Cisco states that for network topologies using firewalls within a customer premise the administrator must allow the media source and destination port ranges inside the network for the media to flow, and gives the Webex App example of allowing audio 8500 to 8599 and video 8600 to 8699 as both source and destination.

Checked 2026-09-16

Vendor
Cisco
Product
Webex Calling
Subsystem
network
Deployment
not restricted
Region
not restricted
Release range
not restricted
Checked
2026-09-16

Sources

Cite this note

APA

WarmTransfer. (2026, September 16). Webex Calling ICE media path optimization: source note wxice-premises-firewall-must-allow-internal-media. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxice-premises-firewall-must-allow-internal-media

BibTeX

@misc{warmtransfer-claim-wxice-premises-firewall-must-allow-internal-media,
  title  = {Webex Calling ICE media path optimization: source note wxice-premises-firewall-must-allow-internal-media},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/wxice-premises-firewall-must-allow-internal-media},
  note   = {Source note wxice-premises-firewall-must-allow-internal-media, checked 2026-09-16}
}

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