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Do-It-Yourself VOIP Telco
DamnYankee writes "Robert X. Cringley predicts the coming demise of the landline telco monopolies from the grassroots encroachment of VoIP and Linux on the latest generation of Wifi routers. According to Bob, 'The result is a system with economics with which a traditional local phone company simply can't compete'. With Linux capabilities and builtin VoIP any Mom and Pop can become the local equivalent of a cellular phone company for the price of $79 Wifi router. Now how is Verizon going to compete with that? Get the full scoop from the man himself."
A carton full of dixie cups and a spool of thread. No one wanted to pay my rates sadly enuff :(
..want to replace the telephone company with our own VoIP solutions?
Or am I reading that wrong.
clifgriffin > blog
Unfortunately the people that control the bandwith that we could use to support this "grassroots" VOIP campaign have very powerful government lobbies. We aren't going to get very far before the government oversteps its bounds and protects the large conglomerates.
He mentions that the mobile phone markets were a "disruptive technology" against the 125 year old wired telephone business. The single thing he fails to recognize is that the wired phone companies have the largest stakes in the best wireless networks out there (AT&T/Cingular, Verizon, etc).
He then glazes over the billing possibilities as you jump from router to router. We aren't talking about a cell phone here. We are talking about the possibility of a wireless card in a pocketPC to be used as a phone. It's a bit harder for Joe Blow to get a hacked/stolen SIM card for his phone. It's not quite as hard to get a software program that doesn't give billing information that is tracked back to that "phone" user.
The phone companies will compete by lobbying making sure that any startup VOIP phone company has to pay the same taxes and fees, and has to provide 911 and wiretapping, etc.
Don't you need an ADSL/Cable connection to that little router? Yes, I know you can have your packets hop over to the next router and so on, but the article is still pretty optimistic.
(and, yes, I did RTFA)
Let's face it: if the big telcos aren't dead by now, this means they are not going to die anytime soon. I doubt Verizon is quaking in its boots right now...
The right to offend is far more important than the right not to be offended. (Rowan Atkinson)
Take care!
Erick
http://www.busyweather.com/
Soon enough they'll regulate the hell out of VoIP and similar to save the phone companies. Next thing you know AIM will be ruled a telephone company because of the "talk" feature.
Damnit, the government should stop this sort of thing - it could reduce the Telco's profits.
I say we, as a group, should not support this in any way, shape or form.
You can't expect to wield supreme executive power, just because some watery tart threw a sword at you
a system with economics with which a traditional local phone company simply can't compete'
How many times have we heard that (insert some innovation here) will lead to the demise of (insert traditional provider here). Look, the only times when large established providers of a given good or service are eliminated by something new is when entrenched management gets hubris and thinks the new thing is not worth their bother. If/when the existing telcos realise they need to get on this bandwagon they will, and with a vengance. You can't count out the resources they can bring to bear until they don't and are truly out.
happening about the same time that cars use an alternative to gasoline. Big business makes the decesions, not us, not the govt. Its a shame...
so, whats stopping the big guys from buying these in bulk for under $79 (after bulk discount)
if they get it cheap then they can setup quickly, and still gouge you for the profit.
Perhaps the prevalence of wireless networking equipment will eventually lead to huge mesh networks, so that instead of going from me to an ISP to the destination, my voip calls could go from me to my neighbour to the guy down the road. Obviously there are security and privacy issues, but the and even the Internet aren't really needed all of the time for voip to work, and potentially this could work well. It would also mean we could bypass regulation by simply doing it :)
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He wrote this particular column WAY too technically.
I mean I'm very computer-savvy, but he lost me.
I picked the wrong day to stop snorting glue.
I don't know the meaning of the word 'don't' - J
I'm never quite sure just how this is supposed to work. Aren't VOIP carriers actually piggy backing on resources provided by the voice carriers in the first place?
Are we just talking about a segment of the market or what? I don't know all that much about the telco industry, but it has always been my impression that data lines shadow voice lines and are owned and maintained by the same parties. Is that not the case, or is my info wrong? Are there significant data networks in this country that are not in some way owned by or related to major telcos?
To this extent are we talking about big players really going out of business, or there simply being a shift in the market whereby the telcos morph into the owners and maintainers of the backbone and little VoIP carriers pop up at the edges. Then how long will it take for consolidation to cull these little ones to the point where we once again have new telco monopoly, but over a different style of infrastructure.
