Hi I have had the same problem, mobiles are sometimes to fast

I use the GSM engine TC 35 from siemens they can run Normaly text but run to fast for a pic too.

so put in a larger crystal (8mhz)

set up your programmer to HS

if your settings is 9600 chose 2400 baud because at 8 MHZ it goes to faster
I use serin and a timeout seqenze so i can find the end of the message

If your modem can deal with slower speed auto matically
try to send some AT AT at a lower speed 1200 Baud

You won't fell the differnce since SMS messages are so short.


Best regards Mikkel Holm
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