To allow mobile clients to connect to Lync Server 2010, you will need to install Lync  2010 Hotfix KB 2493736 (CU6) , and then enable Mobility Service .

You can test the Mobility Service by deploying Mobile Phone 7.5 Emulator on your PC as follows:

1. Download & install the latest version of the XNA Game Studio

2. Download & Install the Windows Phone SDK 7.1

3. Download & Install Windows Phone SDK 7.1.1 Update

4. Download & Install WP7 Market Place

5. Open the Windows phone emulator.

You will need to install the Root Certificate to the emulator in case you are using internal CA.

Ø Open the Internet Explorer on the Windows Phone Emulator, Browse to your CA web site http://CA-Server/Certsrv

Ø Download the Certificate Chain


Ø Install the Certificate



6. Open the Phone7Market, Then Search for Lync 2010.


Ø Right Click on the Lync 2010 App > Select Quick Actions > Deploy to Emulator


Now, you have the Lync 2010 Mobile client running on Windows Phone 7.5 Emulator