Though they look and act like regular mobile phones, Kyocera's KX440s have several features that set them apart from the crowd. The most obvious is a rugged chassis that can take a little rough-and-tumble (Kyocera claims that this is their most reliable handset). The KX440s also have push-to-talk (PTT) functionality that lets them function like walkie-talkies without the range limitations.
Group calling means you can address several people at the same time, and hands-free "barge" calls mean that you can receive incoming communications without having to answer the phone - which could be handy if the call receiver's hands are full.
Talk time tops out around three hours, and you get all the features you'd expect from a regular mid-range mobile phone: polyphone ring tones, games, colour display, predictive text, WAP-compatibility and PDA functions, plus CDMA 1X data transfer.
Consumers would probably look for something a little sexier, but businesses who want reliability and group-calling PTT features should give this one a look.