In Unified CM 15 the list of partitions in a calling search space is limited to 1024 characters, so the maximum number of partitions in a CSS depends on partition name length.
Checked 2026-09-24
The list of partitions in a calling search space is limited to a maximum of 1024 characters.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- dial plan / calling search spaces
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15 and SUs
- Checked
- 2026-09-24
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure Partitions — Cisco Systems · tier 2 current vendor documentation · Configure Partitions > Partition Name Guidelines
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM dial plan partitions and calling search spaces: source note cucm-dial-plan-css-limit-1024. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-dial-plan-css-limit-1024
BibTeX
@misc{warmtransfer-claim-cucm-dial-plan-css-limit-1024,
title = {Unified CM dial plan partitions and calling search spaces: source note cucm-dial-plan-css-limit-1024},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-dial-plan-css-limit-1024},
note = {Source note cucm-dial-plan-css-limit-1024, checked 2026-09-24}
}