User's Manual

MBU 400 Installation Guide 1
Congratulations!
And thank you for choosing Aastra Telecom’s MBU 400.
The MBU 400 consists of a Mobility Base Unit (MBU) and the Aastra
Digital Enhanced Cordless Telephone (DECT) handset (420d) that provide
telephony service over the Internet and over the Public Service Telephone
Network (PSTN) or landlines. You can install the MBU on a desktop or on a
wall, while the 420d handset sits in its charging cradle on a desktop. You can
register up to 8 handsets with the MBU. The MBU supports up to 3 SIP calls
and 1 PSTN call simultaneously.
You can setup your MBU 400 in your business or home environment to act
as a small hub with group calling, voicemail, individual SIP accounts, or SIP
lines shared across a group. Once installed, the handset(s) can handle all
calls for every line (IP calls and PSTN calls). Your System Administrator can
congure your phone via a le transfer of a conguration le over TFTP or
HTTP, a local web interface, or the handset user interface.
The MBU can be connected to the Internet (service provider required)
via an Ethernet cable connected to the LAN port, and/or the PSTN via a
regular telephone cable connected to the LINE (or landline) port. The LINE
connection also allows for emergency calling and provides the handling of
call overow on the MBU.
Congratulations!