Aaron D. Osgood AOsgood at
Tue Sep 22 20:58:21 UTC 2009

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 at

Introducing Efficiency to Business since 1986.

-----Original Message-----
From: William Herrin [mailto:herrin-nanog at] 
Sent: Tuesday, September 22, 2009 12:29 PM
To: Scott Berkman
Cc: nanog at
Subject: Re: SMS

On Tue, Sep 22, 2009 at 11:59 AM, Scott Berkman <scott at> 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
> 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

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.

Bill Herrin

William D. Herrin ................ herrin at  bill at
3005 Crane Dr. ...................... Web: <>
Falls Church, VA 22042-3004

More information about the NANOG mailing list