3 LEM-1DLC with 1 SP-20N/A Ceiling Speaker

1 LE-D Door Station, 3 LEM-1DL Answering Stations

1 LS-NVP Door Station, 3 LEM-1DL Answering Stations

2 LEM-1DLC with SP-20N/A Ceiling Speaker, with Call Button

1 LE-D Door Station, 4 LEM-1DL Answering Stations

1 LE-D Door Station, 4 LEM-1DLC Answering Stations

1 LE-D Door Station, 2 LEM-1DLC Answering Stations, with External Signaling