Source note · Unified CM intercluster trunks
Two SIP trunks cannot share the same X.509 subject name and incoming port combination.
Checked 2026-09-25
You cannot assign the same subject name and incoming port combination to different SIP trunks.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- SIP trunk security
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-25
Sources
- Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Trunk and Gateway SIP Security — Cisco Systems · tier 2 current vendor documentation · Trunk and Gateway SIP Security > SIP Trunk Security Profile Settings > X.509 Subject Name
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM intercluster trunks: source note cucm-intercluster-trunks-sec-subject-port-unique. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-sec-subject-port-unique
BibTeX
@misc{warmtransfer-claim-cucm-intercluster-trunks-sec-subject-port-unique,
title = {Unified CM intercluster trunks: source note cucm-intercluster-trunks-sec-subject-port-unique},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-sec-subject-port-unique},
note = {Source note cucm-intercluster-trunks-sec-subject-port-unique, checked 2026-09-25}
}