I have been missing this sort of overview on the Lync Clients for a while, somewhere to get a summary on the different protocols and resolutions/bandwidths of the different Lync Clients. TechNet and other sources I’ve come across are only showing some parts on the subject.
So ultimately I put together this “Matrix”, although not complete. As you can see I lack the info on what kind of voice proto’s being used for Lync:Mac 2011. I do not suspect that this is different from the Lync 2010 Client for Windows (since these are communicating) – but I cannot prove it.
Here is the summary I’ve been able to do this far:
Some remarks from the table are
*1: If Your Android Device supports the Qualcomm 8×60, send rate is 640×480@15fps
*2: Windows Mobile Devices will support hardware offloading on transcoding
Rune's blog about things I see and UC 
Nice write-up Rune! One small piece of feedback – I guess the title would be more accurate if it said “codecs” instead of “protocols”? Just for SEO etc.
Thanks for the feedback, you are definitely right about that. I will change it to reflect that very fact.
Rune
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Hi mate, very good post, where did you get the information regarding the Lync mobile client codec usage?
Hi Uri.
I got it from the Lync Conference 2013 session where the client was introduced. I am not sure if the slide deck is still available but you can probably find it yourself.
Brgds,
Rune