Aastra MBU 400 User Guide 19
Getting Started
Registering the 420d Handset
Each handset must be registered with your MBU 400 gateway before it can be used. If
the handset is not registered, one of the following message appears on the handset
displays:
Searching for Gateway
or
Please place handset in charger to start auto-registration with the gateway.
Reset the gateway to enable registration mode.
To register your handset do the following.
1. Ensure the base unit is connected to power.
2. Place the handset in the charger.
3. If the handset does not register automatically, press and release the RESET button
on the side of the MBU 400.
Pressing RESET reboots the MBU, following which it remains in registration
mode for 5 minutes. More than one handset can be registered in this period. To start
a new 5 minute registration period, press and release the RESET button again.
Successful registration ends with the idle screen on the handset as shown in the
section Handset Idle Screen on page 25.
Note: If you encounter problems registering your handset, try removing the handset
from the charger and replacing it, then resetting the MBU once again. If you have
changed the gateway access code, see Changing the Access Code on the Handset on
page 29 to change the handset access code so it matches the gateway.
Handsets can be registered and de-registered through the handset menu options. See
Manually Registering/De-registering a Handset on page 60 for further information.
VOIP Remains lit when the MBU is connected to an Internet
Telephony Service Provider.
CALL Remains lit when a call is in progress (for both landline and
Internet calls).
Flashes during firmware updates.
RESET
(side panel)
Press to reboot the unit, activate configuration changes, and
enable handset registration mode.
Press and hold 15 seconds to reboot with factory default
settings. All front panel lights come on when a factory restart is
initiated.
NOTE: Configuration settings are lost during a factory default.
DC 9-20V
(side panel)
Indicates the power connection.
LAN
(side panel)
Indicates the Internet port.
LINE
(side panel)
Indicates the Telephone Line Connection port (PSTN).
Label (Continued) Description (Continued)