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Alternatives to TAP for Outage Alerts?

anton[1452] asks: "AT&T Wireless has discontinued TAP dialup access to text messaging. I have used this for years to send alerts in the event of network outages. The alternatives they offer are not free and worse, require network connections - making them useless for my needs. Does anyone have a better way to do this without resorting to carrying a separate pager?"

47 comments

  1. What about... by Tyrdium · · Score: 1

    What about the AT&T Relay? If you used it through dialup, would that work? Alternatively, what if you connected a cell phone to the computer via an X-JACK (or whatever it's called) connector, and uesd that for text messaging?

    1. Re:What about... by happynut · · Score: 1
      I just went and checked out the site.

      The relay itself is a java applet, which makes scripting it pretty hard.

      I got the feeling that the original poster wanted an automated way of calling for help...

    2. Re:What about... by goeldi · · Score: 1

      what if you connected a cell phone to the computer ... and uesd that for text messaging? the problem is, that you only can connect either the power or the data cable to such a phone. The only way to use it would be, if you have an ir connector on the pc. Then you can plug the power cable to the phone and send via ir.

  2. At&t prepaid phone? by Stubtify · · Score: 0, Offtopic

    Could store it away for a rainy day and only use it when your network fails. Wouldn't cost much at all.

    1. Re:At&t prepaid phone? by maunleon · · Score: 1

      Yeah, that works for all those planned outages, but what about those unplanned ones? Wouldn't you have to carry the phone with you all the time?

    2. Re:At&t prepaid phone? by Jellybob · · Score: 1

      Is that such a bad thing? If you've got a team, just get one phone as the "on call" phone, and whoever has the joy of coming in at 5am to fix the server carries that with them.

    3. Re:At&t prepaid phone? by Webmoth · · Score: 1

      I think he's looking for something automatic on the sender end. A pre-paid cell phone isn't going to help much.

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  3. independent monitor by monkeyserver.com · · Score: 1

    It's a little less elligent, but I use an independent monitor. Scripts running on a site that is hosted independently monitor the availability of my network. When there is a problem they just send emails to the phones that need alerting (basic sms messages). All the phone companies that I have tried support sms via email.

    You could just get a dial up from juno or something and do that. It's easier to just have sms messages sent to a cell than carry multiple gadgets.

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  4. Maybe I'm just stupid, but... by greenhide · · Score: 0, Interesting
    Unless TAP behaves very differently than normal text messaging, shouldn't these instructions work (taken from AT&T's Text messaging howo):
    Address the e-mail to the 10-digit wireless phone number followed by @mobile.att.net. For example, if the phone's number is 206.123.4567, then the e-mail address is: 2061234567@ mobile.att.net.
    Assuming that TAP works the same way of course.

    If not, obviously I'm some kind of idiot.

    Even so, it seems like it makes a lot of common sense to allow direct e-mail to text message.
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    1. Re:Maybe I'm just stupid, but... by greenhide · · Score: 1

      Never mind; I see you don't want to use a network connection, so you couldn't send e-mail.

      Of course, you could dial into a *nix server and then use sendmail; you could send the message out that way...

      Without disclosing any sensitive info, exactly why can't you use a network connection?

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    2. Re:Maybe I'm just stupid, but... by gantzm · · Score: 1

      Because the message might just be that the network is in fact non operational?
      Just a guess!

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  5. Wtf is tap? by DA-MAN · · Score: 0

    Not sure what AT&T Tap was, and can't find out since it is now discontinued. More importantly you left no info about your requirements? Sounds to me like you just want to be able to txt message a few cell phones, I don't see why you can't just go online and do it. I use to have AT&T Wireless Services and wrote a quick curl script that used http://www.mobile.att.net/messagecenter/ to send me pages. As I recall it was a five line shell script, not too hard to replicate. I guess not having info about tap makes it really hard to understand your specific situation situation. Please provide more details!

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    1. Re:Wtf is tap? by Anonymous Coward · · Score: 1

      He wants to do it without network access.

    2. Re:Wtf is tap? by Anonymous Coward · · Score: 0

      Oh, well he sure is a cheap son of a bitch isn't he?!?!

