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Getting started
Optional headset
Make sure the headset is firmly plugged into the headset jack under the rubber flap on the right side of the telephone. There is a low pitch (error) tone if you press HEADSET when the headset is not plugged in.
For
www.telephones.att.com or call 1 (800)
Plug 2.5 mm headset into the jack on the right side of the telephone base (beneath the small rubber flap).
NOTE: If the sound quality of the headset is poor, try unplugging it, and firmly plugging it in again.
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