Hi, I have the follow problem: when i send a fax , it works. But if i receive a fax, it fails. I`m using a VG224 (12.3(7r)T2) and the call to PSTN by 2811 (12.4(13r)T) in MGCP mode. In the CCM i`m using FAX Relay for the E1.
The first place to check would be the calling search spaces. Does the gateway have access to the partition of the fax? I personally choose not to use MGCP for fax, I typically use H323, the prevents any issues that arise via the use of MGCP fax-relay components and takes CCM out of the equation. Hope this helps. If this is not an option, you may try using MGCP fax pass-through.
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