Call2Teams is a cloud service that seamlessly integrates Microsoft Teams with existing phone systems, enabling businesses to leverage Teams for voice calling without the need to replace their current telephony infrastructure. The service is designed to work with any phone system or PBX and is compatible with a wide range of service providers. Call2Teams facilitates direct routing, allowing users to make and receive calls in Teams using their existing numbers. The platform is easy to set up, scalable, and requires no additional hardware, making it a cost-effective solution for organizations seeking to enhance their communication capabilities.