Panasonic KX-TDA6174 ESLC16 Single Line Extension Card Routers The ESI 55 5000-0737 features

The ESI 55 5000-0737 features thirty programmable buttons

The 4TRM (KPOS71BTRM/XAR) card supports four CO line circuits and installs as a daughterboard on the Samsung OfficeServ UNI KPOS71BUNI/XAR

If you need those please visit our ESI DFP and IPFP replacement handsets page

Provides a female V

Panasonic KX-T7730X-B Digital Description:

Panasonic KX-TDA6174 ESLC16 Single Line Extension Card Routers The ESI 55 5000-0737 featuresPanasonic KX TDA6174 ESLC16 Description: Panasonic KX TDA6174 ESLC16 Single Line Extension Card Panasonic KX TDA6174 Features: 16 Ports 4 Port Power Failure Transfer 16 DTMF Receivers Compatibility: Panasonic TDA600 Panasonic TDE600 Includes: (1) Panasonic KX TDA6174 ESLC16 Single Line Extension Card