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Re: SMS
- From: Nathan Ward
- Date: Tue Sep 22 19:30:06 2009
On 23/09/2009, at 4:29 AM, William Herrin wrote:
On Tue, Sep 22, 2009 at 11:59 AM, Scott Berkman <scott@xxxxxxxxxxxx>
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?
That is shocking.
I have had a fantastic track record with a Maestro 100 GSM modem with
a serial interface.
One of my customers has one powered on for about a year now, and it's
never missed a beat.
They apparently support TCP/IP and the datasheet mentions something
about email, but I have no idea what that really means, and don't
really care so much.
I send it standard GSM AT commands, and it just works.
I've done the whole old nokia handset thing in the past several times
and it's *ok*. Now though, I say don't bother, this thing is maybe a
couple hundred dollars, and saves you oodles of time fooling around
making it work reliably.
--
Nathan Ward
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