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T300/T302
White Paper, August 2002
4
Product overview
The T300/T302 is Sony Ericsson´s rough
diamond - calm, plain and simple in appearance
but absolutely bursting with fun features for
consumers and revenue winners for network
operators. The T300/T302 marketing focus is on
messaging. It has all EMS and picture messaging
(text messaging with pictures and sounds), e-
mail and MMS (Multimedia messaging), and a
snap-on camera as a core accessory.
With a GPRS (General Packet Radio Services)
modem built in, the T300/T302 offers a fast and
satisfying mobile Internet experience. The T300/
T302 is a triple band 900/1800/1900 premium
product which is planned to be available Q4,
2002.
Key functions and features
Multimedia Messaging - Digital
greetings
Reacting to the enormous popularity of mobile
phone messaging, Sony Ericsson has
incorporated the latest messaging standard into
the T300/T302, along with a colour display for an
enhanced imaging experience.
Say it in words, say it with pictures, animate it,
add sound. Multimedia birthday and holiday
greetings are great fun to put together using the
T300/T302. On vacation, use your mobile phone
and accessories to send a digital postcard with
stylized text, digital pictures of where you are,
and authentic sound clips to friends and family
back home. If, when shopping, you find
something a friend might like, you can instantly
send a digital picture of the item and ask if they
like it.
With MMS, the subscription applications get
more interesting, for example stock information,
movie trailers and weather reports.
Polyphonic ring signals
Pleasing to the ear, polyphonic ring signals play
several tones simultaneously making a more
musical sound. The word “polyphony” means
playing with several tones at the same time.
Almost all music that we listen to consists of
polyphonic melodies. Up to now, the majority of
the GSM mobile phones doesn’t support
polyphonic sounds and ringsignals.
T300/T302 users can share ring signals, and
download them from the Web.
Early Ericsson mobile phones supported a
proprietory non-polyphonic format called
eMelody. Due to the musical limitations of
eMelody, and as it became popular to create,
send and download ring melodies, Ericsson and
Sony Ericsson, together with other
manufacturers created the more advanced non-
polyphonic sound format - iMelody.
The development from the iMelody format to the
MIDI format means a revolution to the sound
quality. The MIDI files are small, and perfect for
mobile devices, which has limited storage
capacity.
MIDI - Musical Instrument Digital Interface - is a
specification for a communications protocol
principally used to control electronic musical
instruments. MIDI is today a well known standard
used by musicians, composers, arrangers and so
forth.
A MIDI signal or file does not contain any music.
It contains binary data (information) of how a
melody is played and when this data reaches a
synthesiser, the synthesiser will translate the
binary data to music, when connected to an
amplifier with speakers so that the sound
becomes audible.
Please visit www.midi.org for more information.
Downloadable games
Gaming is already a very popular feature in Sony
Ericsson phones. Now the mobile Internet portal
offers the possibility of downloading games. Net
work operators may also offer games download
to their customers as an added value offer. Users
can add new games and skill levels to further
enhance the entertainment value of Sony
Ericsson phones.
T300/T302 games download is made possible by
a true virtual machine. The Sony Ericsson portal
for downloading of free games for the T300/T302
is accessible with only one key press in the
games menu. The openess of the downloadable
games solution is dedicated to provide an
enhanced gaming experience.