wavecom Fasttrack gsm modem M1306B not responding

Dear All,

I was using wavecom gsm modem USB M1306b in one of my project for sending sms. Which was working fine. Suddenly it stop responding to any command. While taking it on hyper terminal it gives "?" character for any key press. So I request you please guide me to understand and resolve this issue.

Regards,
Ninad.

Check the baudrate and handshake settings!

Typing in "AT" will give you the "OK" -response when set correct.

// Per.