On Oct 10, 2012, at 2:02 PM, Bill Herrin wrote:
What about finding someplace offsite and setting up a persistent PPP connection with modems (of the POTS variety) between it and home base? Put half the modems there and maybe a low power Atom server with hooks to send alerts like "connection to home hasn't come back after X redials".
I do something similar by having cheap DSL with a provider I don't have any other services with to provide a outside world view of things. I have a POTS line there too that can auto-dial back home if needed.
If we're looking for belt and suspenders solutions (when you lose your primary WAN connection and the cell modems are jammed up...) You could also hitch up an analog modem to a POTS line, and then let your paging software dial your cell/home number. You won't hear anything, but the CallerID will let you know that your monitoring system is *desperately* trying to get in touch :-) Rich Brown richard.e.brown@dartware.com Dartware, LLC http://www.intermapper.com 66-7 Benning Street Telephone: 603-643-9600 West Lebanon, NH 03784-3407 Fax: 603-643-2289
You could also hitch up an analog modem to a POTS line, and then let your paging software dial your cell/home number. You won't hear anything, but the CallerID will let you know that your monitoring system is *desperately* trying to get in touch :-)
You could take it one step further and get an FXO card and put it in a very basic asterisk server. Write a simple program which call be pinged with issue reports as an argument, then pass those arguments to festvox or other TTS application. Output to WAV, convert to GSM, generate an asterisk call file (or write an extension) that calls you on the analog line, and plays you the sound file. I've done this at several employers. It works fairly well - perhaps better than it sounds. If you can get a SIP upstream that will let you set your CID, then send the calls out that route first, and the POTS line becomes a backup - then if you ever get calls from the POTS DID, you know that you have the original problem, plus you know that the connection to the SIP gateway is down. Nathan Eisenberg
On 10/10/2012 5:34 PM, Nathan Eisenberg wrote:
You could also hitch up an analog modem to a POTS line, and then let your paging software dial your cell/home number. You won't hear anything, but the CallerID will let you know that your monitoring system is *desperately* trying to get in touch :-)
You could take it one step further and get an FXO card and put it in a very basic asterisk server. Write a simple program which call be pinged with issue reports as an argument, then pass those arguments to festvox or other TTS application. Output to WAV, convert to GSM, generate an asterisk call file (or write an extension) that calls you on the analog line, and plays you the sound file.
I've done this at several employers. It works fairly well - perhaps better than it sounds. If you can get a SIP upstream that will let you set your CID, then send the calls out that route first, and the POTS line becomes a backup - then if you ever get calls from the POTS DID, you know that you have the original problem, plus you know that the connection to the SIP gateway is down.
Nathan Eisenberg
Correct me if I'm wrong, but shouldn't it be possible to grab SMS via SS7 and feed it into a softswitch or similar like an Asterisk box? All that would be required would be a friendly SMS provider with an "SMS peering" or gateway with the network(s) you care about. I know Verizon was offering a landline VoIP phone that offered SMS long code support a while ago, but I was never sufficiently interested to examine it further. DJ
participants (3)
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Deepak Jain -
Nathan Eisenberg -
Richard Brown