Dear all,

I am a new comer, nice to meet u all. I am now working on a project which required me to use TAPI to make a call. My programme can only make a call, but it remains silence during th call, i.e. no human voice nor tones can be heard. Tone detection and generation can function properly. So would any one suggest me what's wrong with it?
The attached is my programme in vb.

Thx for your kind atteention.

Regards.

Jones