Microsoft recommends that all normalization rules produce numbers starting with + to avoid double normalization, and Direct Routing customers can use trunk translation rules to remove the + if the SBC needs it.

Checked 2026-09-24

Vendor
Microsoft
Product
Microsoft Teams Phone
Subsystem
dial-plans
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 Microsoft Teams Direct Routing: source note teams-direct-routing-setup-dialplan-plus-prefix. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-setup-dialplan-plus-prefix

BibTeX

@misc{warmtransfer-claim-teams-direct-routing-setup-dialplan-plus-prefix,
  title  = {Setting up Microsoft Teams Direct Routing: source note teams-direct-routing-setup-dialplan-plus-prefix},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-setup-dialplan-plus-prefix},
  note   = {Source note teams-direct-routing-setup-dialplan-plus-prefix, checked 2026-09-24}
}

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