Source note · Enterprise dial plan design and normalization
A Teams phone number can carry an extension of 1 to 12 digits appended with the case-insensitive ';ext=' delimiter.
Checked 2026-09-23
- Vendor
- Microsoft
- Product
- Teams Phone
- Subsystem
- reverse number lookup
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-23
- Checked
- 2026-09-23
Sources
- Microsoft Teams Dial plans for phone call routing — Microsoft · tier 2 current vendor documentation · Number lookup for inbound calls (Extension bullet)
Cite this note
APA
WarmTransfer. (2026, September 23). Enterprise dial plan design and normalization: source note dial-plan-design-teams-ext-delimiter. WarmTransfer. https://warmtransfer.net/knowledge/claims/dial-plan-design-teams-ext-delimiter
BibTeX
@misc{warmtransfer-claim-dial-plan-design-teams-ext-delimiter,
title = {Enterprise dial plan design and normalization: source note dial-plan-design-teams-ext-delimiter},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dial-plan-design-teams-ext-delimiter},
note = {Source note dial-plan-design-teams-ext-delimiter, checked 2026-09-23}
}