    3. Re:Wtf is tap? by kelleher · · Score: 1
      Next time google before posting:

      http://fy.chalmers.se/~appro/SITE/IXO.TAP.protocol .html

      TAP is what we used before web pages (and you youngsters) existed...

  6. Re:wow by Anonymous Coward · · Score: 1, Insightful

    Yup, please see "WTF is TAP" for further elucidation.

    See, the problem here is unless there's someone else with the poster's exact problem (possible, but doubtful -- most people are trying to do everything they possibly can over a network connection, looking forward to the day they can iShit) -- noone is going to know what the heck this person is talking about. So until the original poster puts a little more detail into explaining their needs and their system, we'll probably all be in the dark and won't be able to help them.

    I mean, the real mental stumbling point is this: if they've got a computer that can perform a modem dialup, why can't that computer just send a frikkin' e-mail, which pretty much every messenging service in the whole world responds swimmingly to?

  7. Just use dialup by Klaruz · · Score: 1

    Make your monitoring system call a dialup isp instead of the tap gateway. Then you can send email to the phone without your local network being up at all.

    It's pretty easy to set up dial on demand with a timeout so you're not connecting and disconnecting from the isp every 3 minutes. Then you're still able to drop your connection when you don't need it for more than say, 15 minutes.

    1. Re:Just use dialup by kinema · · Score: 3, Insightful

      The problem with email gateways is you have no way of knowing for sure if the email was recived, understood, acted upon and the SMS message was acutally sent.

    2. Re:Just use dialup by DA-MAN · · Score: 1

      Send more than one, have it send one every five minutes until it recieves a message at a specified e-mail.

      It's not that complicated.

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  8. Okay, now I get it. by greenhide · · Score: 1

    When I read "network outages", I assume the poster meant computers/servers on their network going down. Now I'm guessing they meant network routers, judging by this similar posting. It looks like before you could dialup directly into AT&T's system, thus avoiding the need to use a network connection in the hopefully rare case that no network connection is available.

    My suggestion is to set up a dialup account that gives limited text-based access, so that you can send the alert messages through that system. So long as the dial-up company is different than the provider of the routers' connection, that connection should stay up. And if both ISPs are down at the same time, that probably means you've got bigger problems than just your own network being down. I don't know where you'd start your search (well, I mean of course google obviously, but beyond taht...) but I'm sure you could easily find text-based internet access for around $10/month, which isn't all that much. Also, you'd have access to a remote machine you could use to test latency and other network availability issues.

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  9. GSM or GPRS modem by psyconaut · · Score: 3, Interesting

    Attach a GSM/GPRS modem to the host that sends out the messages! Not only can you then send SMS, you could also conceivably get an IP connection to the send email through another service....which narrows down the issues with SMS latency.

    You *do* have a phone that can get SMS, don't you? ;-p

    -psy

    1. Re:GSM or GPRS modem by happynut · · Score: 1
      Alas, SMS to phones just isn't as reliable as a pager; I found that here in the SF bay area there were many, many times when pages came through, but SMS messages did not.

      SMS is nice to have, but if you absolutely, positively have to get a hold of someone, they really need a pager.

    2. Re:GSM or GPRS modem by Zocalo · · Score: 2, Informative
      I know that SMS is supposedly not as reliable as a dedicated pager, but I've done exactly was you suggested and never lost an alert. Latency was not an issue either, I don't think it ever took more than 30 seconds from SMS generation to delivery. Then again, this was in the UK and not the US, so your telco mileage may vary and having a facility to resend the SMS if the alert is not acknowledged within an arbitrary time may be a good idea in any case.

      We used an old Sun Ultra 5 acting as the "base station" and Kannel to talk to a mobile phone plugged into the serial port. That's basically it. We could generate an SMS via email or directly scripting Kannel, depending on what we were trying to do, and also provided a webform for human use.

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    3. Re:GSM or GPRS modem by Hecatonchires · · Score: 1

      Poor americans and their dearth of reliable SMS. /me texts all the time. texting good.

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  10. Out of thin air.. but... by maunleon · · Score: 1

    Buy a cellular telephone subscription, write a java (or whatever the phone supports) applet to interface with your monitoring hardware (insight manager or whatever it may be), and have the phone send an SMS message in case something goes down...

    Or even better, use the Nextel/Verizon walkie-talkie feature.. nothing like a syntehsized voice announcing "Help, router ABC has fallen and it can't get up" to your entire support group.

