The solution to the problems with the Grandstream 1.0.4.39 firmware is to use inband (in-audio) DTMF. Neither the RFC2833 nor INFO seem to work.
However, this presents another problem. When I'm using g729 to place a call, I get the warning "Unable to process inband DTMF" because inband is not supposed to work with g729 (although it does seem to work when I've tried it so far). Can Asterisk convert between different modes of DTMF? For instance, my phone would use inband, and Asterisk would convert this to rfc2833 before reaching the channel I am connected to? I've tried using dtmfmode=rfc2833 in the service definition in sip.conf. Thanks, Barton _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
