Does anybody else have issues with the Hardware Echo Canceller and DTMF detection on this card? I installed an IVR system (no VoIP), and the Zap channel does not detect DTMF tones properly. For example the user hits 123 and the systems sees 1123 or just 23. Trying relaxdtmf yes/no does not help at all. If we disable the Hardware Echo Canceller, DTMF will work perfectly 100% of the time.
Does anybody else have a similar experience with this?

Thanks,

--
Andres


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