Panasonic KX-TA82481 2-CO x 8-Station Port Expansion Card2 Port Analog CO Line and 8 Port Hybrid Extension Combination CardSupport an additional 2 COs and 8 extensionsFor TA824 systemCapacity: 1 per systemAdd to system after 3x8 expansion card..
Panasonic KX-TA82483 3-CO x 8-Station Port Expansion Card3 Port Analog CO Line and 8 Port Hybrid Extension Combination CardSupport an additional 3 COs and 8 extensionsFor KX-TA824 systemCapacity: 1 per system..
Panasonic KX-TA82493 ***REFURBISHED*** Caller ID CardGood Condition3 Port Caller ID CardFor KX-TA824 systemOne included with TA824 control unitCapacity: 3 total per system..