>No, I don't need to send voice. Well, if sending a string is considered sending a voice, then I won't be able to do it. Basically, I just need to send something so it'll activate the voice mail. The cell phone doesn't work as the home phone. The voice mail on it needs to receive a sound. At home, as soon as you reach the voice mail, it'll be recorded even if you hang up.

Now there may be some hope. As Len said, you need specific data for your modem. Once you drop back into command mode, you might be able to tell it to send a string of DTMF digits to activate your voice mail. Got a manual for the modem?