You can always do it cheaper if reliability and availability are not important. My wireline telephone just works. I've had one outage in the past 15 years. I've never had a dropped call. The switch never crashes, get infected with viruses, or demands that I upgrade to MS Telephone 2.0. It provides battery power to my telephone, ensuring that it still works even during blackouts and storms. It provides enhanced 911 service if I need it.
Mea navis aericumbens anguillis abundat
There has never been any grassroots effort in the U.S. that has successfully toppled - let alone replaced - any entrenched body, corporate or government. After the revolution, the first thing the Feds did is make sure it could never happen again.
I've setup a Linux box and Asterisk along with a couple Grandstream IP phones. The quality was as good as a landline phone, and we'll probably be rolling out a test next year sometime, putting phones in all the classrooms (we're a public school). One card in the server to get us an outside line and we're set....
As soon as wireless VOIP phones come down in price, I'll be running my own wireless service for myself. I plan on setting up an Asterix server at home plugged into my landline. I can then use my VOIP phone anywhere in the world to call!
Being able to cheaply setup VOIP using your existing landline at home will decimate cell service as soon as more WIFI hotspots get out. IDT is already looking at this as a replacement for cell services.
What, me worry?
You need more bandwidth than you think.
Remember, ADSL and cable are asymmetric. That upstream bandwith is usually 256-384k. Each VoIP call is going to take anywhere between 24 and 64k of that just for the audio. Add on to that the administration overhead (UDP/IP and whatever stream management protocol you're using), and it starts to chew away at your bandwidth.
Additionally, the connection you've got is designed for bursty traffic. VoIP is most definitely NOT bursty (unless you use silence suppression, which I've yet to see a vendor get right). If you packet delay gets over 150ms, you're going to be upset. Jitter larger than about 50-80ms is going to screw with your call quality. I've done VoIP networks, and can attest to the catestrophic effects of just a small amount of jitter when you start to get near your 150ms limit.
Don't get me wrong: VoIP is here and going strong. But it's doing so in high-quality networks that can afford to supply fixed-bandwidth reservation, , not commodity broadband products.
note there's no QoS with VoIP suppliers...
if they've not got a highly resilient route onto the 'net then they are at the mercy of their uplink ISP(s).
Think 911 (or equiv) service going down for days on end as the DSL line driving the VoIP was down.......not good.
Where do you plan to get enough bandwidth to run a public VoIP service? With one or two calls at a time it would be possible, or if a whole group of people combined the routers to make a mesh over the town/city/suburb. But with this king of VoIP implementation, only a few people can make phone calls at a time to areas not covered by the network.
Perhaps if everyone had a 1500Mbps SDSL line and the whole network was load balanced, it would work, but this will never be able to beat the convenience of my 100g polycarbonate phone in my pocket, which can call anyone, anywhere, without any bandwidth limits.
Oh yeah, I see it right before me. It will work right like with the Internet, all those numerous prospering small local Mom and Pop ISPs, no large corporations to be seen. Right ?
They will have to collect 911 taxes, Federal Taxes and buy business licenses. While VOIP may be nice if there is a power failure everyone with a desktop will be offline and the cell phones will become quickly over loaded. Even during the recent black out in the NE USA the local telephone service worked flawlessly. ISP's will need to have reliable backup genarators which are not cheap to buy and maintain.
I'm a vonage customer. I shed my dependance on the local telco with great pleasure, and a bit of egotisitcal pride. Still, having used it for about 8 months, I've come to this conclusion: it ain't for everyone.
Now don't get me wrong, I'm not going back. But I can't imagine my neighbors buying into what RXC suggests. First of all, there's a reliability issue. Folks need to have 911 service available. They need to be able to call the power company in the event of an outage. They need the phone to be a *LOT* more reliable than current VOIP is.
For me, when the power goes out in our neighborhood, it doesn't matter that I've got my VOIP device connected to a UPS. When the neighborhood loses power, my broadband internet loses connectivity. No internet, no phone. No phone, no way to call the power company to report an outage. It gets worse if you imagine someone needing emergency services (e.g. 911) during a power outage.
