If one voice routing policy has both a specific route for Unified CM-held numbers and a broad catch-all PSTN route in separate PSTN usages, the Unified CM usage probably has to come first, or calls to Unified CM users would leave through the catch-all route.
inferred · Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- voice routing
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Status
- inferred
- Checked
- 2026-09-25
Sources
- Configure call routing for Direct Routing — Microsoft · tier 2 current vendor documentation · Example 2 Note on PSTN usage order; Step 3 ordering bullets
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM and Teams Phone coexistence during a migration: source note cucm-teams-coexistence-inf-usage-order-pbx-first. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-teams-coexistence-inf-usage-order-pbx-first
BibTeX
@misc{warmtransfer-claim-cucm-teams-coexistence-inf-usage-order-pbx-first,
title = {Unified CM and Teams Phone coexistence during a migration: source note cucm-teams-coexistence-inf-usage-order-pbx-first},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-teams-coexistence-inf-usage-order-pbx-first},
note = {Source note cucm-teams-coexistence-inf-usage-order-pbx-first, checked 2026-09-25}
}