We have a problem at one of our customer sites where they can call locally, but not fax. The faxes are connected directly to the gateway via FXS ports, and the PRI is connected in the same gateway. It is h.323 and we have all the dialpeer statments we need. We can also call out using a phone, but not using a fax. Running a debug ( dialpeer debug and isdn q931 debug) we get this we they take a fax off hook:
*Jan 27 19:55:07.497: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore: Match Rule=DP_MATCH_PORT;
And then nothing. They dial 6 digits, then they hear a busy signal.
Any ideas on what could be causing this?