It's a nice theory, but it doesn't scale. And reliability is the limitation. Right now, I (personally) can put up with the lack of reliability because I know that my neighbors have nice reliable land line based phones, and in a pinch, I can pester one of them to make a phone call. (I've got good neighbors, all of whom are willing to help each other out in a pinch.) But if the entire neighborhood were on VOIP, we'd all suffer. VOIP today just doesn't have the reliability to scale. Some of us who are willing to put up with the occasional echoes, inconsistent quality, and lower reliability (in exchange for much lower cost). But we can't all do that. We rely on some of the neighborhood to have a real and reliable phone service. VOIP isn't there yet. So it won't scale as far as a neighborhood. Much less become a "disruptive technology".
$.02
Key to financial independence: Spend less than you earn. Save and invest the difference. Do it for a long time.
Just as an example. Comcast, the very company that is talking about larger VOIP rollouts since it has "millions" of customers on its broadband service, can't even keep the broadband service running this morning. They are having nation wide outages. Broadband is not considered by the government to be an Infrastructure service yet, like electricity, natural gas, telco. Thus it does not get the same level of guaranteed uptime. When broadband goes down, so will your VOIP. My telco phone just always works. That is what people expect.
I looked at antennas and amplifiers and wireless geek sites. I discovered two things:
At this point, I would frankly love to hear, "hey idiot, you're doing it all wrong! here's a url, here's what you're missing, etc etc." But I have a sinking feeling I wont.
This leaves me with the impression that Wifi is entirely not powerful or reliable enough to get anywhere near the neighborhood/citywide meshes that people (even Cringley, apparently) imagine. Like I said, based on my experiences so far, it's off by an order of magnitude. Even if you can fix that by upgrading your gear, it's not cheap, or easy.
One thing I will say is that I'm impressed with Linksys for going with Linux, and now I understand why I should have bought them, even though they're half as fast as what I bought, and don't support WPA. My DLink router, although it's overcome its notorious problems with 5-minute interval spontaneous reboots, still needs to be rebooted daily, otherwise traffic slows to a crawl. DLink, of course, like most vendors, finds only benign amusement with the fact that their product's firmware is totally boned. It's too late now, but if I could, I would bring everything back and switch to anything that ran linux in the router.
Want to Know How to Cheat the GPL? Read On!
Voice network hacking has gone overlooked by both hackers and security professionals alike. With enough know-how, one can hack a PBX and make long distance calls, copy voice mail, do all kinds of evil stuff. The stakes were raised when they (the voicemail companies) tied voicemail and e-mail together.
I would hazard to say that many companies voice networks are just as vulnerable as their data networks, or even moreso, but they are not targetted as much, so they do not get as much attention.
What about critical services, such as 911 service? Are going to equip all of your customers with backup generators to power their VOIP phones and other network devices (router) during a power outage?
You might say to me, "well, people today use cellphones as their primary means of communications - and they are responsible to ensure it is charged up in the event of an emergency". That may be true. However, everyone does not have cell phone service - or wants cell phone service for that matter. As a common carrier, phone companies have a responsibility to provide dialtone for everyone who wants it - and as a result provide emergency services.
It is also prohibitively costly to provide fibre to every location - particularly in rural areas. Given that, broadband service will not be available to drive VOIP solutions.
If we decide to drop copper as an alternative, then we will lose big when some event occurs that prevents a VOIP user from getting a critical emergency call through - and the resulting lawsuits and regulations will stifle growth and acceptance of VOIP as a viable universal solution.
Lodragan Draoidh
The more you explain it, the more I don't understand it. - Mark Twain
What will Mom & Pop charge?
How will they afford the bandwidth.
How many subscribers will they need?
How will it be cheaper for me to go through them rather than a telco which can provide the same service for much less.
Coinsidering that cell phones have only been commercially available 20 years, the costs are pretty low. in a few years we'll be getting unlimited minutes (including peak time) on cell phones. Most plans practially already have unlimited minutes off peak.
I'm sorry I dont see how this will be profitable considering that Mom & Pop need their cut and setill depend on a big telco to piggyback on.
The initial (and perhaps operating) costs will be too high and too complicated. VOIP is already available DIRT cheap. Free londg distance is already virtually ubiquitous. I dont believe Mom & Pop can compete with that.
Wasn't there some patent, protecting the process to press some buttons on a device without wires and beeing comunicativly connected to some other persons device without wires, enabling both parties to talk with each other?
