re:ignorant question by epiphani · · Score: 1

      Another ignorant question - would it be possible to tie my Skype account to this? I've recently decided that I like Skype, figured it might be handy to tie the two together.

      --
      .
    22. Re:ignorant question by liamo · · Score: 1
      I don't believe so. I've seen a number of questions about this but no solution as yet.

      Over at voip-info.org they have a bounty on Skype functionality for Asterisk.

    23. Re:ignorant question by Anonymous Coward · · Score: 0

      why am i not that impressed...

    24. Re:ignorant question by batkiwi · · Score: 1

      Who do you use for voip that you can terminate on your asterisk box? If you see this, reply or email me please, I can't get vonage or packet8 to work...

    25. Re:ignorant question by mikefe · · Score: 1

      While the bounty will make some developer over a thousand dollars, this is what happens when you work with closed technologies. You loose flexability and freedom as seen in this instance.

      --
      There: Something at a specific location.
      Their: Owned by someone.
      Please make sure your english compiles.
    26. Re:ignorant question by JabberWokky · · Score: 1
      Yes[1]. You'll need a hardware Skype phone (there are several available now), and a POTS card. You basically plug the POTS card into the computer, and plug the computer into the Skype extension jack (most Skype phones seem to have them).

      The way the nice ones work[1], you use # to flip between a telco dialtone and a Skype "dialtone".

      [1] Disclaimer - I know one person in real life who has done this and he was vaguely connected to a Skype phone manufacturer. While I plan to do something similar, I have not done it myself (because I'm moving cross country in a month and setting up a new home office at the other end).

      --
      Evan

      --
      "$30 for the One True Ring. $10 each additional ring!" -- JRR "Bob" Tolkien
    27. Re:ignorant question by JabberWokky · · Score: 1
      Or when the woodshop is a fairly good distance from the house; some people's homes are more than a couple acres.

      --
      Evan "Of course, there's a single pair intercom already wired..."

      --
      "$30 for the One True Ring. $10 each additional ring!" -- JRR "Bob" Tolkien
  3. But why? by Kenja · · Score: 4, Funny

    Given that most geeks get few enough phone calls to render an answering machine pointless, why do they need a PBX system?

    --

    "Have you ever thought about just turning off the TV, sitting down with your kids, and hitting them?"
    1. Re:But why? by oldwolf13 · · Score: 2

      I suppose it's the same reason I'm setting up network bootable terminals in my house (combination LTSP and win2003 TSC), which I really don't need...

      because we can?

      --
      If I can't smoke and swear I'm fucked.
    2. Re:But why? by MarkGriz · · Score: 4, Funny

      "I suppose it's the same reason I'm setting up network bootable terminals in my house"

      To impress chicks, of course.

      --
      Beauty is in the eye of the beerholder.
    3. Re:But why? by Kenja · · Score: 1
      "To impress chicks, of course."

      I knew a guy who had an old WANG mainframe. And he realy did try to use the line "want to come back to my place and check out my big WANG" a few times.

      --

      "Have you ever thought about just turning off the TV, sitting down with your kids, and hitting them?"
    4. Re:But why? by physicsphairy · · Score: 1
      Given that most geeks get few enough phone calls to render an answering machine pointless, why do they need a PBX system?

      An answering machine allows me to ignore people I don't absolutely have to talk to.

      A PBX system allows me avoid interaction altogether by setting up an interactive system (i.e., "press one now").

      Combine this with internet groceries and shopping, an income based solely on doing well in everquest, and many of us will never have to leave our mother's basements. Ever. BUWAHAHAHAAAAAAAAAAAAAAA!!!

    5. Re:But why? by Anonymous Coward · · Score: 0

      Anyone who asks a question like this has visited the wrong web site and is obviously not one of us ....

    6. Re:But why? by Anonymous Coward · · Score: 1, Funny

      To impress chicks, of course.

      You breed poultry?

    7. Re:But why? by aonaran · · Score: 1

      Given that most geeks get few enough phone calls to render an answering machine pointless, why do they need a PBX system?

      How about to get FEWER calls?

      My Asterisk system is set up so that incoming calls if coming from my cell phone go directly to voicemail main menu so I can pick up my messages on the road more easily. Incoming calls from friends whom I am able to identify by Caller ID ring the house phone as usual. Incoming calls that are not from a known Caller ID go to a menu (you know... press 1 for blah, 2 for blah blah...) that seems to have been just enough to turn the telemarketers away and still let legit calls in. (without any noticable change if CallerID catches them)

      I also have a VoIP extension for my fiancee who lives in another town at the moment, so calls to/from her get routed over the internet and she can make calls out to local numbers here for free.

    8. Re:But why? by vax · · Score: 1

      those platters were huge, I remember my uncle having one laying around his garage. The reader for the thing was broken and naturally being an insanely obsolete piece of hardware he was never able to find a way to fix it, and well now a days there is no point in it other than to say you did it and having bragging rights for getting netbsd running on it. lol. mail server that eats more electricity than your washing machine anyone?

      On the down side, not only would your electricity bill go up, but chicks would be ever so dissappointed to find out that your wang was indeed big but still inherently useless as far as thier satisfaction is concerned. look on the bright side, there are always the ones that marry you for your money!

  4. Tax Deduction by TrIp0d · · Score: 2, Funny

    Will the secratary it takes to operate it be a tax deduction?

    1. Re:Tax Deduction by Burstgoof · · Score: 1

      No. But, the Receptionist you replaced with it will now be your 'PBX Service Person'.

  5. Asterisk. by Anonymous Coward · · Score: 2, Informative

    Good to see that asterisk is in the news more and more. It is great a great pbx with so many ways to configure.

    1. Re:Asterisk. by Anonymous Coward · · Score: 0

      they have a big name to live up to. Asterisk * the wild card, a universal rexgrep match... so much to live up to in the name, for a lil old pbx...

  6. i wonder.... by Pandora's+Vox · · Score: 4, Interesting

    how long this will last now that Cisco bought Sipura.... cf: http://newsroom.cisco.com/dlls/2005/corp_042605.ht ml?CMP=ILC-001

    1. Re:i wonder.... by grasshoppa · · Score: 3, Informative

      Knee jerk reaction: Cisco's phones work just fine with asterisk.

      --
      Mod me down with all of your hatred and your journey towards the dark side will be complete!
    2. Re:i wonder.... by Pandora's+Vox · · Score: 1

      nothing to do with this. this is an analog adapter. for asterisk. which competes with cisco's products such as their... analog adapters. and Call Manager, for that matter.

