• Compatible KX-TDE600 and KX-TDA600 Panasonic Phone Systems
• 16-Port Loop Start Co Trunk Card (ELCOT16)
• 16 Ports per Card
• 4 Port w/ Power Failure Transfer
• 1 Card Requires 1 Free Slot
• Supports Up to two Optional (KX-TDA0193) 8 Port Caller ID Card
• Can be Mounted to Support Caller ID