3CX natively supports Microsoft Teams. Teams telephony integration provides a low-cost alternative to the Microsoft 365 plan. Users can make calls via 3CX SIP trunks using low-cost (inter)national rates from regional SIP providers. 3CX provides a seamless, consistent calling experience, both for 3CX users dialing Teams users and for Teams users dialing in through an interface they are already familiar with. More importantly, administrators can benefit from a full-featured phone system that is much easier to use and configure than Teams. This includes contact center features such as advanced queuing, reporting, call routing, and more.