    3. Re:i wonder.... by Anonymous Coward · · Score: 0

      how long this will last now that Cisco bought Sipura

      Probably longer. Product development and gaining market share in risky areas like VoIP is capital intensive. It may not pay for itself for a while. Cisco brings the capital.

    4. Re:i wonder.... by bani · · Score: 2, Informative

      Cisco may be buying up sipura just so they can shut it down. Sipura's products compete with Cisco's own products.

      Sorta like microsoft buying out companies just to eliminate competition.

    5. Re:i wonder.... by ldspartan · · Score: 1

      "For asterisk"? By the same logic, you could say a Cisco 7960, because SIP firmware is available, is "for asterisk". The linksys PAP2 (Vonage-bundled ATA) is a SPA-2000 repackaged. Sipura isn't in the same market as Cisco in this case; Sipura makes cut-rate stuff, Cisco makes large-deployment stuff. It's a good purchase for the linksys group, and I'd be amazed if the ATA products (all 3 of them!) weren't assimilated.

      What happens to Sipura's new IP phone is another question entirely, though.

      --
      lds

    6. Re:i wonder.... by nmos · · Score: 1

      Arrrg. Cisco makes great equipment but dealing with them can be a real pain, at least for a small fry like me. BTW wasn't Sipura started by ex-Cisco employees?

  7. Price by stoolpigeon · · Score: 5, Informative

    I couldn't find the price in the article-- may have missed it. Went to the Sipura sight and they don't sell directly to end users. They do have links to sites that do sell to end-users and I found it for $99

    --
    It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
    1. Re:Price by Ziviyr · · Score: 1

      The makers sell for $150.

      --

      Someone set us up the bomb, so shine we are!
    2. Re:Price by Anonymous Coward · · Score: 0

      I couldn't find the price in the article-- may have missed it.

      Second page (say 1 of 6): Analog Terminal Adapter Street Price: $59.95

      It's a web site, not sight.

  8. The Cost Savings Here Could be Major by ultimabaka · · Score: 3, Insightful

    Assuming the software works as well as private PBX systems, (which it doesn't yet seem to, based on the websites linked), it could save major dollars to larger corporations. My own company (Arch Insurance) easily spent thousands on our hardware PBX system, and we're not that big a company. I can imagine what, say, an AIG might spend every year just on this. Definitely worth exploring further.

    1. Re:The Cost Savings Here Could be Major by Anonymous Coward · · Score: 0

      You can already setup Asterix PBX's for pennies on the dollar compared to commercial PBX's.

      Effectively, all you need are POTS cards that Asterix supports, and a bit of knowledge and patience to replace a PBX that cost hundreds of thousands of dollars with off the shelf stuff that's in the sub $10,000 dollar range.... And it'll probably work better too (with more features at least).

      This device is to be used in a home/small office setting (for using the great and allmighty powers of Asterix for taking voicemail or acting as a POTS gateway to VOIP for instance). You're not going to replace a multi-thousand dollar PBX with this. This would be good for at most two people (assuming a VOIP and POTS connection).

      Arrowed!!!!!1

    2. Re:The Cost Savings Here Could be Major by nacturation · · Score: 1

      I don't think AIG would want to implement an Asterisk solution solely for cost savings. As it stands, doing it in-house means that instead of spending thousands of dollars in licensing costs, you end up spending thousands of dollars in employee time implementing it. And if the system should for whatever reason go down in the middle of the night, who's going to come in and fix it? What's the SLA and is it guaranteed? Will it to five 9's of reliability?

      There's probably some good money for the first company to really take Asterisk full-steam into big businesses and offer all the perks that corporations need.

      --
      Want to improve your Karma? Instead of "Post Anonymously", try the "Post Humously" option.
    3. Re:The Cost Savings Here Could be Major by walt-sjc · · Score: 3, Insightful

      Um, Asterisk IS a PBX. It already works BETTER than most any other small-business PBX out there for a fraction of the cost. I've been running it over a year and it has NEVER crashed.

      Digium (the company behind Asterisk) is obviously targeting the "larger than SOHO" business market - 18 ports and up. They sell a 4-port T1 card that gives you 92+ voice channels (depending on your circuit type.) Sangoma also is getting into the Asterisk / voice market with their own T1 cards.

      Telco is it's own little world. You can be a really good networking / server person and be a fish out of water when it comes to deploying a PBX. Some people really don't understand that, then get all frustrated when they try to deploy an asterisk system all by themselves, have problems, then start bad mouthing it. But you don't have to go it alone. There are lots of consultants that can help. You wouldn't buy a $750K Nortel phone system and install it all by yourself would you?

      For SoHo people, google for "asterisk at home." It can be fairly easy.

  9. This will be very useefull for small businesses by wcitech · · Score: 4, Interesting

    My wife and I fix computers, and something like this would be very useful (so useful in fact that I think I'm going to build it.) Even with only one phone line, having the ability to create seperate mailboxes, and conditional voicemailboxes (eg. a different message after 6:00, or on saturday, or during lunch). Hooray for Do-it-yourselfers!

    1. Re:This will be very useefull for small businesses by jedaustin · · Score: 1

      Try asterisk@home (asteriskathome.sourceforge.net)and a $6 digium fxo card.
      Add voip and you get almost free long distance :)

  10. You insensitive clod by yorkpaddy · · Score: 4, Funny

    No one calls me

    --
    "brxref .k.p ,.by xprt. gbe.p.oycmaycbi yd. cby.nci.bj. ru yd. am.pcjab lgxlcj" don'
    1. Re:You insensitive clod by Eric604 · · Score: 1

      And when they do, they got the wrong number. It's so depressing.

    2. Re:You insensitive clod by stanleypane · · Score: 1

      Dvorak, eh? Too bad there isn't a Dvorak spellchecker. Yes, you can even be corrected for bad grammar when speaking in code. This IS Slashdot, afterall.

      lgxlcj = pubpic

    3. Re:You insensitive clod by kjordan · · Score: 1

      looks like you got a typo: nobody ever went broke underestimating the inteligence of the american pubpic http://wbic16.xedoloh.com/dvorak.html.

    4. Re:You insensitive clod by Anonymous Coward · · Score: 0
      "brxref .k.p ,.by xprt. gbe.p.oycmaycbi yd. cby.nci.bj. ru yd. am.pcjab lgxlcj" don't you wish you knew Dvorak

      Cu frg jab p.ae ydcow frg ap. a i..tv

    5. Re:You insensitive clod by Anonymous Coward · · Score: 0

      Post your phone number on slashdot. Somebody might call you.

      Sign it "LinuxGrrrl" and I guarantee you will get a couple calls.

  11. Asterix@home by Fyz · · Score: 2, Funny

    Join Asterix@home today, and use your idle computing power to help druidic scientists explore the possibility of creating super soldiers through chemical means!

    And, coming soon, Obelix@home, which will attempt to genetically alter recipients to be permanently endowed with these abilities.

    Warning, may cause lowered intelligence, anti-authoritarianism and increased risk of obesity.

  12. Missing a crucial piece of hardware by caryw · · Score: 4, Informative

    My company just went completely VoIP. We were originally entertaining the Asterisk PBX option but decided against it for the time being.
    I can not seem to find a piece of hardware that will generate a dial tone on 16 or 24 different ports. I'm looking for one switch-type looking device, preferably rack mountable, that will take however many phones lines, and connect them via whatever to an Asterisk PBX.

    As of right now we put a bunch of the Sipura SPA-1001M in our back room plugged into our router and punched down to the 66 block going to all of the phone sockets in the offices.

    Anyone have any suggestions? Thanks.
    --
    Fairfax Underground: Where Fairfax County, VA comes out to play

    1. Re:Missing a crucial piece of hardware by MoralHazard · · Score: 2, Funny

      I can not seem to find a piece of hardware that will generate a dial tone on 16 or 24 different ports.

      How about a tape loop and an audio splitter?

    2. Re:Missing a crucial piece of hardware by KodaK · · Score: 5, Informative

      If I understand what you've described then what you need is a channel bank and a t1 card for the asterisk box. The channel bank will provide dial tone for up to 24 lines, digitize the lines and pass them to asterix via t1, from there you can route them where you want.

      --
      --J(K) DOS is like Unix in exactly the same way that a pinto is like an aircraft carrier.
    3. Re:Missing a crucial piece of hardware by TheMysteriousFuture · · Score: 1

      It's called a channel bank. T1 interface in, 24 FXS (or FXO) out.

      --
      .sig
    4. Re:Missing a crucial piece of hardware by taniwha · · Score: 1

      well that's partly the point of this Sipura device (or the Digium iaxpy) - the device you want is one of these .... and a common ethernet router ... otherwise part of the point of VOIP is lost .... now all I want is that $99 VOIP/WIFI phone for the house

    5. Re:Missing a crucial piece of hardware by conteXXt · · Score: 0, Offtopic

      no mod points .

      You would have got +1 funny.

      It's a sign of the times my friend.
      Even mod points are becoming extinct.

      Damn global warming

      --
      The truth about Led Zep should never be told on /. (Karma suicide ensues)
    6. Re:Missing a crucial piece of hardware by Anonymous Coward · · Score: 0

      Why not just put VoIP phones out there @ $99 a pop? Get off that dead-end Analog/TDM junk, and good riddance, I says!

    7. Re:Missing a crucial piece of hardware by Tintivilus · · Score: 1

      Since you're using SPA-1001M's right now, I'm guessing you want FXS-to-IP, not channel banks as other repliers have suggested. I googled for "24-port FXS" and the third link was this 24-port FXS-to-SIP adapter. VoipSupply even has a section header for "High Density Analog Adapters"

      or were you expecting something dirt-cheap?

    8. Re:Missing a crucial piece of hardware by shiftoner · · Score: 1

      Take a look at the entry level Inter-Tel systems. Rock solid reliability and hardware. Terrible adminsitration and support tools.

    9. Re:Missing a crucial piece of hardware by Anonymous Coward · · Score: 0

      try http://www.linksys.com/products/product.asp?prid=6 51&scid=38

      Its not a true voip phone, but it lets your current phones pretend

    10. Re:Missing a crucial piece of hardware by whitis · · Score: 1

      The channel bank is one option for handling many ports on asterisk. However, channel banks are old technology and the last I checked fairly expensive and are not scalable in a fine grain. Great if you want hundreds of ports but if you need about 24 lines now, what happens when you need 25? You need to shell out another $2400 for another channel bank plus more for another T1 card.

      It looks like the SPA-3000 could be adapted to support a PBX using a fairly large number of lines using ethernet rather than T1 to connect to the PBX box. First, you probably want to deal with some packaging issues. One approach would be to cut a strip of aluminum 2 inches longer than the SPA-3000 and glue it using silicone rubber to the side of the plastic case. With a couple mounting holes drilled, you now have a way to easily screw dozens of these verticaly on edge to a sheet of plywood on the wall (which is a typical part of any large phone installation). Density would probably be around 24 lines per square foot. As an alternative, you may want to discard the case entirely. This can save space and improve cooling but check first if the case has a metalic coating to supress EMI. Power supply is another issue. Dozens of wall cubes are a pain. You may be able to run a bunch of units off a single 5V 30A supply for a couple hundred extra bucks. Requires soldering some cables, however.

      The cost per port of the SPA-3000 is under half the cost per port of the talkswitch PBX someone else mentioned and it is scalable in one line increments not 4+8 line increments and you get one trunk port for every station port with the SPA-3000. Also, you have more flexibility with the SPA-3000 because you can locate it either in the phone closet or near the phone. And, you can deploy the same equipment in peoples homes. However, you need to do a little extra mechanical/ electrical work with the SPA-3000. Also, the talkswitch is heavy on analog station ports and low on trunk ports which is a traditional PBX configuration but could be quite backwards if you are going to use VoIP phones.

      Now the VoIP solution can potentially have a disadvantage over the T1 solution in that it may be even less suitable to plug a modem into than a channel bank port. If you can disable compression entirely, it should be no worse. But neither configuration will support a 56K modem unless your trunk lines to the central office are digital because of the extra A/D and D/A conversions to get through the PBX. But, if you have a broadband connection anyway, this isn't the same kind of issue it once was though modems may still be needed for certain applications.

      The individual VoIP adapter has another possible advantage in terms of lightning protection (although the arrestor found inside the unit itself is probably not up to snuff). Each port is separate from the hub by two 1500V isolation barriers and from other ports and from the PBX by four 1500V isolation barriers. Not counting the isolation barrier in the phone line interface itself. You still want at least one good lightning arrester on each external phone line and if you have reason to be really paranoid you will put one on the ethernet as well. For better protection, put one good lightning arrestor on each exteral line where the phone line enters the premises and another at the phone closet (with a separate ground from other equipment) separated by a good length of wire; two arrestors separated by an impedence work better than one by itself.

