The AT&T compatible DECT 6.0 cordless headset (AT&T model
TL7600) functions as an extension of the telephone base.
The cordless headset cannot be used for PTT calls. It cannot
initiate an intercom call, but can receive one if it is called by
the telephone base, a handset or a deskset.
To register and deregister a TL7600 headset to the SynJ
SB67138 telephone base, please refer to pages 12-13. To
view the TL7600 manual, visit our website at
www.telephones.att.com, or call 1 (888) 915-2007.
In Canada, dial 1 (866) 288-4268.
Cordless headset extension number
The cordless headset is always assigned extension
number 0 regardless of how many handsets are registered.
By pressing the ON
/OFF button on the cordless headset,
you can see the extension
0
icon on the telephone
base screen.
Switch between corded or cordless handset, telephone speakerphone and
cordless headset
Use the following instructions to switch between the telephone base
components (corded handset, speakerphone, corded headset and cordless
headset). You must use the intercom system (page 50) to switch between the
base and the cordless handsets.
To switch from corded handset, corded headset, or
speakerphone to cordless headset:
During a call, press the ON
/OFF button on the
cordless headset.
To switch from cordless headset to corded handset,
corded headset, or speakerphone:
During a call, lift the corded handset, or press HEADSET,
or press
SPEAKER on the telephone base.
Cordless headset
Cordless headset operation
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