A couple of other related questions:
What kind of experiments can I try to isolate this echo problem?
Is this a fundamental problem with a component of the system (e.g. codec, 
sipxmediallib, ...), or is it more likely to be a problem in my 
hardware/software configuration (e.g. microphone, headphones, etc)?

I am using one of the standard codecs that come with sipxtapi. I have not 
integrated GIPs.

From: [EMAIL PROTECTED]
To: [email protected]
Date: Wed, 24 Oct 2007 18:20:50 -0400
Subject: [sipxtapi-dev] Echo Problem








I have an application that uses sipxtapi to establish a bidirectional call. The 
application can initiate the call, or accept the call. Today I finally tested a 
call to someone using the same application probably 100 miles away. We were 
able to hear each other fine. However we also heard our own voices echoing 
back. The echo tended to be delayed by a second or two.

How can I eliminate this echo? What are the potential causes for the echo? 


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