      Of course, if you use VoIP phones, you need a lot fewer phone ports and if you are using VoIP long distance you may need fewer trunk ports. If you are using a talkswitch PBX primarily for trunk ports, its cost per port doubles to about $450 per port.

      The original posting here on slashdot was also about HOME pbx's where scalabity to small systems and the ability to deploy gradually is more important. But for many small businesses, being able to add 1 line at a time for $100 instead of 4trunk+8station lines for $1800 (talkswitch) or 24 lines (either type, usually predetermined rather than switchable) for around $2400.

  13. A SOHO solution? by el_womble · · Score: 2, Interesting

    I hope this is pitched as a SOHO solution. I also hope it fails. Trying to bolt a phone menu system on to POTS is like trying to bolt a security system on to Windows. Sure you can do it, but you shouldn't - it just makes the user experience dismal and worries consumers. It's bad enough that they charge you to keep you on hold, never mind charge you to put you through to the right dept. Our tech team uses an Asterix system to put you through to the right dept. There are 4 of them in the there and they all answer the phone regardless of what button you press... WTF?

    What's next? SOHO phone support outsourcing software? - Enter your script, provide a national rate number and some friendly will instantly start annoying your customers with broken english and massive phone lag too!

    --
    Scared of flying, pointy things snce 1979!
    1. Re:A SOHO solution? by Anonymous Coward · · Score: 0

      I used to work for a consulting company who specialized in PBX software that ran on windows boxes.......and ya know what? it worked GREAT. and the cost was good too. even to companys and hotels with over 200 exensions complex menu and ordering systems, etc. it worked out really well.

      the software was either Altigen, or Televantage and most ran on dialogic boards.

    2. Re:A SOHO solution? by kraiken · · Score: 4, Interesting

      I'm kind of sorry that the above could be seen as flamebait. It does contain at least some points that are worth clarifying.

      Asterisk is one of several different VoIP open-source / freeware software PBX solutions. One of the things you can do is program a phone menu system into it. It is I admit somewhat of a black art still to actually configure Asterisk but if you can get the hang of it, it is very powerful. If you don't like it, try one of the others. It runs on many platforms, some with hardware limitations and of course the underlying security as a whole. Once a call is in your PBX you can then of course program it to do anything that you can devise.

      I personally think the hardware adaptors are expensive for any number/combination of ports (FXO - foreign exchange office and FXS - foreign exchange station - see http://www.voip-info.org/ for a wiki), especially here in the UK if you source locally. I do like the Sipura/Vegastream adaptors for their hardware simplicity though. It may be much better to consider IP phones such as GrandStream or SnomPhone if you are starting from scratch. A mixture of the two is of course what most people will do if they have relatively expensive analogue DTMF telephone handsets.

      YMMV especially if you have to deal with a non-US type telephone system as you will need some kind of adaptor at least a one point in your network.

      Obviously your IT guys just don't want to be bothered all the time. If you get past the menus then you must have a good (read important) reason to require their time. Time is money especially to four guys supporting many more poeple than perhaps they should. Not many have escaped IT cutbacks.

      --
      This is just being lazy

    3. Re:A SOHO solution? by Anonymous Coward · · Score: 0

      >broken english and massive phone lag

      that amuses me

    4. Re:A SOHO solution? by slo_learner · · Score: 1

      It's a tool. It is only as annoying as the implementation. If you have features turned on that you don't need it's not Asterisk's fault.

    5. Re:A SOHO solution? by Marthisdil · · Score: 1

      Trying to bolt a phone menu system on to POTS is like trying to bolt a security system on to Windows

      Also like trying to say that Linux and OS/X are secure....and Firefox is a better browser...But then again, I'm a realist - my computers (both linux and windows) are as secure as I can make them, and even with it's quirks, bugs, and security issues, I use IE and Firefox.

      I guess you don't like going with the mantra of "to each their own"

  14. Better Link by XanC · · Score: 4, Informative
    1. Re:Better Link by sootman · · Score: 1

      "Article on one page, with screenshots, no ads."

      Wow. Geek nirvana. :-)

      --
      Dear Slashdot: next time you want to mess with the site, add a rich-text editor for comments.
  15. But for my home PBX... the bandwidth? by AtariDatacenter · · Score: 1

    Here's what concerns me. I'm sure it is a newbie question. If I've got a VOIP provider, what happens when my computer starts cranking some serious bandwidth in or out of my cable modem connection? Do I need to invest in some different home cable router to prioritize the VOIP traffic?

    I mean, I can't have someone on the phone making a call, all the sudden to go into low rez choppy digital speech because someone else decided to download the latest Linux distro.

    1. Re:But for my home PBX... the bandwidth? by suwain_2 · · Score: 1

      I don't have a VoIP line yet, but my understanding is that most VoIP providers give you their 'box' (called an ATA), that you plug your phone line and Ethernet into. Most, however, sit between your LAN and your cable modem, I guess, and prioritize your VoIP traffic. Or so I understand.

      --
      ________________________________________________
      suwain_2 :: quality slashdot p
    2. Re:But for my home PBX... the bandwidth? by Grand+Facade · · Score: 1

      A couple of years ago I worked with VOIP systems utilyzing Edgemark equipment that prioritized voice traffic. They must have gotten swallowed up as I can find no current info on them. Telverse was the vendor (now level 3)

      --
      Rick B.
    3. Re:But for my home PBX... the bandwidth? by halfelven · · Score: 1

      If you're doing audio-only, then the bandwidth requirements are so low, an old dialup line would probably be enough (bandwidth-wise, not latency-wise). So don't worry about that.

      As for big downloads killing your VoIP channels - the size of the file you're downloading does not matter. What matters is how many simultaneous downloads are happening at the same time. I.e., loading a large web page with lots of graphics is a lot worse than a single multi-GB DVD ISO.
      In any case, you can play a little bit with bandwidth control and prioritisation, either via the Linux firewall, or via whatever proxy you happen to use (Squid), etc.

      Now, if you're doing audio/video - that's something to worry about, bandwidth-wise.

    4. Re:But for my home PBX... the bandwidth? by blackburnrovers · · Score: 1

      one problem is that the voip routers that you get do not have a lot of management functions. so if you had a router that was moving packets on various ports (smtp(25), web(80), imap(143), etc., you are in trouble.

      you need a router in front of the voip router. now you have to learn free bsd instead of just buying a $30 d-link router which has a nice web gui.

      bittorrent and linux iso downloads kill my vonage bandwith, and calls are so lagged that it isn't even worth trying.

      hmmm, free bsd sounds cool, maybe i should try it...

