Normalization rules whose first token is optional (for example ^0?(999)$) are not supported on 3PIP devices such as the Polycom VVX 601. Microsoft advises splitting such a rule into two rules.

Checked 2026-09-24

Vendor
Microsoft
Product
Teams Phone
Subsystem
normalization-rules
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). Teams voice routing policies and dial plans: source note teams-voice-routing-nr-3pip-optional-token. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-voice-routing-nr-3pip-optional-token

BibTeX

@misc{warmtransfer-claim-teams-voice-routing-nr-3pip-optional-token,
  title  = {Teams voice routing policies and dial plans: source note teams-voice-routing-nr-3pip-optional-token},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-voice-routing-nr-3pip-optional-token},
  note   = {Source note teams-voice-routing-nr-3pip-optional-token, checked 2026-09-24}
}

Read in context