Hello. I have followed this guide to enable integration between Lync and Cisco VCS:
http://www.cisco.com/en/US/docs/telepresence/infrastructure/vcs/config_guide/Cisco_VCS_Microsoft_Lync_2010_Deployment_Guide_X6-1.pdf.
I am trying to enable Lync to VCS integration over TCP, not TLS. Currently whenever a call is placed from Lync to VCS or the other way, I get several errors in the SIP stack log of Lync and this error in VCS: 400 Missing Correct Via Header. The issue seems to have to due with the Lync server not trusting the VCS. I have done A LOT of googling on this and have found several helpful posts, but my problem still remains.
Any help would be greatly appreciated.