The Aiphone GTA-DES is an audio entrance station for the GT Multi-Unit entry system. This unit is equipped with an audio module for communication, a 10-key keypad allows for direct digital dialing and a VFD display for a greeting message, tenant names & numbers, and system status. The Aiphone GTA-DES offers a user guide that can be configured to display any one of six languages. The guide provides operational assistance by lighting the appropriate icon as well as audible guidance.

The Aiphone GTA-DES works on a common bus wiring system, carrying the calling and communication functions on a 2 conductor wire. A separate power supply provides voltage for the digital display, while the power for the audio is supplied on the common bus wires. The entrance station is designed to be semi-flush mounted and has an optional rain hood or hooded surface mount box to be used as necessary.

Audio and video entrance panels are intermixable within a system, as are audio and video tenant stations. The system allows up to two video stations and two audio stations to be used in the same tenant location (f using the Aiphone GT-2C, use only additional GT-2H for total of 4 stations within a tenant location). Communication is hands free at the entrance station when a tenant answers the call.