User's Manual

Avaya Inc. – Proprietary.
Use pursuant to the terms of your signed agreement or Avaya policy.
1
avaya.com
Document Type Technical Bulletin
Date: 25 May 2015
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Avaya 4000 Series DECT:
Technical Support Update
Introduction
This update has been issued to communicate about new versions of Avaya products released.
Avaya introduces updated DMC DECT firmware version and updated firmware for 4075 Handset release 5 or later.
Effective January 1, 2014 Avaya will no longer offer for sale or make commercially available the DECT Messenger products.
Effective April 1, 2014 Avaya will no longer offer for sale or make commercially available the DMC DECT and SIP DECT products for
CS1000 DECT system.
The resent version of Avaya 4000 Series DECT related software could be found at Avaya Support page:
http://support.avaya.com/products/P0607/4000-series-dect-handsets/releaseId
Main Topic
4075 Handset
Avaya introduces 4075 Handset hardware version 5 with a new accelerometer (used for the Mandown feature).
The latest version of the 4075 handset’s firmware is:
3.19
Handset SW version can be checked by:
Menu -> Settings -> General Settings -> Status
Version 3.19 includes the following changes compared to version 3.17:
- new Accelerometer driver support
- unsupported firmware downgrade block for handset hardware version 5 and earlier (air upgrade only)
Note:
If you try to downgrade the handset to the unsupported firmware, the system does not show update process, no error message
occurs.
Downgrade to an older unsupported firmware is not blocked if using the USB upgrade tool.