Inbound fax not working

[amanchau]

Inbound faxes not working, Below is the call flow : 

Call Flow : PSTN --> ISDN PRI --> PTSN GW --> MGCP --> CUCM --> FXS GW --> FXS --> FAX Machine

i am attaching the debugs for the PSTN GW and the FXS GW.

Fax number : 5052229845

When we dial the fax number it keeps ringing and there is no fax tone as well. Any thoughts will be helpful.

Thanks & Regards

[Jonathan Schulenberg]

If the incoming call never answers then you need to look at the fax machine and confirm it’s set to auto answer.