Microsoft advises against arranging any service termination with the current provider until all porting activity is complete, because inactive or disconnected numbers cannot be ported.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Microsoft Teams Calling Plans
- Subsystem
- cutover-planning
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- What's a port order? - Microsoft Teams — Microsoft · tier 2 current vendor documentation · When to disconnect your existing phone lines with your current service provider
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting calls that fail to ported numbers after cutover: source note post-port-routing-troubleshooting-teams-no-early-disconnect. WarmTransfer. https://warmtransfer.net/knowledge/claims/post-port-routing-troubleshooting-teams-no-early-disconnect
BibTeX
@misc{warmtransfer-claim-post-port-routing-troubleshooting-teams-no-early-disconnect,
title = {Troubleshooting calls that fail to ported numbers after cutover: source note post-port-routing-troubleshooting-teams-no-early-disconnect},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/post-port-routing-troubleshooting-teams-no-early-disconnect},
note = {Source note post-port-routing-troubleshooting-teams-no-early-disconnect, checked 2026-10-02}
}