MBU - Top View
MBU - Top and Rear Views
MBU - Rear View
POWER CONNECTION
RESET BUTTON
for activating configuration changes and enabling handset registration
CALL INDICATOR Call indicator flashes during firmware update. Constant light indicates landline or Internet call in progress.
VoIP INDICATOR Indicates that the MBU is connected to the Internet Telephony Service Provider
POWER INDICATOR Illuminates when power is on
Telephone Line
CONNECTION PORT (PSTN)
LAN CONNECTION PORT
for Ethernet cable