NEC RG-G200LV Instruction Manual page 17

Indicators
Name
VoIP
<RG-G200LV>
(4)
Option
<RG-G201L>
Port
Name
(5) USB port
Note 1: Connect the USB device to this port directly.
Display Color of lamp
Illuminating in green. VoIP is available.
Blinking in green.
Illuminating in red.
OFF
This LED is for future use.
Display Description
Connect the USB device to this port.
Condition
During a call.
VoIP is
failure).
Not in use.
17
unavailable (Registration