If a user's effective Teams dial plan applies no normalization rule to a dialed number, the Teams service dial plan prepends '+CC', where CC is the country or region code of the user's usage location.

Checked 2026-09-23

Vendor
Microsoft
Product
Teams Phone
Subsystem
dial plans
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-teams-service-prepends-cc. WarmTransfer. https://warmtransfer.net/knowledge/claims/e164-numbering-teams-service-prepends-cc

BibTeX

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

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