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Begining of Calls are garbled

Posted by bup413 on Tue, 08/31/2010

I am using MTE and with on tenant most of the calls the audio is garbled for about 1-2 seconds then clears up and is fine.

g729 (almost all tenants are g729, very few g711)

Any thoughts?

-Adam


Submitted by eeman on Tue, 08/31/2010 Permalink

garbled audio is often a sign that someone ignored advice and installed asterisk inside a virtual environment or cloud.

Submitted by bup413 on Tue, 08/31/2010 Permalink

There are many other tenants on the server and most have 0 problems, other very few and have been pinned to lack of bandwidth on the customers end. This one has DSL, 6 phones, low call volume, PING 40ms to the server. The DSL is dedicated only to the phone traffic.

Server is CentOS 5 up to date, no virtualization.

The only unique thing here is it is a radio station and there are amplifiers and radio towers around, other than the garble no other audio quality issues.

-Adam

Submitted by brian on Tue, 09/07/2010 Permalink

It's possible that if the local transmitter is pushing a few hundred watts that the RF is interfering with the handsets. Try a softphone on a laptop and see if the issue still exists...