Introduction
Expanding your phone system
You can expand your phone system by registering optional handsets (6 max.) to a single base unit.
L Optional handsets may be a different colour from that of the supplied handsets.
Optional handset feature overview
Feature
Handset
Display colour/size
Control type
*2
Headset socket
Belt clip
Shock and splash
*1
resistance
*1 This design protects from splashes and occasional dropping.
*2 Only telecommunications compliance labelled headset should be plugged into the headset socket
on the handset.
4
KX-TGA641AZ
Monochrome/1.8 inches
Navigator key (Up/down)
–
–
–
KX-TGA648AZ
Monochrome/1.4 inches
Navigator key (Up/down/left/right)
r
r
r
(IP 54 Standard).