The Panasonic KX-TDA6178 24-Port Single Line Telephone Extension Card with Caller ID (ECSLC24) adds 24 single line telephone (SLT) extensions to your Panasonic KX-TDE600 or TDA600 system. It supports Caller ID on compatible SLTs and includes 4 built-in power failure transfer circuits for uninterrupted communication.

• Adds 24 SLT ports with Caller ID support

• Compatible with Caller ID-enabled single line telephones

• Includes 4 power failure transfer circuits for added reliability

• Requires one available slot in the system and an L-type power supply (KX-TDA0103)

• Designed for Panasonic KX-TDA600 and KX-TDE600 systems