Normally the modem will send some response to the PIC, right?
For example, if a PIC send an AT command to a analog Modem, it will
reply with "OK" or something similar depends on the AT command.
Then you can check whether the response is what you expected.
If there is no response within a preset timeout period, then you
assume the communication is not established.

Regards,
Xiaofan

-----Original Message-----
From: alan smith 
Sent: Thursday, July 14, 2005 11:04 AM

Sometimes you just need a little help when your brain cramped....
 
Once you send the AT commands to dial to a host....how does the 
PIC see its connected? Generally a text string sent back saying 
its connected typically? Then I assume its just sending data 
back and forth...
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