Source note · Unified CM globalized dial plan and +E.164 routing
Because Unified CM SIP trunks honour only Unknown-type incoming settings, a SIP-attached gateway facing an ISDN carrier needs to turn the ISDN number type into an explicit + prefix before the call reaches Unified CM, or the type is lost.
inferred · Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- inbound globalization
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Status
- inferred
- Checked
- 2026-09-25
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Calling Party Normalization — Cisco · tier 2 current vendor documentation · Calling Party Normalization chapter, Restrictions, SIP; combined with Preferred Architecture, Inbound Calls: Called and Calling Number Globalization
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM globalized dial plan and +E.164 routing: source note cucm-dial-plan-globalization-inf-sip-needs-plus-on-gw. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-dial-plan-globalization-inf-sip-needs-plus-on-gw
BibTeX
@misc{warmtransfer-claim-cucm-dial-plan-globalization-inf-sip-needs-plus-on-gw,
title = {Unified CM globalized dial plan and +E.164 routing: source note cucm-dial-plan-globalization-inf-sip-needs-plus-on-gw},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-dial-plan-globalization-inf-sip-needs-plus-on-gw},
note = {Source note cucm-dial-plan-globalization-inf-sip-needs-plus-on-gw, checked 2026-09-25}
}