Source note · Web proxies and TLS inspection that break UC clients
Cisco says that if an inspecting proxy interferes with Webex Calling WebSocket connections, bypassing inspection for *.webex.com may resolve the problem.
Checked 2026-10-14
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- signaling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-14
- Checked
- 2026-10-14
Sources
- Port Reference Information for Webex Calling — Cisco Systems, Inc. (help.webex.com) · tier 2 current vendor documentation · Proxy support section, WebSocket note
Cite this note
APA
WarmTransfer. (2026, October 14). Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-wxc-websocket-bypass. WarmTransfer. https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-wxc-websocket-bypass
BibTeX
@misc{warmtransfer-claim-tls-inspection-uc-clients-wxc-websocket-bypass,
title = {Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-wxc-websocket-bypass},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-wxc-websocket-bypass},
note = {Source note tls-inspection-uc-clients-wxc-websocket-bypass, checked 2026-10-14}
}