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one way audio

recently I have upgraded the IOS on on our 2650/2651XM voice gateways from 12.3(8)T5 to 12.4(6)T. The gateways are MGCP controlled. Since the upgrade i have had numerous complaints of calls being already in progress and all of a sudden the party whose phone is directly connected to the router running the new code cannot hear the other party. i do have header compression turned on on these links and am about to turn it off. Is there any place I could look while trying to resolve this issue? Any input would be greatly appreciated. Thanks.

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Re: one way audio

If you have not does so already, Bind MGCP to an address. Anther thing, I would recommend is to had a entry in the host file on the server for that router name and ip address. Make sure you match this up to the mgcp config on the CM server. The host file entry and domain name should match...

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