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Performance PBX (Phone Exchange) (CPS-S) PBX (CPS-S) Features: 1) CO lines: 2, 4 2) Extension lines: 8, 16 3) Multiple communications lines 4) Norma IP-PBX system (CPS-B 408, 804, 1002) IP-PBX system (CPS-B 408, 804, 1002) 1. System Features Base on Asterisk ...