SIP Gateway supports dynamic emergency calling for devices that share network attributes (local IP and subnet length, or chassis ID and port) provisioned in the Teams admin center; otherwise it falls back to registered addresses, which are not supported for Direct Routing.

Checked 2026-09-30

Currently, registered addresses are not supported for Direct Routing scenarios.
Vendor
Microsoft
Product
Microsoft Teams Phone
Subsystem
SIP Gateway emergency calling
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up SIP Gateway for Cisco and Poly phones on Teams: source note teams-sip-gateway-setup-e911-attributes. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-setup-e911-attributes

BibTeX

@misc{warmtransfer-claim-teams-sip-gateway-setup-e911-attributes,
  title  = {Setting up SIP Gateway for Cisco and Poly phones on Teams: source note teams-sip-gateway-setup-e911-attributes},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-setup-e911-attributes},
  note   = {Source note teams-sip-gateway-setup-e911-attributes, checked 2026-09-30}
}

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