When migrating on-premises-assigned Direct Routing numbers, the number is out of service during the migration. Microsoft advises coordinating with the operator before running Set-CsUser -Identity <user> -LineURI $null in Skype for Business Server PowerShell.

Checked 2026-09-23

The phone number will be out of service during the migration, so coordinate with your Operator Connect operator before you begin.
Vendor
Microsoft
Product
Microsoft Teams Phone
Subsystem
migration
Deployment
hybrid
Region
not restricted
Release range
current as of 2026-09-23
Checked
2026-09-23

Sources

Cite this note

APA

WarmTransfer. (2026, September 23). Teams Operator Connect and Azure Communication routing: source note teams-operator-connect-dr-onprem-outage. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-operator-connect-dr-onprem-outage

BibTeX

@misc{warmtransfer-claim-teams-operator-connect-dr-onprem-outage,
  title  = {Teams Operator Connect and Azure Communication routing: source note teams-operator-connect-dr-onprem-outage},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-operator-connect-dr-onprem-outage},
  note   = {Source note teams-operator-connect-dr-onprem-outage, checked 2026-09-23}
}

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