Table of Contents

Mitel 6xx c/d Handsets

The Handset Series 6xx are the native handsets for the Mitel SIP-DECT Infrastructure.

There are currently the following models:

Handsetname Color display Vibration motor Bluetooth proprietarySD slot USB port IP65 CATiq Latest firmware HW revision End of sale end of support
610d (charging port can be added) 5.0.0.SP5 2 most likely
620d 5.0.0.SP5 2 most likely
630d 5.0.0.SP5 2 most likely
650c ? ? ? ? ? ? ? ? ?
612d 7.4.5 3.0.v2.6.12
622d 7.4.5 ?
632d 7.4.5 ?
612dV2 7.4.5 4.0.v2.6.12
622dV2 7.4.5 4.0.v2.6.22
632dV2 7.4.5 ?

It is currently unclear to me if there any other hardware revisions out there.

DECT Infrastructure measurements

Receive strength indicator

Maybe all handsets support enabling a test mode for testing the receive strength of up to 4 dect base stations.

DECT Measure Mode

It is also possible to display all surrounding dect base stations in firmware 7.4.5.

Test/Trace menu structure

Handsets with the 7.4.5 firmware can be switched into a test/trace mode. The default menu structure will be replaced with a menu structure suitable for testing and measurement.

USB-Port

The phone can be charged (slowly) with power through the usb port.

The USB-Port can be used to transfer the phonebook or update the firmware.

USB-port mod for 610d

With a bit of soldering skills it is pretty easy to add USB charging to the 610d handset.

The 610d already has on the PCB the receptables for the USB hardware. USB port and some electronics components are just not soldered. For charging via USB, it is easy to solder a microUSB or miniUSB port there. The “-” power connection is already connected, the “+” power connection needs to be connected with a small wire to the “+” pin of the cradle power input. It best can be done on the other side of the PCB – there is a test point connected with the USB “+” pin, use a multimeter to find out which one. Then the 610d can be charged with a dump 5V USB charger. WARNING: Do not plug in USB and charging cradle power input at the same time, since after this modification both are connected in parallel. It might damage external power supplies (or the computer).

SD-Card slot

The SD card needs to be specially formatted by Mitel. It contains a new DECT portable part identifier. The SD card will be used by the phone to store all configuration and user data including the identifier on the sd card.

Anyone out there with an image of such an sd card?

Firmware update

The firmware can be updated by using the USB port or by update over-the-air.