Transform the way you CONNECT, COMMUNICATE and COLLABORATE at your Enterprise. These high performance IP PBX appliances for the enterprise provide optimized performance, scalability and redundancy for Enterprise communication networks. Up to 70 Concurrent Calls Up to 600 Extensions 30 Party Conference Supports PRI / SIP / GSM Trunks Auto Attendant & Voice Mail Software based Operator Console. 600 Extension, 70 Concurrent Calls. Supports Analog, Ip Phones, Soft Phones. Auto Attendant And Voice Mail. Multiple Conferences Upto 30 Party. Software Based Operator Console and Call Monitoring.