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t38 and fallback to passthrough on PGW controlled AS5400

I have a PGW controlled AS5400 using CA controlled faxing. T38 works fine but I'm unable to get working fallback to passthrough for CPE's that does not speak t38. If anybody have some advice, IOS version that works for him(her), etc, I would really appreciate.

Ivan

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New Member

Re: t38 and fallback to passthrough on PGW controlled AS5400

Hi to all!

Seems that 12.4 IOS train does not "do" fallback as it should (at least not in CA controlled mode). Downgrading to 12.3 helped.

Ivan

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