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  2. Sep 14, 2017 · Learn the history and origin of the * and # buttons on touch-tone phones, also known as star codes and pound sign. Find out how they were invented, how they work, and why they are called by different names in different countries.

  3. Sep 23, 2023 · Learn what the pound symbol (#) is on a phone, how to press it, and how it is used in telecommunications. Find out the history, evolution, and significance of the pound symbol in different contexts.

  4. Jun 15, 2011 · Learn how the # symbol on phone, also known as pound, number, or hash, got its name from Bell Labs engineers in the 1960s and 1970s. Discover the different names and uses of # in various contexts, such as programming, music, and chess.

  5. Nov 21, 2023 · The pound sign, represented by the symbol “#,” is a versatile character with various uses on phone keypads. From confirming responses in automated phone systems to indicating the end of voicemail recordings or phone extensions, the pound sign plays a significant role in telephone communication.

  6. en.wikipedia.org › wiki › Number_signNumber sign - Wikipedia

    In the United States, the "#" key on a phone is commonly referred to as the pound sign, pound key, or simply pound. Dialing instructions to an extension such as #77, for example, can be read as "pound seven seven". [25]

  7. Nov 7, 2017 · Learn the history and meanings of the # symbol, also known as pound sign, number sign, hashtag, and octothorpe. Find out how it is used in different contexts, such as weight, music, code, and social media.

  8. Apr 11, 2022 · Learn the definition, usage, and history of the pound symbol (#), also known as number sign, hash mark, or hashtag. Find out how to type it on your phone and when to use it in formal or informal writing.

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