| 1. | These lines were most often connected to private branch exchanges in large businesses.
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| 2. | Included are key telephone systems and most private branch exchanges.
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| 3. | Originally, the ACD function was internal to the Private Branch Exchange of the company.
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| 4. | The "'BT Ambassador "'is a telephone private branch exchange switchboard.
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| 5. | A call placed behind a private branch exchange ( PBX ) has more options.
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| 6. | Siemens said it has 11 percent of the global market for private branch exchanges.
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| 7. | Some businesses use a telephone network on a greater scale through a private branch exchange.
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| 8. | In 1976 Nortel developed the first digital private branch exchange ( PBX ) in the world.
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| 9. | These PBXs, or private branch exchanges, are owned and operated by private users, not the phone companies.
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| 10. | "' AskoziaPBX "'is a Asterisk private branch exchange ( PBX ) software to realize all telephony functions.
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