John Todd wrote:
It is probably not better to force your traffic (or media) through
some other device in order to collect metrics. I can't see in any
circumstance where that would be 'better', 'easier', or would have any
significant value.
absolutly right.
Blitzrage on irc gave me idea how to get both RTCP stats at the end of
two bridged SIP channels. Although i dont like this method because of
use Local channel, it works. What would be nice is simple method, how to
grab this stats from both channels at once in one h extension.
-----------
exten => xxx,1,Dial(Local/context1....)
exten => h,1,set(CDR(qos1)=CHANNEL(rtpqos,....)
[context1]
exten => xxx,1,Dial(SIP/....)
exten => h,1,set(CDR(qos2)=CHANNEL(rtpqos,...)
-----------
There is a misnomer in the original message which may be causing
confusion here: "SIP traffic" isn't what you're pushing through the
"proxy". In order to observe RTCP messages, you would have to push
all of your RTP traffic through some other proxy and extract the
real-time messages. SIP is signalling, RTP is media (including
RTCP.) It seems that Asterisk would be a more efficient place to do
this if you were already looking at the media as a B2BUA, and if
Asterisk was NOT a B2BUA, then you're not going to get the information
unless it's handed back as part of a SIP BYE (as some Cisco devices do.)
If the original commenter REALLY meant SIP, then I assume this draft
(vq-rtcpxr) has been implemented on equipment that I've never heard of:
http://www.tools.ietf.org/html/draft-johnston-sipping-rtcp-summary-08
JT
At 11:59 AM -0400 2007/5/30, Alex Balashov wrote:
On Tue, 29 May 2007, Andrew Kohlsmith wrote:
Alternatively force all SIP traffic through a proxy that does this.
That would almost certainly be easier and more portable.
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : +1-678-954-0670
Direct + +1-678-954-0671
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--
Martin Vít
LAM plus s.r.o.
http://www.lam.cz/
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