i am sending this message to my asterisk first message: INFO sip:172.16.0.32 SIP/2.0 Via: SIP/2.0/UDP 172.16.0.21 From: <sip:6000@172.16.0.21> To: <sip:172.16.0.32> Call-ID: 51@172.16.0.21 CSeq: 21 INFO Contact: <sip:6000@172.16.0.21> Content-Type: application/dtmf-relay ContentLength: 26 Signal= 0 Duration= 160 it is not replying for all requests * only respons first time i am actualy trying for DTMF in Sip by INFO message can any one help me in this is this valid second message: INFO sip:172.16.0.32 SIP/2.0 Via: SIP/2.0/UDP 172.16.0.21 From: <sip:6000@172.16.0.21> To: <sip:172.16.0.32> Call-ID: 51@172.16.0.21 CSeq: 21 INFO Contact: <sip:6000@172.16.0.21> Content-Type: application/dtmf-relay ContentLength: 26 Signal= 1 Duration= 160 these two messages are correct ? _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com