Slight problem with the SMS control. Only minor one. The code to send SMS messages is working, but for some reason it is being a tiny bit too aggressive with the formatting requirements of responses. As an example, I sent four SMS messages to myself. This was fine. Except for the fact that I actually received about 73 SMS replies. Thankfully they are only a cent eact.

I could not work out if this was a receive issue or a transmit issue. So I sent an SMS to my cellphone. And rather than getting a single message I got seven. Count them. Seven. So it is a problem with transmit. The SMS control is not working correctly detecting a successful send and is therefore sending the same message a number of times. Not too bad at once cent per message (apart from any speed issues) but terrible when it costs 25 cents or more.

This should be simple to work out. Tomorrow I wil do some debugging – putting the serial snifffer online and seeing what the modem is doing. Then I need to write a spec to put a number of these modems on the same computer.