Source note · Troubleshooting Teams phone number assignment errors
The TelephoneNumber parameter of Set-CsPhoneNumberAssignment accepts E.164 format (for example +12065551234) and the same digits without the plus sign, and the number cannot carry a 'tel:' prefix.
Checked 2026-09-30
- Vendor
- Microsoft
- Product
- MicrosoftTeams PowerShell module
- Subsystem
- Set-CsPhoneNumberAssignment
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- Teams PowerShell module 3.0.0 or later
- Checked
- 2026-09-30
Sources
- Set-CsPhoneNumberAssignment (MicrosoftTeams) — Microsoft · tier 2 current vendor documentation · Parameters, -TelephoneNumber
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Teams phone number assignment errors: source note teams-number-assignment-errors-no-tel-prefix. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-number-assignment-errors-no-tel-prefix
BibTeX
@misc{warmtransfer-claim-teams-number-assignment-errors-no-tel-prefix,
title = {Troubleshooting Teams phone number assignment errors: source note teams-number-assignment-errors-no-tel-prefix},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-number-assignment-errors-no-tel-prefix},
note = {Source note teams-number-assignment-errors-no-tel-prefix, checked 2026-09-30}
}