I am running a vg224 in CCM 6.1 environment. It is bind to CCM with the sccp protocol. At the moment our faxes are not able to receive faxes, which are originated from an other Cisco Voice GW.
Receiving faxes from PSTN are working fine.
Senting faxes to a PSTN Fax or to a fax device on another site is possible. The other site hide their fax devices behind a cisco gw too.
cut from config:
voice service voip
modem passthrough nse codec g711ulaw
timeouts ringing infinity
dial-peer voice 99939 pots
Thanks for support!