Would I trade the reliability of my landline (I can't remember losing service in the past ... 15 years ?) for some ghetto rig built on consummer-level equipement running over best-effort protocol to shave a few $ from my monthly telephone bill of 25$ ? Thanks, but no thanks.
:wq
that guy's article almost reads like a "they're coming to steal our jobs and our women!!!1" rant.
while the dinosaurs were undoubtedly alarmed to see a huge meteor ending their way of life, all the smaller mammals were crying with joy to see their predators massively die.
Umm does anyone else here remember the Sears/Gap/Borders are dead stories from around 1998/99 because the Mom and Pop stores would beat them thanks to ".com".
I've read the article and I'm not seeing anything different, and certainly nothing that thinks about the realities of providing secure 911 access and QoS over a WiFi router and ADSL.
An Eye for an Eye will make the whole world blind - Gandhi
People say my sig is the best thing about me.
The problem with this is that a big ISP buys $500,000 Cisco routers to keep the internet flowing. If you think a bunch of $70 wireless routers (even $500,000 worth) is going to replace a mega-router, you're kidding yourself.
Our goal here should be to create reliable grassroots networks. I have phone service because if I need to call 911, I NEED to call 911, whether my neighbor accidentally kicked the wall blister of his router out of the wall socket or not. I've got no love for Telcos, but I do like their reliability.
The meek shall inherit the earth, in 3 by 6 plots. - Lazerus Long
In most cases around here the ILEC telcos are the closest Tier1 ISPs so they are making money both ways.
What are you going to do for the very many not-routine phone calls that so many of us get? You can't pre-emptively white-list everyone in every situation that might need to get ahold of you. I've had too many calls that in your scenario, would have been blocked.
It sounds wonderful, except that its not practical. You can't know who/what/where is going to need to call you.
One Can Never Own Enough Musical Instruments...
Cable broadband customers get yelled at for running servers, downloading big things, too much traffic...
A few things have to change - Comcast and their ilk have to change what they allow or else they'll have more traffic than they can dream of.
I believe they don't like people actually using the bandwidth they paid for, so that needs rethinking.
"Win treats sysadmins better than users. Mac treats users better than sysadmins. Linux treats everyone like sysadmins."
But surely one of the major fuctions of a phone is that people can wring you.
How is anyone going to find my phone with a roaming v/ip setup?
Are all those little 400 mz processors with no disks going to implement a CDMA/GSM type roaming protocol? (Phone contacts local base station, via several hops contacts your CDMA/GSM provider and tells it, plus the FBI CIA etc., where your phone is so your calls can be routed to the right base station).
Old COBOL programmers never die. They just code in C.
my friend, you don't have 99.999% availiability with cell phones, and they are eating the telcos' lunch. VoIP moved the same thought patterns to wireline -- if it's cheap enough, you can afford to say "WHAT? Bill, can't hear -- BILL! HELLO ?!?!?" a couple times. that's what big business is saying by changing internal calling to VoIP, and there is a boatfull of that now and more every day.
surprised some MBA hasn't proposed this to solve the drug price crisis. "Ask your doctor if PILL is right for you." you go to the pharmacy, and there is a big horse trough full of, uh, PILLS. all kinds and all colors, all mixed up. You need 40, they scoop up 40. Whatever they scoop, you get. if God's on your side, there might be two of the ones that are specific to your disease.
that's where comms is going. it's up to your software to sort out the little shield-shaped pink/beige 20 mg jobs you need from the box of PILL. it's a smart scoop that gets your RIGHT pills from the pile of PILL. since computers are cheap and fast and can recognize the SNAP header, it all works out. that is why VoIP has a hundred-to-one cost advantage over traditional telco, even without the tax issues, and why it eventually will rule.
if this is supposed to be a new economy, how come they still want my old fashioned money?
The telcos will have no easier a job monopolizing the IP phones, or the government tapping them, than the RIAA is having banning pirated music, and for exactly the same reasons. You can't tax air.
What a silly question. Verizon owns the copper. The ISP you're getting your DSL from is leasing the pair and a slot in the DSLAM from Verizon. It's not like they're totally cut out of the action by VOIP. If POTS dies out (which I doubt it will), they'll simply shift their business model to one of "last mile broadband provider".
If a job's not worth doing, it's not worth doing right.
