asterisk users - Oct 2005 - DTMF tones not working with SIP

My Asterisk PBX seems unable to receive DTMF information via SIP. I have tried
all the various methods, rfc2833, inband and info and they all don't seem to
work. IAX2 works fine. Is there something I must be missing                    
                                       ?

/Obelix

----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.