Hi, my channel to our card uses R2D/MFC (built in, not unicall) and I have the followinf scenario (Asterisk 1.2.13) :
E1-A -> connected to PSTN E1-B -> connected to PBX My user starts a call from PBX -> E1-B, then the channel allocates one port of E1-A to dial to PSTN. When the E1-A receives answer, Asterisk bridges both channel and audio can be listen normally. This works well, but I'm having some requirements to allow the user to listen the PSTN tones (ringback, busy, unavailable messages, etc). My initial idea is to send to Asterisk a AST_CONTROL_ANSWER just after "dial", then Asterisk will bridge both channels and the user will be listen PSTN's tones. Any sugestion? Best Regards Paulo Garcia
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