It looks as if you've covered the standard communications settings but what about ANSI emulation according to spec.? Is it possible that Hyperterminal is doing something in that respect that you aren't? I don't really know what is meant by that phrase but it might be worth looking into (although personally I'd check out the module valdez suggested first).

--Jim

In reply to Re: Problem with rs232 GSM device by jlongino
in thread Problem with rs232 GSM device by rrozman

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