Source note · Unified CM Session Management Edition

GDPR uses ILS as its transport, so a multi-cluster deployment requires ILS between all Unified CM clusters.

Checked 2026-09-25

GDPR uses Intercluster Lookup Service (ILS) as the transport medium, therefore setting up ILS between all Unified CM clusters is required for multi-cluster deployments.

Vendor: Cisco
Product: Unified Communications Manager
Subsystem: dial plan replication
Deployment: on-premises
Region: not restricted
Release range: Collaboration Systems Release 14
Checked: 2026-09-25

Sources

Preferred Architecture for Cisco Collaboration 14 Enterprise On-Premises Deployments, CVD - Call Control — Cisco · tier 2 current vendor documentation · Multi-Cluster Considerations

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM Session Management Edition: source note cucm-session-management-edition-gdpr-requires-ils. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-session-management-edition-gdpr-requires-ils

BibTeX

@misc{warmtransfer-claim-cucm-session-management-edition-gdpr-requires-ils,
  title  = {Unified CM Session Management Edition: source note cucm-session-management-edition-gdpr-requires-ils},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-session-management-edition-gdpr-requires-ils},
  note   = {Source note cucm-session-management-edition-gdpr-requires-ils, checked 2026-09-25}
}

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