How to know about current maximum video resolution supported by lync server

There are 2 possible way to know about video resolution configuration.

1. The hard way -- from lync server management shell.

Open lync server management shell in administrator mode.
Now give following command ---

Get-CsMediaConfiguration –Identity Global

Output:

 2. Easy way -- smart way from lync client uccapi log with out lync server.

Open uccapi log of lync client from Tracing folder .

Now search by <ucMaxVideoRateAllowed> .You will see that like ---

<ucMaxFileTransferPort>5389</ucMaxFileTransferPort>
<ucPC2PCAVEncryption>SupportEncryption</ucPC2PCAVEncryption>
<ucMaxVideoRateAllowed>Hd720p-1.5M</ucMaxVideoRateAllowed>
<qosEnabled>true</qosEnabled>
<ucDiffServVoice>40</ucDiffServVoice>
<ucVoice802_1p>0</ucVoice802_1p>

Which is your current video resolution configuration.

To change it please follow the procedure describe on here.