Features:

• CPS-P308 (3 C.O. lines + 8 Ext.) non-expandable
• CPS-P416 (4 C.O. lines + 16 Ext.) expandable, minimum capacity is 4/16, and maximum capacity is 8/32
• Switch Power
• Power Failure Transfer
• Auto-Attendant(DISA:20s three paragraphs)
• Auto/Operator Mode
• Automatic C.O. Line Detected
• Private Password & System Password
• C.O. Line Transfer to C.O. Line
• Day/night Mode(auto) + Alarm Clock
• Doorphone Function
• Auto-routing
• Keyphone Function & Transfer Caller ID(optional)
• PC Billing System(optional)
• Backup Battery Interface(optional)
• 4 jacks of C.O. line expansion card(optional)
• 8 jacks of Ext. expansion card.(optional)