60 Aastra MBU 400 User Guide
Additional Features
Additional Features
This section describes other tasks you can perform, if required, on the MBU and the
Aastra 420d Handsets.
Resetting the MBU
In order for handsets to register with the MBU you must press the RESET button on
the rear of the MBU. Each time you reset the MBU, the handsets must re-register.
Make sure handsets are within range of the MBU to register properly.
Note: When you reset the MBU, the MBU waits until active calls have been
completed on the handsets before starting the reset process. If a registered handset is
off during an MBU reset, it reconnects when turned on as long as the MBU was not
factory defaulted.
To reset the MBU:
• Press and release the RESET button on the rear of the MBU (do not hold it down)
On the front of the MBU, POWER lights steadily during a reset and I-NET flashes.
When the reset is complete I-NET lights steadily, indicating the MBU is ready to
use.
Note: Check to be sure all handsets are registered (or reconnected) properly with
the MBU after the reset is complete.
Manually Registering/De-registering a Handset
Handsets will usually register without any action on your part if they are close to the
MBU 400 after a reset. If required, you can manually register and deregister a
handset. Make sure your handset is within range of the MBU.
To register or deregister the handset do the following.
1. In Idle mode, press OK z to display the Main Menu.
2. Select Settings and press OK z.
3. Select System settings, and press OK z.
4. Select Handset settings, and press OK z.
5. Select Register handset or Deregister handset and press the Yes softkey at the
prompt.
If registering, the handset prompts to be placed in its charger cradle so auto-
registration can occur.
Listing all Registered Handsets
To view a list of all registered handset do the following.
1. In Idle mode, press OK z to display the Main Menu.
2. Select Settings and press OK z.
3. Select System settings, and press OK z.
4. Select Handset settings, and press OK z.