To avoid double normalisation, Microsoft recommends that Direct Routing customers normalise numbers to include a '+' in dial plans and then remove the '+' with a route-based translation rule if the SBC needs it.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- number translation
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Translate phone numbers for Direct Routing — Microsoft · tier 2 current vendor documentation · Route-based number translations - for outbound calls, Note
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM and Teams Phone coexistence during a migration: source note cucm-teams-coexistence-normalize-plus-then-strip. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-teams-coexistence-normalize-plus-then-strip
BibTeX
@misc{warmtransfer-claim-cucm-teams-coexistence-normalize-plus-then-strip,
title = {Unified CM and Teams Phone coexistence during a migration: source note cucm-teams-coexistence-normalize-plus-then-strip},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-teams-coexistence-normalize-plus-then-strip},
note = {Source note cucm-teams-coexistence-normalize-plus-then-strip, checked 2026-09-25}
}