Source note · Unified CM intercluster trunks
Every cluster in an ILS network needs a unique Cluster ID, and ILS does not work if remote clusters keep the default Cluster ID StandAloneCluster.
Checked 2026-09-25
ILS does not work if your remote clusters retain the default StandAloneCluster value
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- Intercluster Lookup Service
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-25
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure Intercluster Lookup Service — Cisco Systems · tier 2 current vendor documentation · Configure Intercluster Lookup Service > Configure Cluster IDs
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM intercluster trunks: source note cucm-intercluster-trunks-ils-unique-cluster-id. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-ils-unique-cluster-id
BibTeX
@misc{warmtransfer-claim-cucm-intercluster-trunks-ils-unique-cluster-id,
title = {Unified CM intercluster trunks: source note cucm-intercluster-trunks-ils-unique-cluster-id},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-ils-unique-cluster-id},
note = {Source note cucm-intercluster-trunks-ils-unique-cluster-id, checked 2026-09-25}
}