Navigation Content


One Key Press Per Letter” that enables faster, easier text entry using a numeric keypad


T9® Text Input is the industry-leading text input solution for mobile devices worldwide. T9® stands for Text on 9 Keys. T9's predictive text application unlocks the power of numeric keypads, allowing users to enter text quickly and easily using "one key press per letter". This patented technology enables faster, simpler text entry across an array of mobile and consumer electronic devices. T9® is also adaptive for a highly personalised, interactive experience. 

T9® is licensed by the world's leading mobile phone manufacturers. More than 4 billion handsets around the globe are equipped with our advanced T9® technology

T9® Text Input supports over 80 languages, including complex scripts such as Indic, Chinese, Japanese and Korean.  It is the leading choice for text entry on today's sophisticated mobile devices.

View demo

Key Features

  • “One Key Press Per Letter” – Enter text twice as fast as traditional “multi-tap” entry
  • Next Word Prediction – Predicts entire phrases based upon phrases typed most often
  • Word Order Preferencing – Adjusts word order based upon user preference and prior usage
  • Enhanced Word Completion – Completes unique words, like chat phrases and URLs
  • User Added Words – Easily store and use favourite slang, codes and "emoticons”
  • Bilingual T9 Text Input – Text in two languages simultaneously
  • Community Word Lists – Create community or themed word lists like sports or music
  • Downloadable Languages – Customise phones for language needs and preferences.


Quick Tips

For quick tips on how to get the most out of your T9® Text Input experience, visit:

Chinese T9

Chinese T9

Chinese T9 supports both Phrasal Pinyin and Stroke input methods.

Phrasal Pinyin or BoPoMoFo allows users to input a phrase by continuously entering Pinyin or BoPoMoFo for the phrases without selecting each character first. For example: for the phrase "北京" users can enter the key sequence for "Beijing" or "ㄅㄟㄐーㄥ", and then select "北京" from the selection list. This feature also supports the Jianpin (拼) feature that allows users to retrieve a phrase by entering the first pinyin letter of the first few characters. For example, the user would only need to type 'b' or 'bj' or 'bjd' or 'bjdx' to retrieve 北京大学.

Stroke Input
Stroke Input allows users to input a phrase by entering the full or first few strokes for each character in the phrase separated by a delimiter. For example: to enter the phrase "北京大学" (Beijing University), if "└┘" represents a delimiter, users can enter the full or partial stroke sequence 丨 or 丨└┘丶 or 丨└┘丶└┘一 or 丨└┘丶└┘一└┘丶 to retrieve "北京大学" from the selection list.

Mohu Pinyin
Mohu Pinyin provides support for regional variances in pronunciation or spelling by interchanging Mohu pinyin pairs. For example: enter "ZongGuo" to retrieve the phrase "中国" which has "ZhongGuo" as the correct Pinyin.

User Database (UDB) Phrasal
This feature allows users to add personal or commonly selected phrases which are not available in the phone database, such as names, personal addresses etc. Users just need to add a phrase once and it will be added to their personal dictionary. Additionally, PTI will position this newly added phrase earlier in the selection list.

Modeless Input
This feature allows users to enter a message that includes both Chinese and English characters, numbers and symbols without switching modes. Say, for example, a user wants to enter the message "你好, 我是Mary 请回电123456789J", which is a combination of phrasal Pinyin, symbols (including emoticons), numbers and English characters. If the original input mode is Pinyin, the message can be completed in Pinyin mode with the following numeric key input: 64-1-97-6279-743-123456789-111.

Chinese Name Reordering
This feature reorders Chinese names so that they appear first in the selection list. This is useful when entering contacts in a contact management application.

T9 also allow users to input numbers, symbols, emoticons and English characters while in Chinese input mode without having to switch modes.

Japanese T9

Japanese T9 supports the following additional features:

Fully integrated Kana/Kanji conversion engine:

JT9 integrates an intuitive Kana/Kanji character conversion engine to enable an enhanced text entry experience for users of predictive text input and multi-tap. As the user is typing, the engine simultaneously presents Kana and Kanji word choices, allowing the user to choose their desired characters more quickly.

Japanese T9 customised word choice list:

JT9 includes an enhanced Kana edit feature, which limits potential word choices to a smaller set of likely candidates. A Kana locking feature enables users to highlight the first few characters of a word and see only those words that begin with the specific Kana characters on a drop-down word choice list. This new functionality helps the user identify their intended word more quickly by displaying a customised word choice list.

Indic Languages

Additional features for Indic languages include:

Character key mapping display:

By pressing just one key, the Indian T9® user will be shown a selection list of all the characters mapped to that particular key. This new feature can help the user learn and use Indian T9 Text Input more quickly and effectively, in part by assisting the user in memorising the keypad layout, enabling a faster SMS experience.

Stem locking:

Enables users to highlight the first few characters of a word and see only those words that begin with the specific set of characters. This new functionality helps the user identify the intended word more quickly by displaying a tailored word choice list.

Aggressive word completion:

By pressing just one key, all words of 5 or more characters will be displayed in a vertical choice list for user selection.

Contact Us

Get the Most from T9. Contact us. We’d like to hear from you - Contact Us

   United Kingdom & Ireland

Choose your country.