I have two asterisk machines setup. M1 is asterisk 1.4.11 connected with a PRI M2 is asterisk 1.2.23 connected to M1 over sip. When M2 calls out through M1 and tries to use SendDTMF() in an agi I get varied results. 1) In sip.conf if dtmfmode=rfc2833 I do not hear the sendDTMF() 2) In sip.conf if dtmfmode=info I do hear the sendDTMF() Why is there a difference? Jerry