This is, by far, the greatest comment I've ever read on slashdot.
** Applause **
Even the mobile phone manufacturers are picking up on this trend. By building Wifi into mobile phones we can set the device to use the lowest cost method to make our calls. When a hotpsot is available, use VoIP and drop the cost to next to nothing. Simple economics.
This is not to say the technical hurdles aren't formidable. But hey, my Grandpa publishes web pages and who could've sold me on that concept in 1994?
Life is a tale told by an idiot, full of sound and fury, signifying nothing.
William Shakespeare
The article was very informative, and something that I might like to try in my spare time, but one major obstacle stands in my way- the terms of use that I have to agree to with my cable company to get high-speed access. And before you say "get ADSL", I would love to, but the POP is too far away, and the phone company says they are not planning any new ones in the near future. I would love to supply my area with wireless access, but it would violate my TOS, and I am sure Comcast would LOVE to sue me if too many people started dropping their high-speed access for mine. Just my 2cents...
LOAD "SIG"
RUN "SIG"
Public Payphone
But really, I don't envision myself not having a multifunction gadget / cellphone / camera / oggplayer / moblogserver / egobooster (that will let me call 911) even if I have VoIP...
Time will tell
I wish I could filter out the annoying Pickens articles...
He focusses too much on the technology and not the logistics of doing something like this. To me, it would have been more effective if such an article came from someone that had success in building a business that had to focuss on customers as much as such efforts would.
You need to worry about billing, customer service, accounting, marketting, reliability, security, the staff to support all that, etc, etc, etc.
What you're more likely to see is a bunch of 69.95 boxes collecting dust and people trying to figure out why they aren't making moeny like their friend down the block is.
Open Source Java DAO Generator
Read it, it's funny.
Cell phone are subject to bandwidth limits too. Each of their towers can only handle so many calls before it is saturated. During certain parts of the day, my phone constantly gives "Network busy. Try Call Later."
I do agree with the bandwidth problem with VoIP networks. Cringley didn't write about the issue of where are you going to get this much bandwidth. Or what about the issue of reselling your bandwidth and your customer service agreement from your providers? Before you start getting all excited about Linux routers and VoIP, think about the bigger issues.
The new campus/small city footprint of 802.16 should be compelling for certain applications. There's not too much geographic coverage for 802.11, and it seems like there never will be.
By the way Cringely, what's the deal with the PCs replaced mainframes stuff? Where have you been? Mainframes are one of the fastest growing segments of the industry. (PC sales have declined of late.) The "hit" mainframes took was because everything became cheaper. (PC prices have collapsed ten-fold over the same period, and that's with the Windows monopoly propping up prices! IBM stopped building exotic and very expensive mainframe cooling systems for bipoloar, and that had an awful lot to do with the price drop as well.) Mainframe unit and capacity sales never declined, and now even the revenue is increasing in that market. Why? People discovered that quality-of-service matters for many applications. Analogy: President Bush and the Pentagon don't use the standard POTS network. It's not secure enough for them. And Visa ain't handling its credit card approvals on a Dell running XP.
This discussion always amuses me.
In our region last week, somebody cut a fiber line. Guess the first thing to go out.... Cell phones. Cell phones rely heavily on buried cable.
So wireless VoIP sounds interesting? Each base AP will need a decent connection to the internet. Guess who will provide that. The telephone company.
And when I say telephone company, what I really mean is the bandwidth provider. The company that provides the last mile for content delivery--be that content voice, data, video, music, or whatever.
So in that sense "telephone" companies are dying fast. But most will make the transition to "bandwidth" companies very lucratively.
*sigh*
:-)
First off, the minute you go from a VOIP endpoint to the POTS phone system (you know, to route calls to legacy landline equipment) you are then classified as a phone company. This is where the tarrifs come in. This might not be the case if you just went from VOIP to Cellular, not 100% positive.
Next up, while the Vonage/Packet8 endpoints work well, it can be a pain deploying a reliable VOIP network. Qualtiy of service is a must, because a large email with an attachment can totally take out audio in one direction for a few seconds.
VOIP is neat, I think it will seriously cut into the long distance profits, but *I* firmly believe wireless phones are more of a threat to landline POTS service. I think the phone companies need to replace the legacy ESS5a switches with something newer, capable of dropping 50mbps to each copper customer.
