Dear all, Look like jingle channel stable now. I found jingle DTMF in source code. but wating for gtalk next version now 1.0.0.96 still not support DTMF. We can use for somesolution like a Call Center Customer can call from gtalk. Gtalk Call back,Gtalk call forward etc. About codec is posible support other codec. now i think only ulaw support. Dome C.