.AT&T ML17939 2-Line Corded Speakerphone with Digital Answering System & Caller ID

Reliable Two-Line Communication for Small Businesses and Home Offices
The AT&T ML17939 is a durable, feature-rich corded telephone designed for professionals who need dependable multi-line support. Manage two separate analog phone lines, enjoy hands-free calling with Clearspeak™ technology, and never miss important messages thanks to the integrated digital answering system.

Key Features
2-Line Operation – Handle two independent lines with auto line selection, line-status indicators, and 3-party conferencing for seamless business or personal separation. Digital Answering System – Records up to 12 minutes of messages, memos, and announcements per line with time/date stamp, remote access, toll saver, call screening, intercept, and voice prompts. Caller ID/Call Waiting¹ – Displays incoming caller name, number, time, and date; stores 99-name/number Caller ID history for easy callbacks (subscription required from your phone provider). Clearspeak™ Dial-in-Base Speakerphone – Crystal-clear hands-free conversations with volume control, perfect for group calls or multitasking. 100-Name/Number Phonebook Directory – Easily store and access contacts; plus 18-number speed dial for frequent or emergency calls. Headset Compatible – 2.5mm jack for hands-free productivity (headset sold separately); hearing aid compatible (T-coil) for accessibility. Additional Conveniences – Backlit LCD display, selectable ringer tones/melodies per line, ringer volume control, mute, hold, flash, chain dialing, temporary tone dialing, data port, wall-mountable design, and line power mode (works during power outages with optional backup battery).

Why Choose the ML17939?

Ideal for small offices, home-based businesses, or anyone needing reliable analog phone service without relying on batteries or internet connectivity. No complicated setup—just plug into standard RJ11 jacks (use DSL filters if needed for high-speed internet). Specification Details Lines 2 Analog Lines Answering System Digital, up to 12 minutes Phonebook 100 Entries Speed Dial 18 Locations Speakerphone Clearspeak™ Dial-in-Base Compatibility Hearing Aid (T-Coil), Headset (2.5mm) Color Black/Silver
What's in the Box: Telephone base, handset with coiled cord, power adapter, two line cords, wall-mount bracket, and user manual.
¹Caller ID features require subscription from your local telephone service provider. Not compatible with VoIP or digital lines without adapters.
Upgrade your office communication with the trusted reliability of AT&T!
.2-line operation- Dial and receive calls on two different phone lines.
.Digital Answering System- Digitally records up to 12 Minutes of incoming messages, outgoing announcements and memos.2
.Caller ID/call waiting- Allows you to view the name, number, time and date of incoming calls at a glance, even those on call waiting.
.Headset compatible (2.5mm jack)
.DSL Subscribers may need to us a DSL Filter

AT&T ML17939 2-Line Corded Speakerphone with Caller ID, Digital Answering System, Speakerphone, Black – Small Business Office Phone