Hello:
In my program I send/receive SMS and send/receive voice calls with a PIC
with a UART and a maxim chip to interface the mobile module via Rs232. It
looks just what you want to do. To comunicate with the mobile module (for
example a siemens tc35 terminal), I am using AT commands in text mode, so=
 is
as simple as sending characters with a UART.

-----Original Message-----
From: Niklas Wennerstrand <niklas.wennerstrand@TELIA.COM>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: s=E1bado 23 de febrero de 2002 16:35
Subject: [PIC]:m2m mobile phone


>Hello Howard,
>You could send and recive simple SMS trough a mobile phone.
>Search on Google on SMS, Hayes, AT+C, GSM07.07 and GSM07.05. Standard
>comunication to interface to mobile phones.
>Yes you can do it with a PIC and RS232.
>
>Niklas
>
>-----Ursprungligt meddelande-----
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>F=F6r brah
>Skickat:        den 23 februari 2002 12:22
>Till:   PICLIST@MITVMA.MIT.EDU
>=C4mne: [PIC]:m2m mobile phone
>
>Hi all
>Has anyone done data transfer over a mobile phone in Australia?
>I've had a look and Nokia and Ericsson make a gadget that I presume acts
>like a mobile phone, but the transmission data (voice or tones)is
>accessable via RS232.
>I was wondering (probably just tooooo simple) can you plug in a SIM
>card, and it becomes a modem on the mobile phone network?  Could one
>attach a PIC with a UART, and RS232 chips (Maxim etc) and get it to work
>just like a radio link?  All I need to do is send a couple of simple
>commands and get some simple results back.  I anticipate a few bytes
>both ways.
>Or am I right off the planet?
>Any pointers to informnation would be appreciated.
>Regards
>Howard Simpson
>
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