We are having a very frustrating one way audio issue with one phone only. On some inbound calls from the PSTN the user is complaining that she cannot hear the caller, but the call can hear her. The problem usually occurs once every one or two days.
I have replaced her phone and reset the DSP modules on our 2811 PSTN gateways without any success. Any suggestions would be helpful as to what would be causing this issue.
Thanks for the input. I have verified that all the requirements are met for the first two documents. Calls to the extension that is experiencing one way audio are not routed through unity before arriving at the phone, so I don't think the second document applies. Which is why this is very frustrating for us.
I'm going to try and recreate the issue tonight while running an mgcp debug, then send the information to TAC.
I'll let you know how it turns out.
If there are any other suggestions, i'm always thankful for the help.
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