I tried with registration, no luck.
I am wanting to receive DTMF digits from a remote caller. ie, the caller is someone on a PSTN telephone. the ActiveX control receives the DTMF, and I want an event to fire detecting the DTMF.
I'm testing with a PSTN phone as the remote end. PBX is asterisk. Does the PSTN trunk have to be RFC-2833, or is this supposed to work in-band as well?
(I am building an application that has a voice path open all the time, but want to perform commands based on DTMF while the call is running.)
Thanks for the prompt reply!