Hello all, I'm still having problems with the IVR options. When I press on my mobile phone one of the digits related in the IVR options, press 1 for .....,press 2 for......, press 3 for...... After I press the one, the second or the tirth key on my mobile phone, I can't hear nothing more, I can't hear the following menu. I just search info about dtmf but i can't find information witch help my to solve my problem. Any clue will be appreciated. Here is my channel definition in Zapata.conf signalling=fxs_ks callwaiting=yes language=en context=incoming callerid=asreceibed relaxdtmf=yes channel =>1 And here a user defined in SIP.conf (All users I have have the same config) [pepe] type=friend ;secret=lele host=dynamic ;dtmfmode=inband ; Choices are inband, rfc2833, or info dtmfmode=info defaultip=xxx.xxx.xxx.xxx mailbox=122 ; Mailbox for message waiting indicator ;restrictcid=yes ; To have the callerid restriced -> sent as ANI pickupgroup=1 callgroup=1 username=pepel ; usually matches the section title fromuser=22 ; overrides the callerid, e.g. required by FWD callerid=pepe Thank you in advice Ismael Gil.