About your 743X/744X handset
A
C B
D F G HH
I
JL
K
E
AMessage indicator light
Flashes when you have a message waiting.
BVolume control
Adjusts the handset and ringer volume.
CDisplay
Shows call information, handset status icons, and guides you through features and option menus.
DHeadset connector
Only available on handset 744X.
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