Webex Calling media optimization runs in 4 phases: candidate discovery in which an endpoint collects its local address and a server reflexive address obtained by querying a STUN server in the Webex Calling cloud, candidate exchange in which endpoints exchange those addresses using SIP, connectivity checks in which the endpoints test the exchanged candidates, and media path optimization in which a re-INVITE moves the media onto the chosen path.

Checked 2026-09-16

Vendor
Cisco
Product
Webex Calling
Subsystem
Media optimization
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-four-phases. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxice-four-phases

BibTeX

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

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