BG50400A3 - Device for switching several telephone subscribers to an urban automatic telephone exchange by a single telephone line - Google Patents

Device for switching several telephone subscribers to an urban automatic telephone exchange by a single telephone line

Info

Publication number
BG50400A3
BG50400A3 BG9487491A BG9487491A BG50400A3 BG 50400 A3 BG50400 A3 BG 50400A3 BG 9487491 A BG9487491 A BG 9487491A BG 9487491 A BG9487491 A BG 9487491A BG 50400 A3 BG50400 A3 BG 50400A3
Authority
BG
Bulgaria
Prior art keywords
bloc
telephone
exchange
telephone line
line
Prior art date
Application number
BG9487491A
Inventor
Ilija G Stoev
Original Assignee
Ilija G Stoev
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ilija G Stoev filed Critical Ilija G Stoev
Priority to BG9487491A priority Critical patent/BG50400A3/en
Publication of BG50400A3 publication Critical patent/BG50400A3/en

Links

Abstract

This device is used n automatic telephonic exchanges. It enables the connecting of new phone lines within the already available phone cells in the exchange through the collective use of the existing lines, whereas protection from incorrect billing is provided. The device consists of an exchange and subscriber's bloc connected to a telephone line. The exchange bloc is operated by a pre-recorded program in an operation bloc and ensures the inclusion of any subscriber set of the telephone exchange, connected to the bloc, with the telephone line. The subscriber bloc, which is managed by the signals sent along the line from the exchange bloc, allows the control bloc to connect any telephone linked to the bloc. The connection is always coordinated in such a way that each telephone line is connected to the assigned subscriber set for every incoming and outgoing call.
BG9487491A 1991-07-23 1991-07-23 Device for switching several telephone subscribers to an urban automatic telephone exchange by a single telephone line BG50400A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BG9487491A BG50400A3 (en) 1991-07-23 1991-07-23 Device for switching several telephone subscribers to an urban automatic telephone exchange by a single telephone line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG9487491A BG50400A3 (en) 1991-07-23 1991-07-23 Device for switching several telephone subscribers to an urban automatic telephone exchange by a single telephone line

Publications (1)

Publication Number Publication Date
BG50400A3 true BG50400A3 (en) 1992-07-15

Family

ID=3923905

Family Applications (1)

Application Number Title Priority Date Filing Date
BG9487491A BG50400A3 (en) 1991-07-23 1991-07-23 Device for switching several telephone subscribers to an urban automatic telephone exchange by a single telephone line

Country Status (1)

Country Link
BG (1) BG50400A3 (en)

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