We are having issues with faxing through a PRI on a 4506 AGM module, configured MGCP with CCM 3.33. The faxes are (incoming and outgoing) cutting off in mid stream. Any assistance would be great
What fax protocol (relay/passthru) do you use?
What gateways are you using for connection to the PSTN/to faxes?
PRI and FAXES are on cat 4507 with WS-x4604-GW AGM module configured as MGCP. and using passthrough.
Some faxes and modem are also on VG224
ccm-manager redundant-host 10.128.5.3
no ccm-manager fax protocol cisco
ccm-manager config server 10.128.5.3
mgcp call-agent 10.128.5.4 2427 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp modem passthrough voip codec g711alaw
mgcp package-capability rtp-package
no mgcp package-capability res-package
mgcp package-capability sst-package
mgcp package-capability pre-package
no mgcp timer receive-rtcp
mgcp sdp simple
no mgcp fax t38 ecm
mgcp fax t38 inhibit
mgcp bind control source-interface GigabitEthernet0/0
mgcp bind media source-interface GigabitEthernet0/0
Check to see if you are having slips on your PRI. Fax transmission seem to be very susceptable to timing slips.
Yes, I am seeing slips on both PRI's
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