Panasonic KX-TG 6821

2013 (A popular standard model featuring an integrated digital answering machine, widely manufactured and supported globally over many years)

1.8-inch (4.5 cm) monochrome graphical LCD screen on the handset (large dot-matrix display with bright white backlight, icon-driven menu, contrast adjustment, displays time, date, and message counter indicators)

Specialized telephone signal processing microcontroller (DECT 1.88–1.90 GHz frequency band, advanced Noise Reduction technology reduces background noise by up to 75%)

Built-in phonebook up to 120 names and numbers, Caller ID memory log up to 50 entries, redial memory for the last 10 entries, persistent flash memory for answering system recordings

Powered by 2 rechargeable AAA Ni-MH batteries, up to 15 hours of continuous talk time, up to 170 hours (approx. 7 days) of standby time, Power Back-Up Operation system (the base unit draws temporary power from the handset during a power outage to keep lines working)

Proprietary basic Panasonic cordless DECT telephone firmware with answering system controls

Digital DECT/GAP wireless standard, 1.9 GHz operating frequency, support for up to 120 communication channels, expandable up to 6 handsets to one base, operating wireless range up to 50 meters indoors and up to 300 meters outdoors

Integrated Digital Answering Machine with up to 30 minutes recording capacity, remote operation capability via DTMF tones, and control keys located directly on the base station, Smart Function Key (Top Button) with light indicator (flashes for new messages, missed calls, alarms, or to answer calls instantly on speakerphone), digital duplex hands-free speakerphone on the handset, Caller ID compatible (region and carrier dependent), night mode (programmable silent hours), Incoming Call Barring to block up to 50 unwanted numbers, One-Touch Eco Mode (reduces transmission power by 90%), base unit handset locator button, built-in clock and advanced alarm (once, daily, weekly with snooze setting), keypad lock, 30 polyphonic ringer melodies (32-chord polyphony), Custom Sound System (voice equalizer), wall-mountable base unit, integrated mono speaker

Base Unit: 107 × 86 × 77 mm (weight approx. 120 g); Handset: 48 × 29 × 164 mm (weight approx. 129 g with batteries)