In addition to several new AI features, Microsoft today announced that they will bring new enterprise-grade calling features to Teams later this year. Direct Routing will be joining Calling Plans as one of the options for Calling in Microsoft Teams and in addition they are planning to bring consultative transfer and call delegation and federation.
Direct Routing is a capability of Phone System in Office 365 to help customers connect their SIP trunks to Microsoft Teams. In the simplest deployment model, customers start with SIP trunks from their telecommunications provider. Next, customers will use and configure a supported Session Border Controller (SBC) from one of our certified partners. Finally, they will connect their SBC to Microsoft Teams and Phone System.
Along with Microsoft Calling Plan or Direct Routing with Phone System for Office 365, Microsoft Teams can replace Skype for Business for most enterprise customers. Microsoft is planning to release these features in the second quarter of 2018.
Learn more about this feature here.