  16. What needs to happen now. by Jakewk · · Score: 5, Interesting

    As someone who started a small business and employed a PBX-in-a-box system can attest, this type of innovation is a godsend to small businesses and start-ups. The real key to this technology taking off however, will be service providers incorporating it into their offerings to small businesses. I think that there could be a very lucrative business model selling services to small-biz/start-ups that allow them to have big-biz type amenities (PBXs, etc...) at lower prices (enabled by OpenSource software). I *believe* that the guys who perform small-biz networking on the cheap could easily add this technology to their offerings and it would be rapidly adopted by their customers. "Hey Jim, I just got done installing the extra PC and the WiFi network for you. I was wondering if you've ever thought of installing a professional phone system. You know, there are these OpenSource technologies that will provide close to full PBX functionality with a third of the cost. Interested in hearing more about it?"
    Very easy sale.

  17. SIPURA PURCHASED BY CISCO by Anonymous Coward · · Score: 0

    First Linksys and now this! Cisco says; "All your VoIP base are belong to us!".

  18. Cheaper/better FXO/FXS from Grandstream by kriston · · Score: 2, Interesting

    There is a cheaper/better FXO/FXS from Grandstream, the Handytone 488. This is a new item and can be bought for under $90. It is extremely small (a little smaller than the SPA-3000) and handles all the popular codecs. Its configuration is a little easier to understand than the huge Sipura menus. It works right away without SIP registration (Sipura needs a setting in order to work without SIP registration) which allows you to test it by placing calls to IP numbers directly.

    Sipura units seem to have much more provisioning support but Grandstream supports the same provisioning protocols. This can help with large deployments where you want to automatically assign extension numbers from a central server.

    Again, this a new product that just went into production and might save you a few bucks over the Sipura in quantity. See http://voipsupply.com/ and http://www.grandstream.com/ for some more detail.

    Kris

    --

    Kriston

    1. Re:Cheaper/better FXO/FXS from Grandstream by walt-sjc · · Score: 1

      FWIW, grandstream phones are NOT well thought of in the * community. The 488 is a brand-new thing for grandstream whereas Sipura has been doing ATA's for a LONG time. I believe Sipura actually designed the original cisco ATA-186/8.

      So they may be cheaper, but I kind of doubt that they are really "better" IMHO.

    2. Re:Cheaper/better FXO/FXS from Grandstream by dtperik · · Score: 1

      I had a Grandstream Handytone-488. It was a piece of crap. It would lock up randomly without cause. It wouldn't pass outgoing calls through correctly. It wouldn't pass calls on to * the way I wanted to. I ended up sending it back. Either the unit I got was just plain faulty, or they rushed this new item out the door too soon.

      - Dan

    3. Re:Cheaper/better FXO/FXS from Grandstream by kriston · · Score: 1

      Please do not confuse the phones and the ATA devices. The Grandstream phones are cheaply-made, I know because I have one and I'm not happy with it. I was NOT talking about phones--I'm talking about the the FXO/FXS ATA devices which are rather well though-of. Please don't confuse the two.

      --

      Kriston

    4. Re:Cheaper/better FXO/FXS from Grandstream by kriston · · Score: 1

      This sounds like an early production version. My HT-488 arrived several months later than projected due to production problems with the early devices. Furthermore the firmware was withdrawn at http://www.grandstream.com/ for more upgrade work. I think they do a good job of standing behind their products. I also think they're pretty embarrassed by the BudgeTone line of phones, which are pretty bad, but the ATA devices are top-notch in my book.

      --

      Kriston

  19. Re: (Not) Missing a crucial piece of hardware by wackysootroom · · Score: 1

    Get a channel bank (I reccomend the Adit 600) and a TE110P T1 card.

    Connect the channel bank to the T1 card via a crossover cable and you have a 24 (or 23 ISDN) port FXS interface.

  20. Bad Request (Invalid Hostname) by Anonymous Coward · · Score: 0

    oops!

  21. You are correct. by Colol · · Score: 4, Informative

    What you'll get when you sign up with the likes of Vonage, Packet5, or the other services is an ATA to connect both your WAN connection and your phone to. With the bare-bones ATA, you plug it directly into your cable or DSL modem, and connect any other devices (routers, etc) downstream of the ATA. This lets the ATA (a) avoid problems with NAT by being outside NAT and (b) keep your call quality up there by enforcing QoS limits on all non-VoIP traffic. The ATAs are also generally smart enough to loosen up the restrictions when the phone's not actually in use.

    Vonage (Packet5 may be now as well, I can't recall) also offers an all-in-one solution that's a router and an ATA in one box. You can also pick up the combos yourself (Linksys makes 'em), but they tend to be tied to one specific service -- so do your homework before you sink the cash on a combination ATA and router.

    1. Re:You are correct. by renehollan · · Score: 1
      The QoS on the stock ATA I got from Vonage sucks. I ended up doing my own traffic shaping with a little Linux box. Of course, attempting to throttle incomming traffic rather than shaping it upstream, is never going to be perfect, but at least I can do it better than Vonage's ATA: it basically throttled ALL incomming traffic all the time, to a dismal rate, regardless of any VoIP calls in progress at the time.

      YMMV.

      --
      You could've hired me.
  22. It will never stop. by Anonymous Coward · · Score: 0

    The sad thing is that /. does not even make money off this.

    They are just sucked into doing it because the editors don't bother to look at the stories they post.

    It is sad really. It is a total abuse of the system. Like getting a retard to give you their lunch money for 10 magic beans. Do you really expect anything better from /. though.

    The days of this site being good for anything more then a laugh have long been gone. If you want news that is more then a hidden advertisement or that isn't older then you grandmother I suggest elsewhere.

    1. Re:It will never stop. by greenegg77 · · Score: 1

      Wait a minute - *10* magic beans? The most I ever got was 5! I'm gonna write my Congressman and complain about that cheap-ass PE teacher!

      --
      --- This .sig for sale - $500 OBO.
  23. Affordable PBX? Nortel...... by killercoder · · Score: 2, Informative

    I've had a PBX at home for 2 years now.....look around any old office building thats getting renovated - you'll find at least two PBX's getting tossed out.

    Nortel Cics or Mics are the most common, they work great, have zero noise/fans. Autoattendant (on most models - or with the Star Talk Flash), voice mail, Fax reroute etc. Great little systems, why go Asterisk?

