Nokia 5140 - Push-To-Talk Phone
12th November 2003
Nokia 5140 is a tri-band GSM camera phone aimed at those
who like sports, exercise and outdoor activities, and
it has several new features that have not been
seen in a Nokia handset before.
To start with, the Nokia 5140 is dust, bump and splash
resistant, has an integrated FM radio, 640x480 pixel camera,
and a built-in torch. These features are in several
other Nokia handsets, but the 5140 also comes with
a built-in digital compass, outdoor thermometer, Fitness
Coach application, noise meter, a stopwatch and
interval timer plus an optional Active Headset.
But the really novel feature of the Nokia 5140
is that it is the first GSM phone announced so
far to feature Push-To-Talk (PTT), which is a low-cost
way of carrying out one-to-one or conference calls.
PTT sends voice data over the phone's built-in
IP network via GPRS or EDGE data connectivity. Push-to-talk
is controlled by a single button, either on the
handset or Active Headset, and this turns the Nokia
5140 into something equivalent to a walkie talkie. Nokia
say that PTT will be standard in all their handsets
The 5140's digital camera is a 640x480 VGA resolution
device, and it can record video clips as well as
still photos. There's also an image editor,
gallery and of course the 5140 supports MMS multimedia
Unlike some other recent Nokias, the 5140 looks interesting
but unremarkable, measuring 107 x 47 x 24 mm and
weighing 101 grams. The display is 128x128 pixels in
4096 colours. which is not great compared to some recent
phones. Battery life is 2-5 hours depending on
network with a standby time of 6-12 days, although this
is network dependent.
Web browsing on the 5140 is done with the built-in
XHTML browser over GPRS, EDGE or HSCSD data networks.
There's a built-in Java-based email client. This is
pretty standard stuff and not very exciting, but of
course the 5140's strengths lie elsewhere.
To cap it all, the Nokia 5140 has Java application
support, voice dial, polyphonic ringtones, custom wallpapers
and optional Xpress-on covers to change the colour of
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