Modem

How can i instruct PIC to dial a modem ? Can anyone help ?

Thx

You need to tell us much details. At least wich modem model

I have Aztech 56k modem model EM6800-U. serial port. Year 2000.

i tried sending ASCII ( modem command such as "atdt 56306574" ) through serout command but modem just doesn't respond. The modem not even dial the number.

I haven't dealt much with modems but have done a fair amount of serial interfaces. It might be that you need to utilize some of the control lines like RTS/DTS.

Check this page for the concept.

http://www.easyvitools.com/articles/...onedialer.html


I believe you can get the idea from there.


--------------------------------

checked the modem ctrl line, nothing wrong with the signal.
can it be the modem need special code other than AT command ?