Direct routing is another way to connect Microsoft’s phone system to the PSTN via an existing or new third-party telephony provider. It offers an excellent alternative to relying exclusively on the Microsoft environment for your phone calls. A provider, which could be your local telecommunications provider, offers the necessary cloud infrastructure to route incoming and outgoing external calls to Microsoft Teams.
It’s 2021.
If you own something, you not only pay to buy it, but you also pay to run it, troubleshoot it, and upgrade it. What’s the alternative?