For the registration-based trunk to Webex Calling, the Local Gateway guide configures SIP transport as TLS v1.2 (transport tcp tls v1.2).

Checked 2026-09-23

transport tcp tls v1.2
Vendor
Cisco
Product
Webex Calling Local Gateway (CUBE on IOS XE)
Subsystem
registration-based trunk
Deployment
hybrid
Region
not restricted
Release range
current as of 2026-09-23
Checked
2026-09-23

Sources

Cite this note

APA

WarmTransfer. (2026, September 23). SRTP and media encryption negotiation: source note srtp-media-security-webex-lgw-tls12. WarmTransfer. https://warmtransfer.net/knowledge/claims/srtp-media-security-webex-lgw-tls12

BibTeX

@misc{warmtransfer-claim-srtp-media-security-webex-lgw-tls12,
  title  = {SRTP and media encryption negotiation: source note srtp-media-security-webex-lgw-tls12},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/srtp-media-security-webex-lgw-tls12},
  note   = {Source note srtp-media-security-webex-lgw-tls12, checked 2026-09-23}
}

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