Key functions and features

White Paper T290i/T290c

Multimedia Messaging - Digital greetings

Reacting to the enormous popularity of mobile phone messaging, Sony Ericsson has incorporated the latest messaging standards into the T290i/ T290c phone, 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 your phone. 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.

With MMS, the subscription applications get more interesting, for example stock information, movie trailers and weather reports.

music that we listen to consists of polyphonic mel- odies. Polyphonic sounds and ring signals are widely used in GSM mobile phones.

The T290i/T290c will contain several polyphonic ring signals. Users can share ring signals, and download them from the Web.

Early Ericsson mobile phones supported a proprie- tary 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 qual- ity. The MIDI files are small, and perfect for mobile devices which have limited storage capacity.

Speakerphone

Speakerphone is a feature that allows the user to utilize the phone in “Public Mode” where the phone routes audio to the loudspeaker. With speaker- phone, the user can place the phone at a greater distance away than normally is possible and still communicate effectively. Multiple individuals in close proximity can also participate in a phone call. The speakerphone functionality works with all accessories except those that inherently modify audio behaviour such asa PHF, a car kit, or a desk speakerphone.

Chinese phonebook sorting

You can look up and call a contact in your phone- book by entering the first letter of the name you want to call. Chinese phonebook sorting makes it possible to look up and call contacts not only by entering Latin letters but also by using Chinese characters.

Polyphonic ring signals

Pleasing to the ear, polyphonic ring signals play several tones simultaneously making a more musi- cal sound. The word “polyphony” means playing with several tones at the same time. Almost all

MIDI - Musical Instrument Digital Interface - is a specification for a communications protocol princi- pally used to control electronic musical instru- ments. 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, but instead it contains binary data (information) of how a melody is played. When these data reach a synthesizer, the synthesizer 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. In addition to pre-installed games, now the mobile Internet portal offers the possibility of downloading games. Network opera- tors may also offer downloadable games 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.

Downloading of games on T290i/T290c is made possible by a true virtual machine. The Sony Erics- son portal for downloading of free games is acces-

7	October 2004