AT&T TL90073 Accessory Expansion Handset for TL92273 Cat 6 Chem Dry's Stain Extinguisher quickly and 31936 Chem Dry's Stain Extinguisher quickly and thoroughly removes most stubborn spots from carpets overload & overheat protection The AT&T TL90073 Accessory Handset is an accessory handset only Requires the AT&T TL96273 phone system to operate Caller ID announce Push to Talk HD audio with equalizer for customized audio Simulated full duplex handset speakerphone Big buttons Caller ID call waiting—50 name and number caller ID history ECO mode power conserving technology Quiet mode DECT 6 0 digital technology Intercom between handsets Conference between an outside line and up to 4 cordless handsets 200 name and number phonebook directory Voicemail waiting indicator Quick access key for voicemail box Last 10 number redial English Spanish French setup menu Mute Any key answer