We have Konica 2900/3900 fax machines and we are unable to receive faxes. We are able to send out faxes. The fax machine is connected to an ATA 187. We use MGCP on our voice router and the calls come in on the serial interface T1 (PRI) line.
CUCM version: 184.108.40.20600-26
I can see the calls come in on the voice router (gateway) and when an analog phone is connected it works fine. Seems like the destination fax machine (the one connected to the ATA) answers when i call but the transmission does not complete and a "NG" error is printed out on the source fax machine.
Here is my config:
***** show run *****
boot system flash0 c2951-universalk9-mz.SPA.151-3.T.bin
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