Manual

Enabling endpoints registered on the video network to call MOC clients registered on OCS
Configure an NTP server
On each “OCS gateway” Cisco VCS Control peer:
1. Go to the Time page (System Configuration > Time).
2. Set NTP server to the IP address of an NTP server
3. Set Time zone as appropriate to the location of the Cisco VCS.
Note: You can find out which time server that windows server is using by typing ‘net time /querysntp’
from a windows command line
Switch on TLS in SIP configuration (not needed if TCP connection is to be
used)
1. Go to the SIP page (VCS Configuration > Protocols > SIP > Configuration).
2. Ensure that TLS mode is On.
Set up H.323

SIP interworking
For H.323 endpoints to be able to communicate with OCS, Cisco VCS must interwork the SIP
signaling and H.323 signaling.
Cisco VCS Deployment Guide: Microsoft OCS 2007 R1 and R2 and Cisco VCS X5.2 Page 33 of 92