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One way audio

tom_chan
Level 1
Level 1

‎07-02-2009 04:23 PM - edited ‎03-15-2019 06:49 PM

We have one way audio issue with PSTN call. CM 4.2 with 3845 router. Caller A (IP Phone) call out to PSTN user (Caller B). Caller A can hear Caller B but Caller B can't hear anything from Caller A.

Codec mismatch, routing etc. Any advise will be helpful.

Thanks

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Dennis Aston
Level 1
Level 1

‎07-02-2009 05:04 PM

I thought for a second it was a default route issue but the symptoms would be reversed. Verify you have a default route anyway. Did this before myself and felt idiotic.

What type of gateway setup did you use? MGCP?

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