The Local Gateway opens outbound SIP TLS over TCP to Webex Calling on port 8934 for a registration-based trunk or 5062 for a certificate-based trunk, and a certificate-based gateway must also accept inbound TCP 8934 from Webex Calling.

Checked 2026-09-30

Vendor
Cisco
Product
Webex Calling Local Gateway
Subsystem
Firewall
Deployment
on-premises
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up bring-your-own PSTN for Webex Contact Center: source note wxcc-byo-pstn-setup-ports-signaling. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-byo-pstn-setup-ports-signaling

BibTeX

@misc{warmtransfer-claim-wxcc-byo-pstn-setup-ports-signaling,
  title  = {Setting up bring-your-own PSTN for Webex Contact Center: source note wxcc-byo-pstn-setup-ports-signaling},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/wxcc-byo-pstn-setup-ports-signaling},
  note   = {Source note wxcc-byo-pstn-setup-ports-signaling, checked 2026-09-30}
}

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