Cisco Cisco TelePresence Video Communication Server Expressway
Appendix 4 – Connecting CUCM to a cluster of Cisco VCS peers
Cisco VCS Deployment Guide: CUCM v6.1, 7 and 8 with Cisco VCS X7.1 using a SIP trunk
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Appendix 4 – Connecting CUCM to a cluster of
Cisco VCS peers
Cisco VCS peers
From CUCM version 8.5, to connect CUCM with a cluster of Cisco VCS peers there are 2 methods of
providing CUCM with the addresses of the VCS cluster peers:
providing CUCM with the addresses of the VCS cluster peers:
the trunk to VCS specifies the DNS SRV address for the VCS cluster
the trunk to VCS specifies a list of VCS peers
Prior to CUCM 8.5, there was only 1 method; the trunk to VCS had to specify the DNS SRV address
for the Cisco VCS cluster.
for the Cisco VCS cluster.
Configuring the trunk to VCS to specify the DNS SRV
address for the VCS cluster
address for the VCS cluster
Ensure that in the DNS server used by CUCM a DNS SRV record exists for the cluster of Cisco VCS
peers; in the DNS SRV record each peer should be set with equal priority and equal weight.
peers; in the DNS SRV record each peer should be set with equal priority and equal weight.
1. On CUCM, go to
Device > Trunk
.
2. Select the previously configured Trunk.
3. Scroll down to the SIP Information section
4. Configure the SIP Information fields as follows:
Destination address is an SRV
Select this check box.
Destination address
<DNS SRV name of VCS cluster>
5. Click Save.
6. Click Reset.
7. Click Reset.