Issue with faxes on Analog Port

[keitzer]

Experiencing an issue with inbound faxes on a Shoretel 220T1A. Faxes come in DID via PRI interface on standard NI-2 PRI and terminate on analog FXS port with a Dell Laser MFP 1600n attached. Only get about 30% of faxes through. Fax is constantly disconnecting with Comm Errors and transmission errors. We have tried optioning the fax for lower speed and no Error Control but to no avail. Has anyone out there experienced this issue? Is there an analog port option that we are missing?

[getzjd]

Not that I know of. We have about 20 faxes setup on analogs with no problems. What version of software are you running on the switches?

[teich]

Issue with faxes on Analog Port

We have had lots of problems
mostly a mix of shoretel 90's, and a 24a.
various Sharp fax machines and even tested a brother
we have tried incoming from pri and analog
internal WAN faxing doesn't work either
error control and speed make no difference
adjusted TX and RX gain in the shoretel database no change
adtran switches POE
cisco routers
all configs have been checked and confirmed from shoretel and partner / installer
build 13.24.2504.0
some fax machines getting 90% error rate

anyone have any ideas or have overcame this issue?

[Jason_C]

This may be unrelated, but we had a similair issue with fax's cutting off 1/2 way through. Turns out the Call Stack wasnt set right, and the call waiting tone of a 2nd fax was causing the first fax to drop.

[swilliamson]

I am having the same problem. Faxes come in though PRI to the Shoregear220T1A. Receiving faxes are usually successful but sending it's probably about 40% that make it though. Shoretel support verified all of the fax settings to be correct. I'm working with the PRI provider now to see if there are any problems on that end.