MX250 IP Phone System

The MX250 Enterprise class IP PBX combines best of breed features in one efficient, 99.999% reliable and secure appliance. Based on open standards: SIP (not open source), ZULTYS’ MX platform line of IP PBX packs its servers with unified messaging features, conferencing, soft phones, ACD, and much more, all running from one thin multi platform application, without requiring an external server.

"We are currently running six MX 250 IP PBXs in six separate cities across three counties and two phone companies. ...one of the smoothest major changes I have ever had."