Inbound routing to Teams users requires every user and resource account to have a unique number (and extension if used); extensions are only needed when users share a main number without Shared Calling and are otherwise not required or recommended.

Checked 2026-09-30

Vendor
Microsoft
Product
Teams Phone
Subsystem
Reverse number lookup
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). Avaya Aura to Teams Phone: source note avaya-aura-to-teams-phone-rnl-unique-numbers. WarmTransfer. https://warmtransfer.net/knowledge/claims/avaya-aura-to-teams-phone-rnl-unique-numbers

BibTeX

@misc{warmtransfer-claim-avaya-aura-to-teams-phone-rnl-unique-numbers,
  title  = {Avaya Aura to Teams Phone: source note avaya-aura-to-teams-phone-rnl-unique-numbers},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/avaya-aura-to-teams-phone-rnl-unique-numbers},
  note   = {Source note avaya-aura-to-teams-phone-rnl-unique-numbers, checked 2026-09-30}
}

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