For Teams Calling Plan ports in the US or Canada, numbers moving from Direct Routing or Operator Connect cannot be pre-assigned, but an existing assignment can be kept if each number has a Calling Plan licence and emergency location before port completion.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Microsoft Teams Calling Plans
- Subsystem
- inbound-routing
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Transfer phone numbers to Microsoft Teams — Microsoft · tier 2 current vendor documentation · What's the status of your port orders? > Approved (FOCAccepted) row
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting calls that fail to ported numbers after cutover: source note post-port-routing-troubleshooting-teams-us-preassign-rules. WarmTransfer. https://warmtransfer.net/knowledge/claims/post-port-routing-troubleshooting-teams-us-preassign-rules
BibTeX
@misc{warmtransfer-claim-post-port-routing-troubleshooting-teams-us-preassign-rules,
title = {Troubleshooting calls that fail to ported numbers after cutover: source note post-port-routing-troubleshooting-teams-us-preassign-rules},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/post-port-routing-troubleshooting-teams-us-preassign-rules},
note = {Source note post-port-routing-troubleshooting-teams-us-preassign-rules, checked 2026-10-02}
}