Configure routing options for unassigned phone numbers

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/microsoftteams/routing-calls-to-unassigned-numbers

Published

2025-04-24

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• An unassigned number treatment whose range includes numbers still homed on Unified CM would probably also catch outbound Teams calls to those users and apply the treatment instead of sending them to the SBC, so ranges should probably exclude numbers still on Unified CM. inferred in context
• Unassigned number treatment checks the called number on both inbound calls to Teams and outbound calls from Teams, so an outbound call to an external number inside a configured range follows the treatment. in context
• Teams unassigned number routing can send calls for unassigned numbers, one at a time or as a regex range, to a user, a resource account for an auto attendant or call queue, or an announcement; Microsoft advises range rules over thousands of single-number rules. in context

Cite this source record

APA

WarmTransfer. (2025, April 24). Configure routing options for unassigned phone numbers. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-unassigned-number-routing

BibTeX

@misc{warmtransfer-ms-learn-unassigned-number-routing,
  title  = {Configure routing options for unassigned phone numbers},
  author = {{WarmTransfer}},
  year   = {2025},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-unassigned-number-routing},
  note   = {Microsoft, accessed 2026-09-25}
}