Microsoft has recently made its Direct Routing phone service capability generally available, enabling organizations to use their local phone service provider to make and receive PSTN calls in Microsoft
Direct Routing is a Phone System add-on for Office 365 subscribers that lets organizations use their local phone service provider to make public switched telephone network (PSTN) phone calls. Phone System, formerly called “Cloud PBX,” can be purchased separately, or it’s offered as part of an Office 365 E5 subscription plan.
Direct Routing serves as a kind of telephony stepping stone for organisations using Microsoft Teams, which is Microsoft’s workspace collaboration service. Microsoft Teams provides e-mail and chat for end users, but it also supports the ability to make phone calls through the client interface.
Teams users can take advantage of the Office 365 Phone System, which is in the Microsoft cloud. This is the same phone system that is used by Skype for Business online. For users, that means they can make and receive calls from the Microsoft Teams client.
The benefit of using the Office 365 Phone System is that it gives the Private Branch Exchange (PBX) capabilities without the complicated and expensive equipment.
With the Phone System add-on, Microsoft Teams and Skype for Business Online can be used to complete basic tasks, such as making and receiving calls, transferring calls, and muting or un-muting calls from nearly anywhere with internet access.
The Phone System can be connected to a telephony network in two ways: