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|
2600 hertz (2600 Hz) is a frequency in her … 2600 hertz (2600 Hz) is a frequency in hertz (cycles per second) that was used by AT&T as a steady signal to mark currently unused long-distance telephone lines. During the 1960s, in-band signaling was used, so the same line for both voice conversations and telephone connection management signals. Since a pause in a voice conversation would produce silence, another method was required for switches to determine whether a line was in use. The solution AT&T created was to produce a 2600 Hz tone on idle trunks. to produce a 2600 Hz tone on idle trunks.
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http://dbpedia.org/resource/2600_hertz__Sound__1 +
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1932318
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2873
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1052402882
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| http://dbpedia.org/property/description
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A 2600 Hz tone
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2600
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http://dbpedia.org/resource/Ogg +
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2600.0
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| rdfs:comment |
2600 hertz (2600 Hz) is a frequency in her … 2600 hertz (2600 Hz) is a frequency in hertz (cycles per second) that was used by AT&T as a steady signal to mark currently unused long-distance telephone lines. During the 1960s, in-band signaling was used, so the same line for both voice conversations and telephone connection management signals. Since a pause in a voice conversation would produce silence, another method was required for switches to determine whether a line was in use. The solution AT&T created was to produce a 2600 Hz tone on idle trunks. to produce a 2600 Hz tone on idle trunks.
|
| rdfs:label |
2600 hertz
|
