1. If the connection is saturated (including 40% being used for Lync audio calls), but the RTAudio codec for the existing calls is currently providing high quality audio, will Lync throttle back the quality on existing calls to open up bandwidth
for a new call to be placed? It seems like this is a good idea as long as the audio quality is not reduced too much.
There are two settings in CAC; traffic shaping for the connection similar to the 40% you have mentioned, second one session limit. if you limit the session to let say 100 Kbps, new call cannot establish if 100 Kbps not available within the 40% you have
mentioned. So exiting call will continue without impact, new call can be establish only after ending existing call.
2. If the audio is using 40% of the bandwidth but "other uses" on the connection are only using say 10% (leaving 50% unused) will Lync allow a new call to be placed to take advantage of the unused bandwidth? I have seen this implied but
have not seen it confirmed anywhere else.
It doesn't exceed BW limit set for Lync Audio and Video not for other streaming media or any other modality.
4. Also, if the answer to (2) is yes then how does Lync determine how much bandwidth is being used on the connection? I don't believe it has access to this low-level statistic.
No, it doesn't have access to low level statistic, it is not implemented at layer 2 or 3 network level.
Malinda Perer | MCSM - Chatter Communication | MCM - Lync 2010 and OCS 2007 | http://malinblog.com/ | https://sg.linkedin.com/in/malindap
