DECT 6.0 Technology, Speakerphone 1 to 4 Line Capability , Expandable to 16 Stations with AT&T Models 1040, 1070 and 1080 32 Speed Dial and 16 Intercom Number Locations Caller ID/Call Waiting Features & Caller ID/Call Waiting Capability* 200 Name/Number History DSL Subscribers may need to us a DSL Filter. Please refer the User Manual, Installation Guide & Start Up Guide before use. Corded 4-line speakerphone with built-in digital answering system Digital answering machine offers 60 minutes of recording Three-party conferencing Each line can be set to its own distinct ringtone 32 speed-dial and 16 intercom number locations Certified Refurbished 30 Days Store Warranty SKU: AT&T 1070 Category: Corded & Cordless Home Phones - Modern Bluetooth Homephones