Cisco Cisco Expressway
Appendix 2: Connecting Unified CM to an
Expressway cluster
Expressway cluster
From Unified CM version 8.5, to connect Unified CM with a cluster of Expressway peers there are 2 methods
of providing Unified CM with the addresses of the Expressway cluster peers:
of providing Unified CM with the addresses of the Expressway cluster peers:
n
the trunk to Expressway specifies the DNS SRV address for the Expressway cluster
n
the trunk to Expressway specifies a list of Expressway peers
Prior to Unified CM 8.5, the trunk to Expressway had to specify the DNS SRV address for the Expressway
cluster.
cluster.
Configuring the trunk to Expressway to specify the DNS SRV
address for the Expressway cluster
address for the Expressway cluster
Ensure that in the DNS server used by Unified CM a DNS SRV record exists for the cluster of Expressway
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 Unified CM, go to
Device > Trunk
.
2. Select the previously configured Trunk.
3. Scroll down and configure the
SIP Information
section fields as follows:
Destination address
<DNS SRV name of Expressway cluster>
Destination address is an SRV
Select this check box.
4. Click Save.
5. Click Reset.
6. Click Reset.
7. On Expressway, ensure that the cluster name is configured as a SIP domain (
Configuration >
Domains
).
Cisco Unified Communications Manager with Cisco Expressway (SIP Trunk) Deployment Guide (X8.2)
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Appendix 2: Connecting Unified CM to an Expressway cluster