GM862 Hangs after sending an email

Hi eveyone,

I can’t get the GM862 out of the data mode. Once I successfully send an email, I can’t send anymore AT commands. According to Telit manaul I am supposed to send +++ and wait for 2 sec before I get an OK back from GM862. I wait for 2 seconds, send +++ and wait 2 seconds buy I can’t get any response out of the GM862. Has anyone had this problem before? I have tried numerous methods and non has worked. Any insight will be appreciated.