M365 Business Voice brings business calling into the Microsoft 365 collaboration environment for US deployments. It provides a cloud voice service built around Teams calling, allowing users to place and receive business calls through the same workspace used for chat, meetings, and collaboration. The service is intended for organizations that need a Microsoft-managed voice platform rather than an on-premises phone system. Use the subscription where staff need a consistent calling experience across supported Teams endpoints and work locations. It fits organizations moving desk-phone users, office staff, remote workers, and hybrid teams to cloud communications while retaining a central Microsoft 365 identity and collaboration environment. Business Voice combines core phone-system capabilities with calling and conferencing functions under the US service offering. Part number 8397D4D875FE identifies the US M365 Business Voice ordering option. Select it when the required service is Business Voice for US users, rather than a physical desk phone, gateway, headset, or standalone conferencing device. Assign the subscription to the intended users in the Microsoft 365 tenant and plan calling configuration around the organization’s required numbers, users, and locations.