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GSM modem / TAP notification / etc.

bmurching over 13 years ago

Has anyone setup alerts using a GSM modem, TAP or otherwise, at least in North America? Suggestions on hardware / carrier? It seems that the TAP interface is going away, with GSM modems being the preferred solution but I can find little guidance on either. I would like to use a notification medium that bypasses my regular Internet ISP, which is more prone to outage issues than the phone system.

0 laffen over 13 years ago

We use the gsmsendsms.exe from www.pxh.de/.../index.html (there is an old windows binary available). The modem is just a PCMCIA card with a PCI-E adapter, Windows sometimes gives it a new comport after every reboot Tested with USB dongle, no problems.
Created an external process which is the action for the alert with these command line parametres:
failure: -d com1 <number> "%monitorname% failed"
revoery: -d com1 <number> "%monitorname% recovered"
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0 erharj over 13 years ago

We have a 2003 server with a standard, actually older, US Robotics modem in it, connected to a standard POTS line and then have an alert setup in ipMonitor that sends TAP messages to a Verizon BlackBerry phone and it works fine. I know Verizon supports TAP, not sure about other Cell carriers. See XML of our alert below...I edited out the phone number of our phone(pagerid), but the 'carriernum' is a standard Verizon TAP phone number that we use in the US. Not sure if this helps you or not...
<alert>
<id>559617316253</id>
<typeid>1000003</typeid>
<parentid>555322348957</parentid>
<nv>
<comm>
   <port>COM3</port>
   <initstring>ATE0Q0V1X3F1&C1&D2</initstring>
   <dialstring></dialstring>
   <highspeed>true</highspeed>
</comm>
<ui>
   <name>Page US BlackBerry 24x7</name>
</ui>
<pagerid>(Our Verizon BlackBerry phone number goes here)</pagerid>
<carriernum>18668230501</carriernum>
<pagerpass></pagerpass>
<dialtries>3</dialtries>
<dialdelay>30</dialdelay>
<usetapi>false</usetapi>
<baud>19200</baud>
<bits>7</bits>
<parity>Even</parity>
</nv>
<availability>
<monday>111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111</monday>
<tuesday>111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111</tuesday>
<wednesday>111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111</wednesday>
<thursday>111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111</thursday>
<friday>111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111</friday>
<saturday>111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111</saturday>
<sunday>111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111</sunday>
</availability>
<content>
<good>
   <enabled>true</enabled>
   <text>%monitorname% is back up</text>
</good>
<bad>
   <enabled>true</enabled>
   <text>%monitorname% is down</text>
</bad>
<info>
   <enabled>true</enabled>
   <text>%monitorname%
%generatedcontent%</text>
</info>
</content>
<tags/>
<alertmap>1-</alertmap>
</alert>
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0 tap_gateway over 11 years ago

Sending notifications with TAP and a dialup modem is the most reliable way to do it. This configuration is out-of-band and works even if your network is completely toast. As erharj mentioned, all you need is a modem and POTS line. If your cellular carrier doesn't support TAP, there is a service called TAP Gateway at www.tapgateway.com that provides a TAP to SMS/Email Gateway for all cellular carriers, even Google Voice.
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