User’s manual
TL7910
DECT 6.0 cordless headset    
Table of contents
Getting started
Introduction .................................... 1
Quick reference guide - 
headset ......................................... 2
Headset lights ........................... 2
Headset alert tones ................ 4
Quick reference guide - 
headset base ............................. 5
Headset base lights ................ 5
Installation ...................................... 8
Colored labels ........................... 8
Digital subscriber line 
(DSL) ............................................... 8
Battery installation ..................... 9
Headset base installation 
and battery charging .......... 10
Headset base installation .......11
Installation options ................ 11
Option 1: Connect the 
headset to a telephone 
wall jack ......................................12
Option 2: Connect the 
headset to a corded 
phone ........................................... 13
Option 3: Connect 
the headset to your 
computer .................................... 15
Headset attachments ............... 18
Earbud .......................................... 18
Over the ear hook ..................19
Over the head band .............. 22
Behind the neck band .......... 24
Operation
Headset operation ..................... 27
Power on/off the 
headset ........................................27
PHONE mode and 
PC mode .....................................27
PHONE mode................................28
Make a call.................................28
Answer a call ............................ 28
End a call .................................... 29
Voice command .......................29
Headset ringer .........................29
Caller ID announce ................30
Temporary ringer 
silencing ......................................30
Call waiting ................................ 30
Options while on calls ............. 31
Volume control ........................31
Mute .............................................. 32
Switching between PHONE 
mode and PC mode .............. 33