Source note · CUCM to Teams Phone migration
The coexistence modes an administrator can set are Islands, Skype for Business only, Skype for Business with Teams collaboration, Skype for Business with Teams collaboration and meetings, and Teams only, and only users homed in the cloud can be given TeamsOnly mode while the other modes apply only to users homed in Skype for Business Server on-premises.
Checked 2026-09-21
- Vendor
- Microsoft
- Product
- Microsoft Teams
- Subsystem
- coexistence
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-21
- Checked
- 2026-09-21
Sources
- Set your coexistence and upgrade settings — Microsoft · tier 2 current vendor documentation · Set upgrade options for a single user in your organization, step 3
Cite this note
APA
WarmTransfer. (2026, September 21). CUCM to Teams Phone migration: source note cucm-to-teams-phone-coexistence-modes. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-coexistence-modes
BibTeX
@misc{warmtransfer-claim-cucm-to-teams-phone-coexistence-modes,
title = {CUCM to Teams Phone migration: source note cucm-to-teams-phone-coexistence-modes},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-coexistence-modes},
note = {Source note cucm-to-teams-phone-coexistence-modes, checked 2026-09-21}
}