Avaya ABT-34 User Manual
Page 10
 
10
VOLUME & MUTE
LISTEN VOLUME - HOW OTHERS 
SOUND TO YOU
1. Adjust the listen volume adjust +/– button
(A) to a comfortable level.
2. If you cannot find a comfortable listen level,
try different settings (1–4) on the listen volume 
major adjust switch (B) as shown until a 
satisfactory sound level is experienced. 
Note: This setting only adjusts the 
headset listen level on calls placed using 
the desk telephone and cannot adjust the 
headset listen volume when used with a 
mobile phone.
Important: Too high a listen volume can 
cause audio problems. Please refer to
the Troubleshooting section at the end
of this guide.
SPEAK VOLUME – HOW YOU 
SOUND TO OTHERS
. Adjust the speak volume fine adjust buttons (A)
until the level is comfortable for the recipient.
2.
1.
If larger change is needed, try different 
settings (A–D) on the speak volume major 
adjust switch (B) on bottom of base.
Note: This setting only adjusts the 
headset speak level on calls placed 
using the desk telephone and cannot 
adjust the headset speak volume when 
used with a mobile phone.
Important: Too high a speak volume 
can cause audio quality problems.
Please refer to the Troubleshooting
section at the end of this guide.
MUTE BUTTON
To mute a call, short press (<1 second) the 
power/mute button once. A tone will sound every 
15 seconds while mute is on. 
To take the call off mute, short press (<1 second) 
the button again.
Important: Too long a press (>3 seconds)
will power off the headset.
B
A