Personally I plan to move my phone lines to a message rate service, it's incoming only landline. I believe it is about $10 a month. This supports the excuse to have a PBX at home
Southeastern Virginia REPRESENT!
I could never pick up a reception on my cell phone in my house, or in a lot of other places masked by hills.
thank God the internet isn't a human right.
"Now how is Verizon going to compete with that?"
You see there are these things that companies buy called laws....
Jaysyn
There is a war going on for your mind.
Even though he mentions Linux as a possible solution in providing DIY telcos, it doesn't automatically make his points legitimate, much as the editors would love you to believe. It appears that yet again he is off in lala land.
I just got vontage yesterday, VOIP. I have a cable modem and the connection was flaky. I was a bit disapointed, it was staticy and had a good 1 to 2 second delay. It was like a conversatoin from the US to Europe with the satalite delays. We need to look at the last mile problem and have 1 to 10MB connectoins rather then 128k. There is still dial up and there is no way in hell you can do VOIP wiht dial up. We need to look at getting cable companies to give faster speeds and make it static rather then bursty data at 128 to 512kb.
That fokker still owes me a mug from dirt I sent him way back in '89!
(we had RS/6000's, super fast boxes at the time, and I was dishing some minor details)
It's important to note that Sveasoft is not the only group out there extending the abilities of these boxes. Linksys/CISCO releasing the code has allowed many groups a crack at modifying these systems to their hearts content.
Wifi-Box is incredably stable, and offers many options, taht are also being extended.
OpenWRT aims to be very light, but allow you to add packages to customize anyway you want.
More info on the router can be found at Seattle Wireless.
Ironic that I use the local telco company for DSL, and my wireless router can be used to take away business from them. ;)
Remember, Slashdot does not have a -1 disagree moderation, and no, troll, flamebait, and overrated are not substitutes.
I'm not up on VoIP protocols, but the codecs used for GSM and CDMA protocols use anywhere from 9.6kbps to 14.4kbps, IIRC. Is VoIP doing something else (say, to make up for the lack of a circuit?)
Hello? I said, can you hear me now? Hello? Damn...
I think the end result of this is pretty obvious. We are going to keep moving critcal communications onto
the internet, critical communications for Joe Sixpack, so the regulation is going to come in at the ISP's level.
ISP's are going to be required to provide five 9's of availability, just like telephones, and there
will be legislation, regulation, and taxes. Once that is established, you will be able to choose to
use the regulated telephone network with 911 access, for an additional tax, or use AN unregulated network
for free.
I read in a technical newspaper (Ingeniøren.dk) that the European telcos are slamming the brakes on anything resembling IPV6. Reason: IPV6 means QoS, and QoS means decent quality VOIP. Bye Bye primary source of income...
10 ?"Hello World" life was simple then
Cell phone.
Get one of those uber-cheap "pay only when you use it" phones as an emergency line. Keep it charged and turned off.
Hell, most cell phones will allow you to call 911 even when there is no active account on the phone!
-Charles
Learning HOW to think is more important than learning WHAT to think.
This is the perfect case for having a regular cell phone and the VoIP line, but no POTS line. You can use your VoIP connection for most of your calls. If you need to call 911, use your cell phone for that. E911 is not totally here yet, but almost all new phones have GPSes in them, which send your coordinates to the emergency services.
If you have a power outage, your VoIP vendor can just route calls to your cell phone automatically. You call your power company with your cell phone and get back to business. Vonage does this already.
On a side note, I think that the Cable nodes should have some sort of power backups like the phone system does--even if it is only good for a few hours. This would break the perception about the usefulness of the Internet during these types of situations.
My wife and I have cell phones, a POTS line for the house, and a Vonage connection. She uses the cell phone more than the house line, providing she actually had the cell phone handy. So far, Vonage has been great. I have not had enough experience with Vonage yet to think about disconnecting the POTS line yet, but eventually we might.
We also have 802.11G that I use throughout the house, and I can weakly pick up other 802.11 signals from other houses. However, the WiFi signals are not strong enough, or reliable enough for me to depend on them for phone usage. I cannot even play a good game of WarCraft or UT2004 over the WiFi, because the packets are too jumpy. Perhaps with some of the token handling modifications that were mentioned in the article this might be better, but I'd have to wait and see.
