TLS SIP trunks and non-TLS SIP trunks cannot share the same incoming port.

Checked 2026-09-24

You cannot mix SIP TLS transport trunks with SIP non-TLS transport trunk types on the same port.
Vendor
Cisco
Product
Unified Communications Manager
Subsystem
SIP trunk security profile
Deployment
on-premises
Region
not restricted
Release range
Release 15 and SUs
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-no-mixed-tls-port. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-no-mixed-tls-port

BibTeX

@misc{warmtransfer-claim-cucm-sip-trunks-no-mixed-tls-port,
  title  = {Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-no-mixed-tls-port},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-no-mixed-tls-port},
  note   = {Source note cucm-sip-trunks-no-mixed-tls-port, checked 2026-09-24}
}

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