In the 3.2 branch the Jitter Buffer size is hard coded: sipXtapi-3.2/sipXmediaLib/include/mp/MprDejitter.h:44: MAX_RTP_PACKETS = 512 ///< Could be any value, power of 2 is desired.
A normal payload size for RTP packets is 160 bytes / 20ms (u-Law). This means the jitter buffer size is 10.24 seconds. With this size audio and DTMF data can be delayed for more than 10 seconds? I think silence suppression and DTMF input can currently show this problem. http://www.voiptroubleshooter.com/problems/jbconfig.html A typical jitter buffer configuration is 30 milliseconds to 50 milliseconds in depth. In the case of an adaptive jitter buffer then the maximum size may be set to 100-200 milliseconds. Note that if the jitter buffer size exceeds 100 milliseconds then the additional delay introduced can lead to conversational difficulty. ...Carsten _______________________________________________ sipxtapi-dev mailing list sipxtapi-dev@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipxtapi-dev/