    1. Re:Out of thin air.. but... by duffbeer703 · · Score: 2, Funny

      How about developing small Lego Mindstorms robots to repair teh network outage? Then you wouldn't need to page anyone!

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  11. ATT goes to IP by littlerubberfeet · · Score: 1

    I remember hearing some story about ATT going completely digital and dumping all their analog equipment. THis could be the first manifestation of that change. Anyone else know anything about this?

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  12. EFI Unimobile by More+Trouble · · Score: 3, Insightful

    In my reading, it sounds like AT&T has outsourced their TAP interface to EFI Unimobile. See the EFI Unimobile page on the subject. I guess it will cost, while AT&T's direct TAP number was probably free. However, it does sound like it will still be useful for sending alerts about your network.

    :w

  13. How about... by hackwrench · · Score: 1

    using voice?

  14. Not the same network by hackwrench · · Score: 1

    The network he'd be sending the message on is not the same network that's down. More likely it's a problem of signing everyone up for accounts on the SMS network and then getting those accounts to work with their phones.

  15. What's TAP? by Roadmaster · · Score: 3, Interesting
    TAP is a protocol that enables one to connect via modem to a special dialup number and interface directly with the pager service. In essence this allows one to talk directly with the pager system at AT&T and send messages from there.


    Why is this important? assume you'd normally use the pager provider's web page to send messages. This is very easy to script using curl or several other tools. However, what if the failed service is your internet connection, router or something else that prevents you from reaching the web server and sending the message this way?


    This is where TAP comes to the rescue, since we bypass the network and require only a modem and a working, standard phone line. If both the network connection and the phone line failed at the same time, or worse, the provider's paging system is off-line, then it means a major disaster has struck and any reports about network condition are most likely futile.


    My recommendation would be to get a cell phone that can receive SMS and modify your monitoring scripts so they use your cell phone provider's web page to send messages. Then get a dial up access account, one that doesn't depend on your network being up, and configure things so that, if your main network link is down, your scripts first start a connection on your alternate dial up account, in order to reach your provider's web page and alert you. Another option, one that would only depend on the POTS and your cell phone being operational, would involve rigging the Festival voice synthesizer with mgetty+voice to enable the system to call you on your cell phone directly and deliver the failure message by voice. Still, I think that the redundancy built into the first solution is good enough.

    1. Re:What's TAP? by DA-MAN · · Score: 1

      Monitor your network connectivity externally, pay for a cheap shell account that will run bigbrother or something. Have that page you if the network goes down. In addition have your network page you via ph#@mobile.att.net e-mail addy, if message != network is down. Or you can get a cheap isp and have your box @ work dial into your isp and if message == network is down, it will dialup and e-mail you via that connection.

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  16. Go completely analog by TheSHAD0W · · Score: 4, Funny

    Use a voice modem and call the person's cell phone.

    "Help! Help! The power went out!"

    "Help! Help! Someone is stealing the router!"

    Hopefully, your techs won't think it's Stephen Hawking who needs assistance...

    1. Re:Go completely analog by SuiteSisterMary · · Score: 1

      Seconded. On Windows, you can do this with the unimodem drivers; it's pretty standard.

      On linux, you're looking at vgetty to do the voice modem stuff, and something like festival to do the speech synth (if you want dynamic messages; if you just want to pre-record a bunch of .voc files and spew them out to the modem, that works too.)

      With vgetty, make sure you get a supported modem; USR is generally a safe bet.

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  17. Text Messaging to phones is not reliable by vitroth · · Score: 1
    If you need reliable messaging, you really want a paging service anyway.

    I've seen text messages sent to a phone take over an hour to be delivered. On multiple carriers.

    And according to this article from January, in some places as much as 7.5% of SMS messages fail to be delivered.

    We use SkyTel 2-Way service for our critical paging. They provide delivery status tracking, and since the paging is 2-way, can actually verify that the page was delivered.

    We do use phone messaging as a backup notification method for our staff who happen to live in SkyTel coverage holes, so the AT&T change is still biting us. We haven't found a solution yet.

