[asterisk-users] Certain fax types cause problems

[Steve Davies]

Hi,

I was wondering whether anyone has any input into the reliability of
faxing (over a PRI) using spandsp and rxfax.

99% of times this is a reliable combination - we use it almost
exclusively, but there seem to be certain fax devices which have
problems talking to us. Most notably fax modems, and a couple of HP
multi-function devices.

I have enabled full tracing of these problem devices, and generally
find that they will not train at the lowest level, but sometimes will
manage to send 90% of a page before failing.

Any pointers on how to diagnose or improve this would be appreciated.

Regards,
Steve