Cellphones

Encoding

It seems that most cellphone's use UCS-2 (Universal Character Set - 2 Octets). This means they use a 2 byte code.

Input

T9 Text Input Software is used by major cellphone manufacturers like Nokia, Ericson, Sagem, Sony and Motorola. T9 is the abbrivation of "Text on 9 keys".
link : T9 Text Input

Nokia

In the Chinese models one can switch languages between Traditional Chinese, Simplifid Chinese and English, but when one wants to sent a message in one of those languages, then one has to switch the language of the phone. For simplified Chinese only pinyin is possible and for traditional Chinees only bopomofo is available as input method.
The nokia phone 3310 (and up i guess) are able to handle text messages as unicode. In the messages menu Choose for Message settings, choose common, choose in the Character support menu for Unicode.If you set your text encoding too unicode the amount of latin characters that can be inserted in one message will decrease (plain text 459 to unicode 201 over 3 messages).

Motorola

v.66 : with this phone you can choose your Chinese input method (while being in English mode). Available input methods are pinyin, bopomofo, stroke sequence, tap method, numeric and symbol
LM2000 : only Chinese while in Chinese mode

Ericsson

T68i: Input traditional Chinese using pinyin is possible while in English mode. To switch input method press the # and * for a while in a text-input scren.

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