10
Getting started
Belt clip & optional headset
For handsfree telephone conversations, you can use any industry standard 
2.5 mm headset (purchased separately). For best results, use an AT&T 2.5 
mm headset. To purchase a headset, visit our website at  
www.telephones.att.com or call 1 (800) 222-3111. In Canada dial  
1 (866) 288-4268.
Lift  the  rubber 
flap here. 
Side of handset
Plug a  2.5 mm  headset 
into the jack on the side 
of  handset  (beneath the 
small rubber flap).
To attach the belt 
clip:
Snap the belt clip 
into the retaining tabs 
on both sides of the 
handset as shown in the 
figure.
To remove the belt 
clip:
Gently lift either of the 
belt clip retaining tabs, 
shown in the figure, 
outwards to remove 
the belt clip from the 
handset.