The Webex Calling port reference notes that browsers use ephemeral UDP source ports for WebRTC media, which can be constrained with the WebRtcUdpPortRange browser policy delivered through a device management profile.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- webrtc-media-ports
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Port Reference Information for Webex Calling — Cisco Systems, Inc. (help.webex.com) · tier 2 current vendor documentation · table under 'IP Subnets for Webex Calling services', WebRTC call media row, Notes column
Cite this note
APA
WarmTransfer. (2026, October 2). Webex Contact Center network and browser requirements for agents: source note wxcc-network-requirements-webrtc-udp-port-policy. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-network-requirements-webrtc-udp-port-policy
BibTeX
@misc{warmtransfer-claim-wxcc-network-requirements-webrtc-udp-port-policy,
title = {Webex Contact Center network and browser requirements for agents: source note wxcc-network-requirements-webrtc-udp-port-policy},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxcc-network-requirements-webrtc-udp-port-policy},
note = {Source note wxcc-network-requirements-webrtc-udp-port-policy, checked 2026-10-02}
}