Automatic calling line identification arrangement

Details Automatic calling line identification arrangement Automatic calling line identification arrangement

H - Electricity

04

Q

344/6.1

H04Q 3/74 (2006.01) H04Q 3/00 (2006.01) H04Q 5/24 (2006.01)

Patent

CA 1039392

AUTOMATIC CALLING LINE IDENTIFICATION ARRANGEMENT Abstract of the Disclosure An arrangement for identifying a calling party is disclosed. A service request from a calling line causes identification circuitry to be arranged to identify the directory number of the subscriber on an individual party line or to initially identify the directory number of the ring party on any two-party line. An identifying signal applied to the calling line's sleeve lead results in the directory number identification and the class of service of the calling line being stored in an outpulser circuit. The outpulser then conducts a two-party test on the calling line to determine whether the tip or the ring party initiated the call if the class of service indicates that the calling line is a two-party line. A ring party determination results in the stored identification being used; a tip party determination results in the stored identification being erased and a tip party identification being conducted. - i -

216414

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