KX-T7700 series, Basic Features for all models:

24 Programmable Buttons (12 with LEDs) that can be set for line selection, intercom
calls, speed dialing and features, plus 12 programmable buttons without LEDs
Redial
Hold
Flash
Message key
Intercom
Conference
Pause
Transfer
Available in charcoal or white
Ringer volume control
Wall mountable
2.5mm headset jack
Phone choices

KX-T7750. Monitor phone with no display, no microphone. Keypad is not
illuminated.

KX-T7720. Speakerphone with no display. Keypad is not illuminated.

KX-T7731. Speakerphone. Illuminated display shows one line of text. Illuminated
keypad.

KX-T7736. (replacement for KX-T7735) Speakerphone. Illuminated display shows
three lines of text. Illuminated keypad.

KX-T7737. Same as 7736, but with Talking Caller ID. It lets you determine who’s
calling without having to look at the phone, and works on both outside calls and
intercom calls. The feature is very convenient in a business environment if you
are in your office but not near your desk. At home, family members can decide
whether or not to interrupt a meal or a movie to answer the phone, without having
to walk to the phone and look at the Caller ID display. Illuminated keypad.
multi-line phone. It shows the status of phones in the call
transfer to up to 32 phones. 16 Additional buttons can desk
or wall. Charcoal or white.system, and allows one-button
intercom access and quick be used for one-touch dialing,
and feature access. For call transfer to up to 32 phones. 16
Additional buttons can desk or wall. Charcoal or white.
Corded Phones
TAWsystems.info