Your company has a main office and a branch office. The network has a Lync Server 2010 infrastructure that contains the following components:
* Call Admission Control enabled in both offices
* A WAN link that connects the branch and the main office
* A Survivable Branch Appliance (SBA) in the branch office
* A Lync Server 2010 Enterprise Edition pool in the main office
All users run Microsoft Office Communicator 2007 R2. Users in the branch office report that they experience poor audio quality when they initiate PC-to-PC calls to users in the main office. You need to recommend a solution that improves the audio quality of PC-to-PC calls across the WAN link. What should you include in the recommendation?
A.
Deploy a new Global Client Policy.
B.
Deploy a Mediation Server in the branch office.
C.
Install Microsoft Lync 2010 on all client computers.
D.
Install the Enterprise Voice Route Helper on all client computers.
Explanation:
Because only Lync 2010 is call admission control aware, clients such as Communicator 2007 R2 and Communicator 2007 wont enforce call admission control when those clients are the recipients. (http://technet.microsoft.com/en-us/library/ff731056.aspx)