Microsoft certifies and supports three emergency services providers for Direct Routing - Bandwidth Dynamic Location Routing, Intrado Emergency Routing Service and Inteliquent - and may reject support cases if a non-certified provider is used.

Checked 2026-09-16

Microsoft certifies and supports the following emergency services providers. If a non-certified provider is used, Microsoft may reject support cases.
Vendor
Microsoft
Product
certified SBC list
Subsystem
emergency services
Deployment
multi-tenant
Region
us-focused (911 service providers named)
Release range
current as of 2026-09-16
Checked
2026-09-16

Sources

Cite this note

APA

WarmTransfer. (2026, September 16). CUCM to Teams Phone migration: source note cucm-to-teams-phone-sbc-911-providers. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-sbc-911-providers

BibTeX

@misc{warmtransfer-claim-cucm-to-teams-phone-sbc-911-providers,
  title  = {CUCM to Teams Phone migration: source note cucm-to-teams-phone-sbc-911-providers},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-sbc-911-providers},
  note   = {Source note cucm-to-teams-phone-sbc-911-providers, checked 2026-09-16}
}

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