No Not Again! Its whats for dinner.
Doesn't SCO own VOIP?
I'll try not to make this OT ...
... not a bad little 802.11b router. I figured today I'd try hacking it a bit, see what exactly it is.
... a UK site says my router has a DNS proxy and cache, something I've seen nowhere else. I used nslookup and dig, and sure enough, it answers dns queries. I also can tftp into it. (No idea names of files tho).
.img file for the firmware. It doesn't look like any format I'm familiar with... the linux "file" command calls it a "MS Windows TrueType font" ... well let's run strings on it ... hmm only one word shows up twice at the end of the file "sErCoMm".
I'm insanely jealous that I don't have one of those WRT54G routers. I have a netgear mr814v2
My interest was piqued because I found services (locally) running on the router I was unaware of
So this prompted me to take a peek at the
So I head off to Sercomm's site... and lo and behold they make wireless routers! Namely, I think my MR814v2 is just a rebadged Sercomm IP706SM. I know this comes as no surprise, many pieces of hardware are just rebadged and sold under a brand name. But look at the specs, they're identical! Right down to the dimensions, the Netgear router is only a few milimeters off.
So this is where my hacking hit a wall. Think I might go home and take apart the router and see for myself. Or just sell it and get a WRT54G. (Hey my birthday's next week, you never know.)
FLR
See http://www.voip-info.org/wiki-Asterisk+bandwidth+i ax2
Running QoS on the router and using a something like ILBC you can get 7 or 8 calls before it gets messy on a 256k upload.
OTOH for most home systems the most you'll have to cope with is about 2, so you can use ULAW and get the quality.
For me, when the power goes out in our neighborhood, it doesn't matter that I've got my VOIP device connected to a UPS. When the neighborhood loses power, my broadband internet loses connectivity. No internet, no phone. No phone, no way to call the power company to report an outage. It gets worse if you imagine someone needing emergency services (e.g. 911) during a power outage.
Most people (that is, most people who would consider a VOIP service) have a cell phone. This is your back-up.
Some cell phone users are getting rid of their landline phones altogether. I think it's a bit early for that, but a cell phone + a VOIP phone is a very nice combination.
Kaa
Kaa's Law: In any sufficiently large group of people most are idiots.
Especially considering Sveasoft's past entanglements with open source and the GPL.
I talked about something like this in this post on another story a week or 2 ago.
There were some legit problems people brought up, but I think they could mostly be tackled.
Apparently the key is getting linux to work with "winmodems" that have had the features I described for a very long time.
This is the future...bet on it.
Sean D.
"Hmm. I am to metaphor cheese as metaphor cheese is to transitive verb crackers!"
For this technology, every "Mom and Pop" will have to want to get involved and then actually GET involved (read: get educated on this technology). Right now, people have a reliable, relatively cheap, guaranteed service (PSTN). For a long time to come, everyone will have to have a local telco service as well as a VoIP service as they wait for the others around them to adopt (think migrating to IPv6 from IPv4). People that live around parks, or downtown cores etc will have their internet connections milked constantly while other peoples connections will barely be used. People in rural areas are out of luck unless local municipal/county governments fund WiFi towers to connect highway runs and even the people that live a country block from eachother (farm country - you people still want cell coverage out in the boonies don't you?). There will still have to be some large corporation doing all the addressing on the routers and at least some network monitoring -- maybe this is where IPv6 will make its debut. Again, people in core area's will need more than a small router to handle all of the traffic. These area's will all have to have UPS/lightning arrestors installed either in the basement of the apartments or in the apartments themselves because you can't have a whole sector dropping because the power goes down for 2 minutes. You will still need a local ISP or Telco to carry all of the internet (long distance) traffic - the rates will rise on data if voice disappears. The ISP and the telco will be merged so if a large sector of people in a downtown area are all on Verizon DSL service and they have a network problem, now you have phone as well as internet outages. DoS'ing a router from the internet will take out phone service now as well.
Hmm... thats all I can think of right now, but I'm sure there are many other issues that should be rectified before this technology even has a chance.
You create your own reality - Leave mine to me.
Regulations. Lots of them.
Standard G.729 which is most common codec is only only 8kb/s + 1/kbs for headers etc. Only G.711 is 64bit and that is used to transport fax or modem over ip since its not compressed.
