If a user's phone number is set in on-premises Active Directory and synchronised to Microsoft 365, Set-CsPhoneNumberAssignment can't set the number until it is cleared on-premises and the change has synchronised.

Checked 2026-10-01

Vendor
Microsoft
Product
Microsoft Teams PowerShell module
Subsystem
Set-CsPhoneNumberAssignment
Deployment
hybrid
Region
not restricted
Release range
MicrosoftTeams module 3.0.0 or later
Checked
2026-10-01

Sources

Cite this note

APA

WarmTransfer. (2026, October 1). Troubleshooting a missing Teams dial pad and PSTN calling: source note teams-dial-pad-missing-onprem-ad-number-blocks. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-dial-pad-missing-onprem-ad-number-blocks

BibTeX

@misc{warmtransfer-claim-teams-dial-pad-missing-onprem-ad-number-blocks,
  title  = {Troubleshooting a missing Teams dial pad and PSTN calling: source note teams-dial-pad-missing-onprem-ad-number-blocks},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-dial-pad-missing-onprem-ad-number-blocks},
  note   = {Source note teams-dial-pad-missing-onprem-ad-number-blocks, checked 2026-10-01}
}

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