[asterisk-dev] Asterisk Call Quality Metrics

[John Todd]

>At 1:16 PM -0500 8/21/06, John Lange wrote:
>>
>>I believe I read on this mailing list that someone was implementing some
>>form of call quality metrics for Asterisk but I've tried searching and I
>>can't seem to pull up anything.
>>
>>Can someone please tell me what the proper name is for call statistics
>>collecting and what the status is of this effort in Asterisk?
>>
>>If I remember correctly these statistics are collected in both
>>directions? The far end-point reports back statistics via SIP to the
>>server.
>>
>>John
>
>As noted, the RTCP patch set may provide this within RTP, but that 
>patch is not complete .  However, certain devices (SNOM, Cisco 79xx 
>SIP loads) may provide some data in the SIP headers which you could 
>extract with the SIP_HEADER function.

I stand corrected, and should pay more attention to the SVN mailing 
list.  The RTCP patch was indeed committed to trunk back in June by 
Olle, and I somehow missed putting that in my notes.

The values can be extracted in the dialplan, I assume at the end of the call:

  ${RTPAUDIOQOS}          RTCP QoS report for the audio of this call
  ${RTPVIDEOQOS}          RTCP QoS report for the video of this call

JT