JPH0273892U

JPH0273892U -

Info

Publication number: JPH0273892U
Application number: JP15371388U
Authority: JP
Priority date: 1988-11-25
Filing date: 1988-11-25
Publication date: 1990-06-06

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例のブロツク図、
第２図は本考案の第２の実施例のブロツク図、第
３図は従来の構内電話交換網の一例のブロツク図
である。１……構内交換機、２，２ａ，２ｂ……接続制
御部、３……加入者電話機、４ａ〜４ｂ……構内
電話機、５……局線、６……構内線、７，８……
メモリ。 FIG. 1 is a block diagram of the first embodiment of the present invention.
FIG. 2 is a block diagram of a second embodiment of the present invention, and FIG. 3 is a block diagram of an example of a conventional local telephone exchange network. 1...Private branch exchange, 2, 2a, 2b...Connection control unit, 3...Subscriber telephone, 4a-4b...Private telephone, 5...Private branch line, 6...Private branch line, 7, 8...
memory.

Claims

[Scope of utility model registration request]

a private branch exchange that accommodates at least one office line and a plurality of branch lines and connects and disconnects the office line, the branch line, and the branch lines; and the office line connected to each of the branch lines. a subscriber telephone and a plurality of local telephones assigned subscriber numbers corresponding to the telephone; a memory for storing distance data between the subscriber telephone and the private telephone; When the subscriber telephone is idle, it instructs to connect the subscriber telephone to the central office line, and when the subscriber telephone is busy, it searches the distance data and is within a predetermined distance from the subscriber telephone. and a connection control unit for instructing connection of the private telephone set located at the telephone station to the central office line.