D-Link DPH-400S(SE) Quick Install Guide
The table below defines the behaviours of different LEDs on the IP
Phone:
LED
Color
Status
Description
Message
Red
Off
No new messages
Blinking
New voice message
1,2,3,4
VoIP line keys
Green
Off
No active line. The phone
is on-hook
Solid
When the line is active
(dialing or during a call)
Blinking
Incoming call while you are
engaged in another call
Speaker key Green
Off
The speaker is not in use
Solid
While in on-hook dialing
mode or hands-free mode
Mute key
Red
Off
The phone is not muted
Solid
The phone is muted
Headset key Green
Off
The headset is not in use
Solid
While in on-hook dialing
mode or hands-free mode
using a headset
All LEDs for
system status
Green
Off
In normal operation mode
Steady
During system booting
Blinking
When system booting failed
or critical error
