commercial cordless phone

Some models offer Bluetooth to pair with a mobile phone and import contacts; others support wired headsets (commonly via a 2.5 mm jack).

Common features include backlit, high-contrast displays with large text; illuminated or oversized keypads; talking digits/announced key presses; and stored speed-dial or phonebook entries to simplify dialing.

Product details list DECT 6.0 and the 1.9 GHz wireless band; other frequencies or standards are not specified in these listings.

Listings show AAA and AA cells, commonly NiMH or alkaline. Reported maximum charge life across models ranges roughly from 5 to 10 hours.

Several listings include a built-in digital answering system with recorded message capacities ranging about 14 to 22 minutes. Features shown include time stamps, remote access, call screening/call intercept, and message retrieval from handsets.

Many listings include handset-to-handset intercom, multi-handset conferencing (examples include 3-line conference and conferences between an outside line and multiple handsets), and call transfer on some models.