When adding numbers in Webex Calling Control Hub, numbers must be in E.164 format for every country except the United States, where national format is also accepted.

Checked 2026-09-23

Numbers must follow the E.164 format for all countries, except for the United States, who can also follow the National format.
Vendor
Cisco
Product
Webex Calling
Subsystem
number management
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-23
Checked
2026-09-23

Sources

Cite this note

APA

WarmTransfer. (2026, September 23). E.164 numbering and dial string normalization: source note e164-numbering-wxc-numbers-e164-or-us-national. WarmTransfer. https://warmtransfer.net/knowledge/claims/e164-numbering-wxc-numbers-e164-or-us-national

BibTeX

@misc{warmtransfer-claim-e164-numbering-wxc-numbers-e164-or-us-national,
  title  = {E.164 numbering and dial string normalization: source note e164-numbering-wxc-numbers-e164-or-us-national},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/e164-numbering-wxc-numbers-e164-or-us-national},
  note   = {Source note e164-numbering-wxc-numbers-e164-or-us-national, checked 2026-09-23}
}

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