0:46
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Diesel freight train, idling and glugging air blasts, with faint operator voices from cab.
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1:15
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Diesel freight train, idling and glugging air blasts, with faint operator voices from cab.
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0:46
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Diesel electric freight train idling and glugging air blasts with faint operator voices in cab.
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0:17
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Typing very quickly in morse code on a telegraph.
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0:44
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Telephone relay switches.
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0:38
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Elevador Predial Campainha Acensorista Diz Terreo Ventilador Porta Abre e Fecha Desce 3 Andar Abre Andar Rua
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0:42
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Elevador Predial Com Acensorista Ventilador Porta Fecha e Abre 2 Andar Fecha e Abre 3 Andar
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0:03
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Male operator says "your call is very important to us please hold"
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0:02
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Male operator says "thank you for calling please leave a message"
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0:03
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Middle aged female operator says "due to heavy call volume all circuits are busy"
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0:03
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Middle aged female operator says "your call will be answered in the order it was received"
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0:03
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Male operator says "all circuits are busy please try again later"
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0:03
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Middle aged female operator says "if you would like to leave a call back number press two"
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0:03
mp3 wav
Male operator says "all operators are busy at this time please hold"
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0:03
mp3 wav
Male operator says "if you would like to leave a call back number press two"
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0:02
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Middle aged female operator says "you have a collect call from"
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0:03
mp3 wav
Middle aged female operator says "your call is very important to us please hold"
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0:02
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Male operator says "would you like to accept charges"
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0:02
mp3 wav
Male operator says "please hold for a very important message"
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0:03
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Male operator says "if you would like to make a call please hang up and try again"
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