In simple terms, Direct Routing for Microsoft Teams enables external calling from Microsoft Teams users to place and receive calls directly from the platform. Direct Routing allows organizations to select a third-party service provider, like Sona to provide voice lines to their Office 365 Tenant, enabling them to use Microsoft Teams to make and receive calls.
Sona offers SBCs support of Direct Routing for individual enterprise Teams tenants, as well as for multi-tenancy scenarios (hosted service provider model) In both cases, Sona SBCs can be deployed as virtualized or cloud-native solutions in private (e.g. VMWare, KVM) or public clouds (e.g. Azure and AWS), or as on-premises appliances.