    I love all tech - just cause it's old/experienced don't abandon it.

    1. Re:Affordable PBX? Nortel...... by halfelven · · Score: 1

      Because it's a lot more powerful and flexible? ;-)
      Seriously, how many PBXes you can find lying around that have VoIP capabilities?

    2. Re:Affordable PBX? Nortel...... by BenFranske · · Score: 1

      Exactly, there's a reason those old PBXs are lying around and it' because they don't support VoIP, are generally a PITA to manage and require very expensive phones with limited features. Once you work with a flexable VoIP system you'll hate going back.

  24. Overkill by Hoi+Polloi · · Score: 1

    A home PBX is to the average person's actual phone needs as a Hummer is to the average person's actual driving needs.

    --
    It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
  25. MOD ABUSE by Anonymous Coward · · Score: 0

    How is pointing out that the submitter is also the writer offtopic. It is not like the submitter said "I wrote a review" or anything like that. In fact he makes it sound like he has no connection with the Geek Gazette at all.

  26. I'm pretty sure I wasn't the only one... by lpangelrob2 · · Score: 5, Informative
    I'm pretty sure I wasn't the only one that saw "PBX" and said, "WTF is a PBX?"

    Short for private branch exchange, a private telephone network used within an enterprise. Users of the PBX share a certain number of outside lines for making telephone calls external to the PBX.

    Most medium-sized and larger companies use a PBX because it's much less expensive than connecting an external telephone line to every telephone in the organization. In addition, it's easier to call someone within a PBX because the number you need to dial is typically just 3 or 4 digits.

    A new variation on the PBX theme is the centrex, which is a PBX with all switching occurring at a local telephone office instead of at the company's premises.

    From the Webopedia.
    1. Re:I'm pretty sure I wasn't the only one... by booyah · · Score: 1

      No sir, I am pretty sure you were the only one to ask what was a PBX

      Thanks, leave your geek card on the receptionists desk on your way out.

      --
      #include sig.h
    2. Re:I'm pretty sure I wasn't the only one... by not-real-sure · · Score: 1

      A new variation on the PBX theme is the centrex, which is a PBX with all switching occurring at a local telephone office instead of at the company's premises. Since when is centrrex a new technology? Stay away from Centrex unless you have no choice. The whole point of having a PBX is to control your organizations system. Not to give it back to the phone company.

      --
      My Doom. The gift that keeps on giving
  27. Actual affordable PBX by doombob · · Score: 1

    TalkSwitch Phone System

    Now all are VoIP upgradeable. Plus they can expand to suit your growing business' needs. /sales pitch

  28. phone line as a trunk by hey · · Score: 1, Funny

    What is this news for elephants?!
    Jeeze.

    1. Re:phone line as a trunk by Anonymous Coward · · Score: 0

      Yeah, right, that's exactly what it is. Now go back to sleep.

  29. someone humor a question from a noob... by sbma44 · · Score: 1

    could I buy this product, configure Asterisk and have it forward calls received on my landline to a SIPphone?

    "no, *you* couldn't configure Asterisk" is probably the right answer, but pretend for a second that I could. Is this possible?

    1. Re:someone humor a question from a noob... by BradySama · · Score: 1

      Yes, that is completely possible; and, it's one of the reasons some geeks (and non-geeks) would be interested in using such a device even when you only have one POTS (regular phone line) coming into your setup. You can also forward SIP calls to your POTS cordless phone, etc...

    2. Re:someone humor a question from a noob... by halfelven · · Score: 1

      Yes. That's precisely one of the reasons why many people play with Asterisk.
      But it can do a lot more than just that.

  30. $$ Money $$ by Anonymous Coward · · Score: 0

    Your PBX is limited to 32 stations. Adding stations adds licensing cost. It's proprietary? It's VoIP upgradeable.

    Asterisk is free of licensing cost. 1 station or 1000 stations does not incur additional licensing cost. It is open source. It is VoIP enabled from the start, no need to upgrade.

    For all I know though, your PBX may well have Asterisk inside. Many do.

    1. Re:$$ Money $$ by doombob · · Score: 1

      Yes, but you order it, plug it in, and you're done. It's all about how much time or money you're willing to put into something. Since time is money, you pay for it one way or another.

      Most of our customers have structured wiring that makes it so easy for us to not do any work except plug it in and configure it through any computer on the network.

  31. Stop trying to see a *big picture* by Anonymous Coward · · Score: 4, Informative

    Sometimes there is a lot more happing in a simple setup.

    I have 1 POTS line, 3 IP phones, and a plain old cordless plugged into an FXS port on my asterisk server. Keep in mind this is a collection of parts that have grown from testing. All that would be needed for this is either 2 analog phones with FXS, or 1 analog and 1 IP phone etc etc you get the idea.

    I get a regular phone call, my home phones all ring, there's no answer, it goes to voicemail, people can pick who they want to leave voicemail for. I get a copy of the .wav file emailed to me as well. Nothing mind boggling.

    2 of the IP phones are at home, 1 is Overseas where I have family. My wife returns back for a visit every year. Most of the year it is the line she uses to keep in touch with family (once she plugs in the second box over there for me, she can use it to dial out to her friends over there as a local call as well)

    While she is back visiting, she can try to call me via IP. Failing that, dial 9 and the number and dial out from our landline to my mobile phone, for example (which, coincidentally, is not always great when you're "killing time at the pub") . When she is away, she uses this to keep in touch with others here, and to continue and other local business calls she needs to make.

    I can also dial home, hit a key to dial out before voicemail rolls in, and reach my overseas IP phone.

    This isn't an overly complicated setup, cost little money to setup, and created an extremely useful way to keep in contact. Don't turn on all the bells and whistles and you don't scare callers (Do they *really* need dial by name?) The situation I use it in is nothing off the wall, and it's simple to use. This doesn't even *start* to cover the practical applications it has WITHOUT being an overbearing system.

    For a small consulting business, or mobile worker, there's a huge benefit. Even for a family, there's a major convenience. And according to my call detail records, in under a year I've already paid off anything spent in savings from overseas calling (and more). The rest of the ongoing savings can go to my beer fund. You can call it pointless if you want. My pint glass and I would disagree with you though.

  32. Expensive by eikonoklastes · · Score: 1

    I was all excited, until I saw the price for the SPA-3000 was $149.95 Maybe I'll wait a bit...

    1. Re:Expensive by walt-sjc · · Score: 1

      If you tried shopping around AT ALL you will find it for under $100. For what it does, that's not a bad price at all.

