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The iPhone dialer has letters below the numbers. Why did Apple include them on this screen? In other phones it is used for T9 keyboard or contact search.

http://i.stack.imgur.com/w1gHH.png

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1 Answer 1

up vote 46 down vote accepted

Some phone numbers are tailored to use a mnemonic "lettered" version to be more easily remembered. Think of an insurance company running a commercial on TV and its goal is that you call their number.
If they use 1-800-INSUR-ME, it'll probably be more easily remembered than 1-800-4678763.

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Got it. Thanks. –  Senthil Sivanath Aug 22 '12 at 10:22
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So, what's your mnemonic for this? –  Iszi Aug 22 '12 at 19:06
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There's a name for this keyboard layout, too, which is E.161. The layout originated in American telephones for telephone exchange names during the 1930s. –  William C Aug 22 '12 at 19:32

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