This means you're always relying on wireless connectivity (more on that in a sec) but also that you've always got a battery ready to go, and it's admittedly pretty neat to rip out that battery (like a clip from a gun) and slide a fresh one in.
Alcatel, however, will use a small radio transmitter concealed in the battery cover of the phone to transmit a coded low-power signal to the belt clip to tell it when to vibrate, a company spokesperson said after the press conference.