C. Office 365 License Requirements

Office 365 Tenant Licenses

In order to be able to use Microsoft Teams with the DFN VoIP-Centrex Telephone System, one of the following Microsoft license is required for each user:

  • Office 365 E1, E3, A1 or A3 + telephone system or
  • Microsoft 365 E3 or A3 + telephone system or
  • Office 365 E5 or Office 365 A5 or
  • Microsoft 365 E5 or Microsoft 365 A5 or Microsoft F3
  • Office 365 Business Essentials, Office 365 Business Premium or Microsoft 365 Basic or Microsoft Business Standard or Microsoft 365 Business Premium + Microsoft 365 Business Voice - without call plan (direct routing)

The information printed above is correct as of December 2019. For more information, please visit Microsoft website, or contact your Microsoft Partner.

FQDN-Domain license required

Attention for the FQDN domain registration "KXXXX-01.customers.teams-pbx.cloud" you still need at least one E1 license on top.