Features Specifications:PABX System (CPS-Z) PABX System(CPS-Z) CO. line 1-3 Ext. line 6-8 Multiple Communications Linenormal transform power Power Failure Transfer External Line Caller ID Auto-Attendant (except 108)Outgoing Message Recording (except 108) Internal Music on holding Remote programming Memory protect while power off Auto/Operator mode (except 108)Flexible Ext. No. Assignment Multiple Dial-Out Mode Call Duration Control Call Pickup Outgoing Call Transfer Call Transfer Call Forwarding (except 108) Do Not Disturb (except 108) Automatic EX Reporting (except 108) Flash Time Choice Ringing Assignment Call Restriction Three Way Conference Call all extensions (except 108) Specific Co line dialing (except 108) Ring identify C.O line Booking (except 108) C.O line Reservation (except 108) Operator setting (except 108) CO Monitor