Cisco recommends UDP for Webex media, with a preference order of UDP, then TCP, then TLS, and strongly recommends against TLS for media in production because of possible quality loss, including proxy bottlenecks.

Checked 2026-09-25

Cisco strongly recommends that TLS is not used to transport media in production environments.
Vendor
Cisco
Product
Webex Suite
Subsystem
media-transport
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Voice for remote and home workers: source note remote-worker-voice-webex-udp-preferred. WarmTransfer. https://warmtransfer.net/knowledge/claims/remote-worker-voice-webex-udp-preferred

BibTeX

@misc{warmtransfer-claim-remote-worker-voice-webex-udp-preferred,
  title  = {Voice for remote and home workers: source note remote-worker-voice-webex-udp-preferred},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/remote-worker-voice-webex-udp-preferred},
  note   = {Source note remote-worker-voice-webex-udp-preferred, checked 2026-09-25}
}

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