What is Teams Phone

Publisher

Microsoft (Microsoft Learn)

URL

https://learn.microsoft.com/en-us/microsoftteams/what-is-phone-system-in-office-365

Published

2026-03-03

Updated

unknown

Accessed

2026-09-06

HTTP status

200

License

Microsoft Learn documentation under Microsoft site terms; short excerpts and locators only

Source notes citing this source

• A PSTN solution is separate from a Teams Phone licence: the PSTN solution provides the tenant with phone numbers and PSTN access to domestic, international and emergency calling, while the Teams Phone licence entitles a user to enhanced calling capabilities in the tenant and access to that PSTN solution. in context
• Teams Phone is Microsoft's technology for enabling call control and Private Branch Exchange (PBX) capabilities in the Microsoft 365 cloud, and Microsoft states it allows replacing an existing PBX system. in context
• Microsoft describes Teams Phone as its technology for call control and PBX capabilities delivered in the Microsoft 365 cloud. in context
• By default, calls between Teams users in the same organization are handled natively within Teams and never go to the PSTN. in context
• A single Teams tenant can have more than one PSTN integration, and Microsoft states that any combination of PSTN solutions is supported. in context
• A PSTN solution is separate from a Teams Phone license: the PSTN solution supplies phone numbers and domestic, international and emergency PSTN access, while the Teams Phone license entitles the user to enhanced calling capabilities and access to that PSTN solution. in context
• A Teams Phone license and a PSTN solution are separate requirements: the license grants the calling capabilities while the PSTN solution supplies phone numbers and domestic international and emergency connectivity. in context
• Microsoft states that Teams Phone supports coexistent integrations when an organization has another phone system or a contact center. in context
• A Teams tenant can have more than one PSTN integration and can use any supported combination of PSTN solutions. in context

Cite this source record

APA

WarmTransfer. (2026, March 3). What is Teams Phone. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-what-is-teams-phone

BibTeX

@misc{warmtransfer-ms-learn-what-is-teams-phone,
  title  = {What is Teams Phone},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-what-is-teams-phone},
  note   = {Microsoft (Microsoft Learn), accessed 2026-09-06}
}