We have a package which uses the MultiTech line of modems coupled with software that will watch files on your network and generate SMS messges (or SNPP, WCTP, TAP, FAX, etc). The underlying engine is a highly customized version of PageGate software from NotePage, Inc. Part of our customization was to defeat the issue you mentioned of "modem suspension". It was initially designed for high volume short messages of a critical nature and is in use in numerous Public Safety (Fire/Police/EMS) communications centers. Often, the Public Safety agency will contract with us to provide and install the system, then the IT department realizes the benefits of using it to monitor their systems. Please contact me off list if you would like more information Aaron D. Osgood Streamline Solutions L.L.C P.O. Box 6115 Falmouth, ME 04105 TEL: 207-781-5561 FAX: 615-704-8067 MOBILE: 207-831-5829 AOsgood@Streamline-Solutions.net http://www.streamline-solutions.net Introducing Efficiency to Business since 1986. -----Original Message----- From: William Herrin [mailto:herrin-nanog@dirtside.com] Sent: Tuesday, September 22, 2009 12:29 PM To: Scott Berkman Cc: nanog@nanog.org Subject: Re: SMS On Tue, Sep 22, 2009 at 11:59 AM, Scott Berkman <scott@sberkman.net> wrote:
Some people use a serial interface to a specific model cell phones to directly send the message over the carrier's cellular network. This is good in the event of isolation of a location from any IP connectivity to a carrier gateway.
The Multitech Multimodem GPRS model MTCBA-G-EN-F4 has an ethernet port. Add a SIM card from your favorite wireless carrier and you can send and receive SMS messages via "AT" commands over a TCP socket. Problem is, it seizes up or otherwise founders every few weeks and has to be power cycled. Has anyone heard of other products with a good reliability record?
I believe there was another solution that involved direct carrier connections, but these are most likely cost prohibitive in most situations.
Any pointers on this would be greatly appreciated. I have a need for geographically redundant access to the same phone numbers in order to send and receive SMS messages. Even if I have to buy a pair of T1s that are 99.9% idle, it'd be worth it. Regards, Bill Herrin -- William D. Herrin ................ herrin@dirtside.com bill@herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004