1.Model: SV108 PABX 2.1 Co lines 8 extensions 3.Rich functions ... information on other pbx models please contact us freely. PBX-SV108 Features 1 CO lines and 8 extensions 1 CO (outside ... CO line calls. EASY SETUP You just connect the PBX-SV108 to your telephone line (CO line), plug in the AC ...