    1. Re:Text Messaging to phones is not reliable by toast0 · · Score: 1

      well it depends on your paging service....

      i had a pager from smartbeep, it was the greatest thing, $50 covered the beeper and the first years service (w/ tradein of a really old beeper), and it lost about half of the pages i got... never when i was testing it to see if it worked though....

      it was the best thing, cause i didnt' have to lie when i said i didn't get the page until just now :)

  18. Some options by krangomatik · · Score: 1

    Some paging providers still offer TAP interfaces, you may just have to switch paging providers. I think we are currently using a TAP interface to send pages to a 'page group' that has all of the NOCish ppl in it so we only have to make one outgoing call to page everyone with UP/DOWNS. IIRC we worked for a while with a Nextel rep and were able to get TAP access for text messaging to Nextel phones, so if you're a Nextel shop you may want to look into that. I don't know if you can get page groups with the Nextel TAP interface, I seem to remember the paging interface having to make many calls to Nextel to get the page out to everyone.

  19. gnokii.org by frickenhell · · Score: 1

    Welcome to gnokii.org gnokii provides tools and a user space driver for use with mobile phones under Linux, various unices and Win32. For a list of supported makes and models take a look at our FAQ pages. With gnokii you can do such things as make data calls, update your address book, change calendar entires, send and receive SMS messages and load ring tones depending on the phone you have.

  20. Re:wow by PurpleFloyd · · Score: 1
    Although I'm not the original poster, I can tell you the problem with a dialup service: it costs money. When companies are cutting their IT departments' budgets to the bone, a $20/mo connection to a dialup ISP isn't a good idea. Also, if you need to report that someone has deployed a fiber-seeking backhoe and taken a major line down, there's a good chance your backup ISP is offline too. TAP, on the other hand, works as long as you can get an analog dialtone, which will often work even if higher-bandwidth connections are down.

    As for solutions to the problem, I'm going to have to cast another vote for a voice modem and text-to-speech system; this allows you to configure error messages as much as you like, and costs you money only for setup and in an actual emergency. Also, you can get basic delivery confirmation based on who picks up and who doesn't. It might not be the best idea for a system that requires multicast over a large group or contact over a noisy link (voice synths can be hard to understand).

    The flexibility, though, is the real strong point: with a bit of perl, you could probably get the system to repeat back error data. Even better, with a bit more work you could probably set up basic commands via touch tones (press one for hard reboot, press two for soft reboot, press three to restart apache, etc.) and perhaps not have to come in at all.

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  21. Direct to the pager by xrayspx · · Score: 1

    I used to have my system call the pager directly. Add a bunch of waits if your pager has a message like "after the beep, enter your numeric message". Do /not/ use 911 as any part of the message. I must have called 911 about 20 times during initial setup before they called me and said they were sending a car, and I knocked it off.

    Works well though, and just make it a unique numeric page and you'll know exactly what it means.

  22. Text-based internet? by 42forty-two42 · · Score: 1

    I wasn't aware there was a "text-based internet" out there.

    1. Re:Text-based internet? by greenhide · · Score: 1

      I meant shell access. Actually, a lot of ISPs do *not* provide this.

      My brother found this out when he was looking for ISPs that offered shell access, as he was using a IIgs at the time.

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  23. Re:wow by Anonymous Coward · · Score: 0

    The problem is that e-mail and SMS messages have *no* guaranteed Quality Of Service associated with them (see RFC on SMTP for examples). This can be in direct conflict with a SysAdmin teams' QoS guarantees for server uptime and downtime responsiveness. TAP provides for an interface that uses plain ol analog telephone equipment, which has Federally mandated requirements (or at least used to) for uptime and availability.

  24. skytel by hpavc · · Score: 1

    why not something like skytel? i use it and its great via modem or via smtp. especially with the two way paging.

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  25. SprintPCS by jea6 · · Score: 1

    Use sprintpcs. They still offer unlimited free tap messaging. E-mail me for the access number if you have trouble finding it on the sprint pcs developer's site.

    Word of caution: we upgraded to sprintpcs after years of using Metrocall. While I like the convenience of having the cell phone, my messaging range is limited inside buildings in ways it never was with a pager. Very infrequently I wish I still used the pager.

    But, since you've been using AT&T, you should be used to it by now.

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  26. Because the network connection is what fell over by Hecatonchires · · Score: 1

    Can't send stuff down the pipe if the pipe is hosed

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