[asterisk-dev] AMI command for checking SIP channel QoS (proposal)

Klaus Darilion klaus.mailinglists at pernau.at
Fri Nov 6 02:34:37 CST 2009


Hi Olle!

Great that you are working on QoS again.

It would be great if you could make a command to retrieve the QoS data 
of ALL ongoing SIP calls, maybe channel: SIP/* ?

regards
klaus

Olle E. Johansson schrieb:
> 5 nov 2009 kl. 21.41 skrev Olle E. Johansson:
> 
>> action: sipchannel
>> channel: SIP/olle-00000000
>> datatype: qos
>>
>> Response: Success
>> LocalSSRC(audio): 1715597342
>> RemoteSSRC(audio): 2819276571
>> LocalJitter(audio): 20
>> LocalPacketCount(audio): 9042
>> RemotePacketCount(audio): 9069
>> LocalLostPackets(audio): 380
>> RemoteLostPackets(audio): 396
>> RemoteJitter(audio): 3
>> MediaRtt(audio): 204
>>
> 
> While debugging, I realize that "rtcp debug on" reports a very  
> different Remote SSRC than these reports. Something is really weird  
> here.
> 
> The Media round trip time is the last reported time. We should  
> propably calculate an average of the reported round trip times from  
> the far end.
> 
> /O
> 
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