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mychangl
- 25th October 2006, 14:25
How can i instruct PIC to dial a modem ? Can anyone help ?

Thx
mister_e
- 25th October 2006, 14:48
You need to tell us much details. At least wich modem model
mychangl
- 26th October 2006, 14:45
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.
DynamoBen
- 26th October 2006, 16:30
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.
sayzer
- 27th October 2006, 11:58
Check this page for the concept.

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


I believe you can get the idea from there.


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mychangl
- 27th October 2006, 15:21
checked the modem ctrl line, nothing wrong with the signal.
can it be the modem need special code other than AT command ?