The gateway's 'ip address trusted list' should contain the regional Webex Calling data-centre subnets plus the addresses of Unified CM servers (if used) and PSTN trunk gateways.

Checked 2026-09-24

Vendor
Cisco
Product
Cisco IOS XE CUBE
Subsystem
Local Gateway toll-fraud protection
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Setting up a Webex Calling Local Gateway: source note webex-calling-local-gateway-setup-trusted-list-contents. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-local-gateway-setup-trusted-list-contents

BibTeX

@misc{warmtransfer-claim-webex-calling-local-gateway-setup-trusted-list-contents,
  title  = {Setting up a Webex Calling Local Gateway: source note webex-calling-local-gateway-setup-trusted-list-contents},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/webex-calling-local-gateway-setup-trusted-list-contents},
  note   = {Source note webex-calling-local-gateway-setup-trusted-list-contents, checked 2026-09-24}
}

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