Source note · Unified CM SIP trunks and security profiles
Inference: both Unified CM trunks target the same LGW listening port (5060), so the LGW tells them apart by the port in the topmost Via header. That port is the Incoming Port of each trunk's security profile, not the trunk's destination port.
inferred · Checked 2026-09-24
- Vendor
- Cisco
- Product
- Unified CM with Webex Calling Local Gateway
- Subsystem
- LGW and Unified CM coexistence
- Deployment
- hybrid
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Status
- inferred
- Checked
- 2026-09-24
Sources
- Configure Local Gateway on Cisco IOS XE for Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Configure Local Gateway with an existing Unified CM environment (voice class URIs and dial-peers), read with cisco-cube-xe-inbound-dp-match-uri and cisco-help-nqqzbk7-configure-ucm-for-wxc
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-inf-via-port-discriminator. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-inf-via-port-discriminator
BibTeX
@misc{warmtransfer-claim-cucm-sip-trunks-inf-via-port-discriminator,
title = {Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-inf-via-port-discriminator},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-inf-via-port-discriminator},
note = {Source note cucm-sip-trunks-inf-via-port-discriminator, checked 2026-09-24}
}