A manual Port in case in the Phone Number Service Center must include a signed LOA, because Microsoft cannot process a port request without one.

Checked 2026-09-25

Microsoft cannot process a port request without an LOA.
Vendor
Microsoft
Product
Microsoft Teams Phone - Calling Plans
Subsystem
Letter of Authorization
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Porting numbers to Microsoft Teams: source note teams-number-porting-tns-loa-required. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-number-porting-tns-loa-required

BibTeX

@misc{warmtransfer-claim-teams-number-porting-tns-loa-required,
  title  = {Porting numbers to Microsoft Teams: source note teams-number-porting-tns-loa-required},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-number-porting-tns-loa-required},
  note   = {Source note teams-number-porting-tns-loa-required, checked 2026-09-25}
}

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