  33. Nothing in the article fully explains. by Futurepower(R) · · Score: 1


    Froogle search: SPA-3000.

    Nothing in the article, and nothing in the comments above, fully explains the benefits of Asterisk for a small business or home. Transferring calls to a second line? Voicemail to email? What else?

    Froogle search for the Digium card: Wildcard TE110P

    T1 hardware: 24-Port FXS Analog Gateway (SIP).

    1. Re:Nothing in the article fully explains. by cduffy · · Score: 1

      Transferring calls to a second line? Voicemail to email? What else?

      I'm planning on sorting calls between the phones for the three members of my household based on caller ID. (No caller ID or calling from a number that doesn't match a list of known patterns? You go straight to the menu system, and unless you have a passcode [given to friends and family], you go to voicemail).

      There are also scripts available for wasting telephone salestypes' time, and quite a bit of other miscellany.

      I'm tempted to get a TDM400P instead, though, so I can do faxing (which gets hosed up pretty badly due to the jitter on IP-based protocols) reliably -- that way I can use the system to prototype the new faxemail gateway I intend to build for work. Except that those cost about twice as much.

  34. Book on Astrix by Anonymous Coward · · Score: 0

    There are no ignorant questions. Or maybe I just think that because I had the same question.

    Signate has an excellent book on Astrix.

  35. VoIP, QoS and OnDo SIP Server by Da_Biz · · Score: 4, Informative

    I test VoIP products for my company, and have found that QoS needs to be managed at a basic level. If you're in a household that has slower DSL, or limited upstream bandwidth (for instance, Comcast Cable Modem in Portland), it would be wise to have your router process and remark (DSCP) all of the traffic between your IP phones and the router as EF.

    Granted, your ISP probably doesn't care if your traffic is marked EF, but would prevent PCs on your local network from clobbering your bandwidth during a call.

    Also, check out OnDo SIP Server from Brekeke. I play with it in my VoIP lab, and find that it's a find piece of software for quick n' dirty SIP setups. It's free for non-commercial users.

    The slightly more adventurous can try Asterisk@Home which has a streamlined setup.

  36. Yes - every few days... by frank_adrian314159 · · Score: 1
    Seems every few days there is another news item about Asterisk PBX or Asterisk@Home...

    ... and on Slashdot, they're often the same ones!

    --
    That is all.
  37. this one time... by Anonymous Coward · · Score: 0

    i had like 400 people staying at my house (really)
    so i needed a pbx system (really)
    so i bought this one(bullshit)
    and it worked great(morebullshit)
    and i was so glad that i finally had a great
    pbx for house use since i have 400 phones.

    every time it rings, it sounds like headache.

  38. Another cheap pseudo-PBX by Old+Telco+Guy · · Score: 1

    How about this series of devices: http://www.digitone.com/

    I've been using one now for several years with great results! It lets me do the following:

    • Make long distance calls from work by bridging them through my PBX using my residential plan long distance and 3-way calling.
    • Have 4 extensions (mine, girlfriend's, business, general) with answering machines/phones for each.
    • Keep telemarketers from ever ringing a device in my house, ever.

    And all for around 100 bucks!

  39. Prices due to change soon! by Anonymous Coward · · Score: 0

    Now that Cisco is going to buy Sipura, you can plan on a price change really soon. Once the deal with Cisco is done, expect to see this unit for $249.95

    Toodles.

  40. Use bandwidth shaping by shis-ka-bob · · Score: 2, Informative
    1) Find a old (486+) PC with two ethernet ports.

    2) Purchase and Install OpenBSD

    3) Purchase Building Firewalls with OpenBSD and PF, 2nd ed by Jacek Artymiak (ISBN: 83-916651-1-9)

    4) Use bandwidth shaping as described in chapter 10.

    5)Enjoy your new router.

    This should give you high priority bandwith for the VoIP. It cannot control how your ISP allocates bandwith (of course), but I think that this would help the average user happier with both voice and data share the same bandwith.

    --
    Think global, act loco
    1. Re:Use bandwidth shaping by Vellmont · · Score: 1

      Or just plunk down $55 and buy a Linksys WRT54G, put your favorite open-source linux firmware on it (sveasoft, etc) and enable traffic prioritizing. Much more reliable, and faster than a 486 which tops out at about 2 megabits/sec.

      --
      AccountKiller
    2. Re:Use bandwidth shaping by gothfox · · Score: 1

      You make it sound like bandwidth prioritizing and shaping is somehow limited to OpenBSD. It is not.

      If you like Linux you can use tc which is a very powerful and flexible tool (see lartc.org for more information). FreeBSD had ALTQ for ages which can do a lot of stuff.

  41. Impress chicks? by EmbeddedJanitor · · Score: 0, Offtopic

    Sorry to burst your bubble, but those inflatable dolls have seen it all and don't impress easily!

    --
    Engineering is the art of compromise.
  42. fxs from voice modem? by Anonymous Coward · · Score: 1, Insightful

    Would it be possible to create a fxs easily out of a voice modem? Voice modem is basicaly a fxo. So I figured that if it was possible to somehow 'add dial tone', it might be possible to build a fxs expansion card from a dirt cheap voice modem.

    Anyone got an idea if it could be done?

    1. Re:fxs from voice modem? by bobsalt · · Score: 1

      i think to be a fxs, the device has to be able to generate a dial tone. I don't believe a modem can do that.

    2. Re:fxs from voice modem? by petermgreen · · Score: 1

      well a dialtone is just a f*cking tone so that shouldn't be a problem.

      what you will need however is a pair of relays. The coil of one relay is used to deliver DC to the line (a relay coil makes a handy inductor ;)) and to sense when the phone is off the hook. The other relay

      you may have to seperately power the modem side (with dc blocking capacitors) to stop the modem keeping the sense relay on

      then you would need a second relay to put ring voltage into the phone.

      the hardware wouldn't be too difficult to make but getting the software right could be tricky

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
  43. absolutely. by No-op · · Score: 1

    good call. make sure to stamp "not a geek" on his forehead as he exits the basement.

    --
    EOM
    1. Re:absolutely. by lpangelrob2 · · Score: 1
      That's all right, I hear most geeks are assholes anyway. :-)

      <stamp>

  44. * is still way over my head... by doormat · · Score: 1

    And I thought I was pretty knowledgable about technology.

