re: G.729 Codec Jitter Issues In OPAL

I am trying to transition from OpenH323 to OPAL and have just enabled the 
G.729 codec in OPAL.

Upon testing calls using the G.729 codec against a few different networks 
have found that the call quality has a lot of fast breaks of silence.  The 
measured packet loss and delay on the end to end Internet connection is 
fairly low so my guess is that the sound buffer size may need to be 
increased and/or there is a subtle bug somewhere.   The problem did not 
occur when the G.711 codec was used.

What is the simplest way to increase the sound buffer size in OPAL when the 
G.729 is used? 


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