In Islands mode, PSTN voice services are handled by Skype for Business rather than Teams, and Teams Phone System isn't supported in Teams.
Checked 2026-10-01
Microsoft Teams Phone System isn't supported in Teams in Islands mode.
- Vendor
- Microsoft
- Product
- Microsoft Teams
- Subsystem
- coexistence mode
- Deployment
- hybrid
- Region
- not restricted
- Release range
- current as of 2026-10-01
- Checked
- 2026-10-01
Sources
- Understand Microsoft Teams and Skype for Business coexistence and interoperability — Microsoft · tier 2 current vendor documentation · Section 'Islands mode', bullet list and following sentence
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting a missing Teams dial pad and PSTN calling: source note teams-dial-pad-missing-islands-no-phone-system. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-dial-pad-missing-islands-no-phone-system
BibTeX
@misc{warmtransfer-claim-teams-dial-pad-missing-islands-no-phone-system,
title = {Troubleshooting a missing Teams dial pad and PSTN calling: source note teams-dial-pad-missing-islands-no-phone-system},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-dial-pad-missing-islands-no-phone-system},
note = {Source note teams-dial-pad-missing-islands-no-phone-system, checked 2026-10-01}
}