    Do most people need a PBX at home? Hell, I'd be happy if I could get something that did Fax to PDF and voicemail while sitting between the incoming analog telephone line and my (inside the house) telephone network. Do I need a computer and all this crap for that?

    --
    The Doormat

    If you're not outraged, then you're not paying attention.
    1. Re:* is still way over my head... by Mistah+Blue · · Score: 1

      I have Vonage for my office line. We still have analog for home line. I think Vonage provides all my needs. PBX is overkill.

    2. Re:* is still way over my head... by doormat · · Score: 1

      Exactly what I need it for, an at-home-office. I want some of the things a PBX can offer, but I only need one phone line for voice, and I dont want to pay for a second line for incoming faxes if I dont have to...

      --
      The Doormat

      If you're not outraged, then you're not paying attention.
  45. Can someone help? by Palal · · Score: 2, Interesting

    I have a POTS line and a whole bunch of phones around the house. I need to have my outside line route to the PABX and then the PABX would route to each individual extension. How would this be accomplished?

    --
    -Palal
    1. Re:Can someone help? by Robert+The+Coward · · Score: 1

      It is rather simple but not cheap. Most house are setup in a star paten at the DMark into you house. You could setup the box and run wire from you box to the demark and have lots of cut together wires. Not Pretty but Cheap. But it will require losts of FXS ports. One for each line or extension. Each Extension cost around $100.00 there are cheaper options at time and of curse alot more expenise options as well but I have been having trouble find a system for less then $75.00 per port. SIP phones are droping and you can get several models as well at around $100.00 as well. Prices are coming down as PBX/Sip Equipment becomes more used but still a fair amount of cost there. In the US there seems to be a few major reasons for moving to a home based PBX. 1) Because you can. Some people will build anything because it can be done with a price range they can afford. 2) Cheap to free Oversea calls. Local Rates inside the US just doesn't justify the cost anymore. 3) Finding value in certain options that makes the expensive worth it. Abilty for your extension to follow you anywhere. Voice mail to email. Separate out calls for your Teenager from you calls on the answering machine. Small Bussiness needs like Fax to email gateway etc.

    2. Re:Can someone help? by kenh · · Score: 1

      To do this you would need what is called "Structured Wiring" - in short, you would need each phone extension in your house to have a dedicated "twisted pair" come down to a central location, where each extension would be directly wired to a port on your PBX.

      Your wiring right now is *probably* like a long snake that runs through the house, with about 10 pairs of wires (it seems, maybe more or less) running continuously around the house. That wiring will not work for you.

      The ports to tie each phone line into your PBX will run you about $100/port, so for four phones and one line coming in, that would be $500 plus the cost of the computer and running the wires to each of your four rooms.

      If you have an Ethernet network in each of the four rooms, you could get VoIP phones, or VoIP adapters for your extensions and avoid the cost of the structured wiring.

      --
      Ken
  46. Asking the wrong question by bluGill · · Score: 1

    You are having problems because you are asking the wrong question. Throw your old phones away. Get new VOIP phones. (Cheap ones are about what the cheapest converter would cost, expensive ones can do a lot more than a converter ever could) You get more flexability, as you can choose how many buttons you get, and what is displayed on the screen of the phone. You can mix and match for features, or give everyone the same phone for a better bulk rate, depending on what management wants)

    There is a place for analog lines. If you need an emergency phone in the parking lot that instantly calls security when it is lifted for instance (I haven't seen VOIP models that do this - yet). Otherwise VOIP phones are the answer to the problem you are trying to solve.

  47. Costs Might Not Scale Like You Think by theManInTheYellowHat · · Score: 2, Insightful

    I have been checking out PBX's and phone systems for a while and I manage a couple of them right now.

    The real cost of the phone systems are in the desksets which vary in features and cost but in a medium small office the PBX is a small percentage of the cost.

    Consider a 30 station setup with 8 lines. The 30 phones would be somewhere between 6000 - 12000 depending on model. (you probably would not do elcheapo $75 ebay phones).

    The {insert brand name here} PBX would be more but the asterisk would be probably $2000 (including cards). And then, no matter what system you choose, comes the programing, which should be about the same no matter what.

    The thing that asterisk provides is the ability for everyone to use it. It is also exteremly accessable.

  48. MOD PARENT UP by BenFranske · · Score: 1

    This is exactly what he wants. A T1 channel bank is exactly what they want. As the parent mentioned you then connect it to your VOIP server as you would a standard T1 voice line.

  49. community voip service? by bazooka_foo · · Score: 1

    I would be interested in donating a land line w/ a astrisk box attached so that others could route voip call in my area if others did the same.

    Is there a network of people doing this?

    1. Re:community voip service? by Anonymous Coward · · Score: 1, Informative

      http://www.fwdout.net/web/ does exactly that, share a line, get a line.

  50. Convenient. My mom just called, asked me... by bs_02_06_02 · · Score: 1

    Talk about convenient. This topic just came up yesterday. My mom called, asked me what type of PBX she should purchase for home use. And to think that someone had this very thought in mind today! Wow. Thanks everyone.

    --
    -- No sig for you!
  51. P.O.S by qnxdude · · Score: 0

    Having used the SPA3000 with asterisk and on its own.. all i have to say is.. its a piece of shit!.

    If you are going to use it, i hope you like echo's , faint voice levels (to try to get rid of echos) and random disconnects..

    better yet.. save your money, go buy a tdm400 for allmost the same money, have perfect audio, and have a phone system that just works.

    1. Re:P.O.S by cduffy · · Score: 1

      If by "almost the same money" you mean "twice as much". A SPA3000 runs about $100, a TDM400 costs about $200.

      Also, I don't have expansion slots, and my always-on home box is running Windows w/ coLinux (so the Linux side doesn't have direct access to the PCI bus -- but the fiancee gets to play The Sims).

  52. ignorant reality. by Anonymous Coward · · Score: 0

    "I have a POTS line and I have a VOIP account, both of which terminate on my Asterisk box."

    and

    "Although I make savings on my calls and get added functionality, the main reason I use Asterisk is for control over my telecoms. Apart from that, it's cool!"

    What was that about "control"?

  53. You insensitive clod-Bookie. by Anonymous Coward · · Score: 0

    "No one calls me"

    Except for all the people you owe money.

  54. Perl Script external database conn by Anonymous Coward · · Score: 0

    How did you handle the external database connection pooling in your script? The overhead of repeatedly making a connection for every new call can be a problem.

  55. Your prices are off by cduffy · · Score: 1

    My supplier just quoted me a T1 card and a channel bank, together, for $850.