One book from Cisco is saying better less than 125 msec, no more than 150 msec (round-trip)for interactive real-time video or audio. But I think it is only a recommendation, which level you would like to use is really depends on your clients' expectation for video and audio quality...
It's great to finally find some answers to this question, but just to be totally clear about this (if possible)...
Networked Multimedia Overview
http://www.cisco.com/warp/public/614/19.html under latency it says that it has to be under 400ms. Is this just the maximum latency that the call can have while still maintaining a connection, and that and delay under 150ms means that the delay/latency won't be a factor in the overall quality?
As well, what is the recommended/minimum/maximum jitter...
or are all of these questions too product specific?
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...