JPS6347652U

JPS6347652U -

Info

Publication number: JPS6347652U
Application number: JP14077686U
Authority: JP
Priority date: 1986-09-12
Filing date: 1986-09-12
Publication date: 1988-03-31

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による電話交換装
置のブロツク構成図、第２図は従来の電話交換装
置を示すブロツク構成図である。図において、１ａ，１ｂは加入者回路、２はス
イツチネツトワーク、３は中継トランク、４は自
局内トランク、５はオフフツクシグナルトランク
、６はトーントランク、７はレジスタ、８は呼制
御装置、９はメモリ、１０は照合装置、１１はオ
ンフツク自動アンサー装置である。なお、図中、
同一符号は同一、又は相当部分を示す。 FIG. 1 is a block diagram of a telephone exchange according to an embodiment of this invention, and FIG. 2 is a block diagram of a conventional telephone exchange. In the figure, 1a and 1b are subscriber circuits, 2 is a switch network, 3 is a relay trunk, 4 is an internal trunk, 5 is an off-hook signal trunk, 6 is a tone trunk, 7 is a register, 8 is a call control device, 9 is a memory, 10 is a verification device, and 11 is an on-hook automatic answer device. In addition, in the figure,
The same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

In a telephone switching device that uses the on-hook dial method, it is possible to make a dial call while the caller is on-hook, and to hear the tone of the called party's off-hook response and then switch off-hook to begin the call. A verification device that compares the subscriber's telephone number with the telephone number of the caller; and after receiving the match output from this verification device and after the called party goes off-hook, sends a signal to the calling party that the called party has taken off-hook. 1. A telephone exchange system comprising: an off-hook signal trunk; and an on-hook automatic answering device provided on a caller side and selecting a call response message (voice signal) based on the off-hook signal from the off-hook signal trunk.