The TTH 200-45 is an IP PBX designed to provide high-quality, enterprise-class Unified Communications to medium-sized businesses in an easy-to-manage manner. Developed on an advanced hardware platform and software functionalities, the TTH 200-45 series supports up to 200 users and offers a turnkey solution for converged applications for voice, video, data, fax, security surveillance and mobility without license costs Additional charges or recurring charges. User management is fast and smooth. And it's easy to activate new productivity features as you need to keep track of your customers. Always communicate in a more effective way and provide each user with a number to contact coworkers, customers or partners anywhere, anytime and on any device.