IP trunking fax issues

[northportphoneguy]

Greetings, As the subject implies.
I have 2 MXes with 9.0 with ip trunking bewteen them. To clear up some faxing problems, my vendor installed T.38 licenses. They told me that once the ICPs were rebooted, the T.38 licenses would be automatic. However I still have problems.
In looking at the docs, it looks like I have to change the zone assignment fax profile to the entry in the fax assignment form that reflects the t38 detection.
Am I making any sense? Am I on the right path?
Thanks

 

[IrwinMFletcher]

Do you have the C55 dsp modules? It was a license + hardware upgrade to support T38.

 

[northportphoneguy]

Hi, Yes I do. The problem was a mistake in the way the vendor thought the licenses and reboot worked. They assumed that Fax Profile #1 would be configured for the T.38. All my switches are Zone 1 with a Profile 1 so a reboot was all that was needed. Not so. In fact Fax Profile 1 is unconfigurable to pass through G.711 and Profile 2 is configured T.38. So I changed the Zone Fax profiles and things have gotten much better.
Thanks

 

[kwbMitel]

Treat your vendor the same way you would treat any advice on this forum. Nobody knows it all. I've surprised Mitel engineers with some of my discoveries in fact. (both good and bad).

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Occam's Razor - All things being equal, the simplest solution is the right one.