Model 391 Application Firmware

File Name: M391.bin

Version History:

Version: 2.2
Release Date: 02-Aug-2022
Description: Fixes bug where Mode 1 and 2 Visual Alert Minimum On Time and Audio Alert On Delay settings would not be saved. The user may need to restore the unit to Factory Defaults after loading this update.

Version: 2.1
Release Date: 17-Dec-2021
Description: Adds UDP Command option to Call Source selection. Improves communication with STcontroller; now supports updating multiple instances on changes. Configurable in STcontroller version 3.07.00 or greater.

Version: 1.2
Release Date: 08-Nov-2018
Description: Adds dual-channel call detection and indication. (Call detection source can now be selected for channel 1 and 2.) Now detects an audio signal of 17.6 kHz and above as being an active call signal. (Added to allow an 18 kHz TOX (tone-operated-interrupt) IFB signal to be detected as a call signal. Supports integration with Studio Technologies REMI/At-Home implementations.) Adds 10 kHz low-pass filter to line output when On When Call Active mode is selected. Increases Mode button press and hold time. Configurable in STcontroller version 1.07.00 or greater.

Version: 1.1
Release Date: 19-Apr-2018
Description: Initial Release. Configurable in STcontroller version 1.05.00 or greater.
