The Unity Connection 15 LDAP chapter states that the practical limit of users that can be imported into the Cisco Unified CM database is 120,000.

disputed · Checked 2026-09-25

The practical limit of users that can be imported into the Cisco Unified CM database is 120,000.
Vendor
Cisco
Product
Cisco Unity Connection
Subsystem
LDAP sync capacity
Deployment
on-premises
Region
not restricted
Release range
Unity Connection Release 15
Status
disputed
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM LDAP directory sync and authentication: source note cucm-ldap-integration-user-capacity-120k. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-ldap-integration-user-capacity-120k

BibTeX

@misc{warmtransfer-claim-cucm-ldap-integration-user-capacity-120k,
  title  = {Unified CM LDAP directory sync and authentication: source note cucm-ldap-integration-user-capacity-120k},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-ldap-integration-user-capacity-120k},
  note   = {Source note cucm-ldap-integration-user-capacity-120k, checked 2026-09-25}
}

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