I also have AVST ver7.91SP! with 8.0(G130211a) across a hybrid link and the same thing happens , no DTMF when going across a link, if i find something i will let you know
hehe so we got excited too fast
Dude if you put "auto" on Asterisk?? So in that way if rfc2833 is not supported on the sdp signaling then inband mode is used...
Ignorance is not the problem, the problem is the one who doesn't want to learn