Freevoice PBX PRO is a complete VoIP Phone System with a full feature set geared towards todays businesses. Ideal for Small to medium sized office environments who require advanced features like voicemail, call recording, and off-site extensions. This revolutionary software based IP-PBX is built on a reliable Dell PowerEdge server, this platform provides for a reliable and flexible system. The base model handles up to 100 users and 40 active calls, the enterprise model will handle up to 500 users and 96 active calls.