Source note · TLS versions and cipher support across UC platforms
The Webex Calling secure SIP cipher list includes the TLS 1.3 suites TLS_AES_256_GCM_SHA384 and TLS_AES_128_GCM_SHA256 alongside ECDHE, DHE and ECDH TLS 1.2 suites with AES-GCM and AES-CBC.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- cipher suites
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Security requirements for Webex Calling — Cisco Systems, Inc. (help.webex.com) · tier 2 current vendor documentation · TLS ciphers supported for secure SIP
Cite this note
APA
WarmTransfer. (2026, October 2). TLS versions and cipher support across UC platforms: source note tls-version-support-uc-webex-calling-tls13-ciphers. WarmTransfer. https://warmtransfer.net/knowledge/claims/tls-version-support-uc-webex-calling-tls13-ciphers
BibTeX
@misc{warmtransfer-claim-tls-version-support-uc-webex-calling-tls13-ciphers,
title = {TLS versions and cipher support across UC platforms: source note tls-version-support-uc-webex-calling-tls13-ciphers},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/tls-version-support-uc-webex-calling-tls13-ciphers},
note = {Source note tls-version-support-uc-webex-calling-tls13-ciphers, checked 2026-10-02}
}