Samsung DS5021D - Manual (Page 46)

Page 32 © SAMSUNG Electronics Co., Ltd.
THINGS YOU SHOULD KNOW
8. Button LED
The [Transfer] button, [Hold] button, and [Speaker] button have a LED that turns on or off
according to the phone status.
For incoming external calls or intercom calls ringing at your digital phone the trunk button
LED or Call button LED will flash green. The trunk button LED will flash red on other digital
phones with the same trunk button. While holding a call, the green LED of the trunk line will
blink.
In the following table, the functions of LEDs are summarized.
Functions Button LED Status
Trunk line or functions are in use LED is steady green.
New call is ringing LED is a fast flashing green.
While a call is on hold LED is a slow flashing green or red.
A call recalling to the digital phone LED is a slow flashing yellow.
Transfer
Hold
Speaker