Manual

Contents
Set up H.323

SIP interworking............................................................................................... 33
Set Call routed mode to Always..................................................................................................... 34
OCS configuration ................................................................................................................................. 35
Allow (M)TLS or TCP connection to OCS...................................................................................... 35
Configure OCS to trust the “OCS gateway” Cisco VCS(s) ............................................................ 38
Configure static route(s) to route calls to the “OCS gateway” Cisco VCS(s)................................. 42
Configure OCS to make media encryption optional....................................................................... 44
“OCS gateway” Cisco VCS Control configuration (2)............................................................................ 46
Configure the “OCS gateway” Cisco VCS with a neighbor zone that contains OCS..................... 46
Set up a Search rule to select what gets routed to the OCS zone................................................. 47
If Hardware Load Balancers are used, set up neighbor zones on the “OCS gateway” Cisco
VCS(s) to receive calls from OCS.................................................................................................. 49
Testing the configuration ....................................................................................................................... 50
Enabling MOC clients registered on OCS to call endpoints registered on the video
network ........................................................................................................................51
”OCS gateway” Cisco VCS Control configuration ................................................................................. 51
Configure the “OCS gateway” Cisco VCS with a neighbor zone that contains the video network 51
Set up one or more search rules to route calls with video network domains to the video network 53
OCS configuration ................................................................................................................................. 53
Testing the configuration ....................................................................................................................... 54
Enabling MOC clients to see the presence status of endpoints registered on Cisco
VCS Control.................................................................................................................55
Cisco VCS configuration........................................................................................................................ 55
OCS configuration ................................................................................................................................. 56
Testing the configuration ....................................................................................................................... 56
OCS Relay configuration of “OCS gateway” Cisco VCS(s) .............................................57
In which versions can I use OCS Relay? .............................................................................................. 57
What does OCS Relay do? ................................................................................................................... 57
OCS Relay and a cluster of Cisco VCSs............................................................................................... 58
Configure OCS Relay and FindMe™ .................................................................................................... 58
Active Directory configuration......................................................................................................... 58
“OCS gateway” Cisco VCS Configuration...................................................................................... 60
Testing the Configuration ...................................................................................................................... 63
Appendix 1 - Troubleshooting ............................................................................................64
Problems connecting Cisco VCS Control local calls............................................................................. 64
Check for errors..................................................................................................................................... 65
Tracing calls .......................................................................................................................................... 65
Presence not observed as expected ..................................................................................................... 65
TLS Neighbor zone to OCS is active, and messaging gets sent from Cisco VCS to OCS, but OCS
debug says OCS fails to open a connection to Cisco VCS................................................................... 66
OCS initiated call fails to connect.......................................................................................................... 66
Call connects but clears after about 25 seconds................................................................................... 66
Cisco VCS to OCS calls fail – DNS Server.................................................................................... 66
Cisco VCS to OCS calls fail - HLB ................................................................................................. 66
Calls between MOC and an endpoint that is not registered to the OCS gateway Cisco VCS clear
shortly after connecting .................................................................................................................. 66
One way media: MOC  endpoint registered to Cisco VCS................................................................ 67
When using Microsoft Edge Server................................................................................................67
Cisco VCS Deployment Guide: Microsoft OCS 2007 R1 and R2 and Cisco VCS X5.2 Page 3 of 92