Have you ever been to a turkish prison?
Wait a minute...with all the buzz about cables companies and DSL providers capping bandwidth and having open-ended ability to kick your butt off for basically any bandwidth using infraction (see 2.C in the terms) you don't think for a moment, do you, that these cable companies wouldn't kill this initiative? And that the RBOC's wouldn't eliminate this as an opportunity by limiting the use of their DSL lines?
We've seen how the Internet offers cheaper, more diversified communications - at the price of quality *cough World Wide Wait cough*. Telephony might flourish with the growth of VoIP over protocol networks like FreeWorld Dialup. But how can we ensure services like 911 are reliable and universal? So far, we've done that with regulated monopoly phone companies, which are more manageable than a decentralized VoIP P2P system. How can we keep the required services, while expanding beyond them?
--
make install -not war
PBX Vulnerability Analysis: Finding Holes in your PBX Before Someone Else Does
Its a 60-page PDF that covers all of the features included in most PBX's that can be exploited and/or manipulated.
If you're a security engineer I HIGHLY recommend it. Even if you're just the company's Network Admin that's also responsible for the PBX, check it out. What a cool line on your resume? How about "Reduced company's monthly phone bill by XX% (thing BIG) via PBX audit" Nothing says "You're Hired!" better than that.(Hint: turn off automatic-forwarding by default to start. People config their work phone to forward to their house over the night/weekend, and their long-distance friends just call the company's Toll Free number and get routed to the employee's house. They chat, company picks up the tab. Also look into setting up SMDR or CDR (google for it) on the PBX, connect a serial cable to the switch, and do some simple call accounting to determine who's doing what on your phone lines all day.
The tin-foil hat wearers are going to flame me a new one, but really this is just like sniffing your ethernet traffic to see if people are goofing off on the web all day. Plus, you're not actually LISTENING to whats said on the calls, you're just logging that extension x1234 called 978-555-1212 fifty times in the last month. Maybe that's a legit call, maybe its their wife/husband and they're goofing off. Or hell, maybe you figure out that you're under-utilizing your trunks, and can get rid of that extra T1 without causing inbound calls to get busy signals, or outbound calls to not get an outside line. Tell the PHB's to roll the first month's savings into your bonus plan :-)
And, as a turnaround question, have people found that their PBX experience translates into small-mid scale VoIP gigs, and if so, how? With a decent amount of PBX (non-voip) switch management under my belt, is it worth doing the WRT54G VoIP setup for the experience, or should I just try to find a job at a company that's doing 'real' voip?
"It prevides enhanced 911 services or it gets the hose again!"
So current telco's will focus soley on becoming an ISP (kinda been the trend since, umm '95ish). Sorry, but verizon isn't going to die that easy.
Why do I need Vonage to use VoIP? At present, the only reason is that Vonage can route my calls from the net to the PSTN and verse visa. But as more people start using VoIP and fewer use the PSTN, then the need for Vonage will gradually vanish. All VoIP will need is a directory mechanism for user lookups. After that, VoIP is no different than http, ftp, smtp, etc. Its just another protocol and anyone can run it without needing anything more than access to the net. Vonage is like a parasite that can't afford to kill its host because then it would kill itself.
FreeSpeech.org
While many posters have pointed out that if VoIP ever becomes predominant, onerous reliablity demands will be imposed upon them, I say bring it on! We need to develop an internet architecture that is seriously robust and fault tolerant, and anything that gets us closer can't be all bad.
Tierce
Who sponsors your feelings?
One way to handle this problem is low bandwidth codecs on the cable/DSL links and for your lan links you can go full out PCM Alaw/Ulaw.
Jitter can be a problem on unreliable links, but for the most part VOIP can be done right. When it's done right it's a Good Thing.
You'ld think the UPS (essentially a battery backup for those of you unfamiliar) would give enough power to handle a call to the Power Company in the case of a power failure, though. I've got 45 minutes backup power on mine (more if the monitor is off) if the power goes out, at which time I can still use my computer and internet connection (DSL, so if the phones go down, I can't connect). The real problem would be if that battery backup died and then the emergency happened. I'd have a solution, since I intend to get another UPS with a longer backup time within the next week, but most people wouldn't.
The problem with cell phone, in this case, is that it seems pitched as a replacement... or maybe not, it could be a cordless phone replacement.