The configuration process for Direct Routing is pretty tedious. Your PSTN Service – or Network Provider needs to connect with the Phone System within your Microsoft Tenant. You then enable users with the option of Calling in Teams. This requires assigning users with a phone system license. Configure their phone number and enable voicemail and voice. After that Voice routing must be configured which includes a Voice routing policy, Voice routes number patterns, and an online PSTN gateway and Voice routing with one PSTN usage. Lastly, you have to Apply the Number Translation Rules Policy to translate inbound and outbound numbers. A lot of manual work, which can be fully automated by a Teams specialized PSTN Network Provider like MachCloud.
DID YOU FIND THIS INTERESTING? WHY NOT READ: “Securing your SBC Microsoft Teams Direct Routing effectively“?