[asterisk-users] packet loss stats - how does asterisk know about packets sent % lost ?

Matthew Jordan mjordan at digium.com
Sun Jan 29 20:54:41 CST 2017

On Sat, Jan 28, 2017 at 4:45 PM, Kevin Long <kevin.long at haloprivacy.com>

> Hello,
> I am just wondering if the statistics from the “sip show channelstats” and
> “pjsip show channelstats”  command are reliable indicators of packet loss.
> How does asterisk know how many packets *sent* were lost? Does this require
> RTCP compatible endpoint/phone,  or something else?
The number of packets lost is determined based on RTCP information received
from the far endpoint. The number is accurate so long as Asterisk is
receiving RTCP information from the endpoint(s) in question.


Matthew Jordan
Digium, Inc. | CTO
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: http://digium.com & http://asterisk.org
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