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Add a corded headset
You can use this telephone hands-free when you install any industry-standard
2.5mm corded telephone headset (purchased separately). For best results, use
an AT&T 2.5 mm corded headset. To purchase a headset, visit our website
at www.telephones.att.com, or call 1 (888) 915-2007. In Canada,
dial 1 (866) 288-4268. See page 37 for instructions on using the corded
headset with this telephone.
Plug a 2.5 mm headset into
the HEADSET jack on the side
of the telephone base.
Side view of the telephone base
IN
T
/PTT
A
LL
E
X
T
1
E
X
T
6
E
X
T
7
E
XT
8
E
X
T
9
E
X
T
0
EX
T
2
E
X
T
3
E
X
T
4
E
X
T
5
IN
T
/PTT
A
LL
E
X
T
1
E
X
T
6
E
X
T
7
E
XT
8
E
X
T
9
E
X
T
0
EX
T
2
E
X
T
3
E
X
T
4
E
X
T
5
NOTE: If you have corded and cordless headsets connected to your telephone base, theIf you have corded and cordless headsets connected to your telephone base, the
HEADSET button only controls the corded headset.
To add a corded headset to the telephone base
14