[Asterisk-Users] Iitter Buffer Settings

Eric Wieling eric at fnords.org
Tue Oct 21 08:01:19 MST 2003


I'm trying to come up with good jitterbuffer related settings for my
Asterisk boxes.

I ran 4 pings for about 2 days from my main Asterisk server to remote
Asterisk servers.  During that time there were some large file uploads
which caused the max rtt to be quite large.

Here are the results:

pkts	loss	min	avg	max	mdev
132013	%0	70.36	78.13	1967.37	36.04
132013  %0	98.95	120.46	2419.24	111.26
132040	%0	33.82	42.88	1904.79	36.62
131919	%0	0.00	47.04	1924.64	36.36

Using these numbers, and knowing that the max rtt will not happen very
often how do the jitter settings below look?  Does anyone have any
recommendations to improve my call quality using the jitterbuffer?

jitterbuffer=300
dropcount=1
maxjitterbuffer=500
maxexccessbuffer=20

-- 
Sample configs, scripts, more : http://www.fnords.org/~eric/asterisk/

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