Cisco Cisco TelePresence Video Communication Server Expressway

Enabling MOC clients to see the presence status of endpoints registered on Cisco VCS Control 

On (if Cisco VCS Control is to generate presence 
information for registered endpoints) 

 

 

Note: The Cisco VCS that connects to OCS should be the presence server for ALL sip domains that 
OCS might want to look at for presence; this limits the number of Cisco VCSs that OCS’s presence 
requests will travel through. 
 
Presence requests use up SIP resources and with OCS typically having thousands of MOC clients 
connected that may be requesting presence, it is best to limit the range of where the presence 
requests can go, especially not letting them reach Cisco VCSs that already heavily used for taking 
calls. 

For more details on presence see “Presence” in the Applications section of the Cisco VCS 
Administrator Guide. 

No further configuration (beyond that carried out above) is required on OCS to support presence. 

Test calls from endpoints registered on Cisco VCS Control to MOC clients registered on OCS. 

For example, call steve.hight@test-customer.com or mary.jones@test-customer.com from both SIP 
and H.323 endpoints registered on Cisco VCS Control. 

Set up the endpoints registered on Cisco VCS Control as buddies in MOC. 

 

See the icon change from gray to green when an endpoint is registered on Cisco VCS Control. 

 

See the icon change from green to gray if the endpoint becomes de-registered from Cisco VCS 
Control. 

Cisco VCS Deployment Guide: Microsoft OCS 2007 R1 and R2 and Cisco VCS X5.2 

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