Apple’s Phone App Finally Supports T9 Dialing in iOS 18
T9 dialing, or Text on 9 keys, is a predictive text technology that emerged in the 90s to make it easier to type text messages on devices with limited input options, such as traditional mobile phones with numeric keypads. Each number key (2-9) on a T9 keypad is mapped to a set of letters. For example, the key “2” corresponds to “ABC,” “3” to “DEF,” and so on.

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