Trouble With T38/Dialogic

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Hello, I am working with which I have patched with t38-gateway and PRACK. t38 is tested and working fine with Zoiper client but I can’t get the t.38 software from Biscom (FAXCOM) to talk. In my first attempts I found FAXCOM announces that it supports 100rel so I added the PRACK patch hoping that would do the trick. Now it gets a little further but * complains about rejecting a non-primary audio stream.

Could this be a problem with 1.8 not liking the second media stream or is there some more configuration tweaking to be done?

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