VMware View lync call is choppy and very bad quality.

Hi,

I am Facing Lync call issues.VDI desktop is in branches. audio quality was poor so we made a change http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2047808 after this audio quality was ok. but now when user make a concall with 2 members min call quality goes very poor.  we have 2 GBps between branches and datacenter. Guys pls suggest what change will helpful coz its affecting production.

Office Lync  2007

USB Headset

Regards,

Charvo Benjamin