Microsoft says a Calling Plan port typically takes 7-14 days end to end and up to 30 days depending on the losing carrier; the US needs at least 5 days' lead time, Canada at least 10, and the target date cannot be more than 30 calendar days out.

Checked 2026-09-25

Vendor
Microsoft
Product
Teams Calling Plans
Subsystem
number porting
Deployment
multi-tenant
Region
us and canada lead times; 7-14 days general
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM and Teams Phone coexistence during a migration: source note cucm-teams-coexistence-port-lead-times. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-teams-coexistence-port-lead-times

BibTeX

@misc{warmtransfer-claim-cucm-teams-coexistence-port-lead-times,
  title  = {Unified CM and Teams Phone coexistence during a migration: source note cucm-teams-coexistence-port-lead-times},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-teams-coexistence-port-lead-times},
  note   = {Source note cucm-teams-coexistence-port-lead-times, checked 2026-09-25}
}

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