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How to detect dialing phone is connected in .NET(C#)?

I want build a small system which is enable to call to a specific phone number from Computer through Voice Modem. I have seen the sample code in the forum(http://www.thescripts.com/forum/thread704383.html) but I do not know how to do to see whether the other side is pick up the call before sending voice from PC. After issued AT command ATDT234545, for example, How can we do to check that the dialing number is pick up our call? If you have an example in .Net would be so great.

Best regards,

Veasna
Nov 8 '07 #1
0 1066

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