JPS6489697A - Key telephone system - Google Patents

Key telephone system

Info

Publication number
JPS6489697A
JPS6489697A JP24354687A JP24354687A JPS6489697A JP S6489697 A JPS6489697 A JP S6489697A JP 24354687 A JP24354687 A JP 24354687A JP 24354687 A JP24354687 A JP 24354687A JP S6489697 A JPS6489697 A JP S6489697A
Authority
JP
Japan
Prior art keywords
origination
dial
line
key
telephone set
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP24354687A
Other languages
Japanese (ja)
Inventor
Ryoichi Yabata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP24354687A priority Critical patent/JPS6489697A/en
Publication of JPS6489697A publication Critical patent/JPS6489697A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To prevent a mistake in dialing by selecting a line corresponding to a dial number inputted from a key telephone set, and reading out an origination code corresponding to this line from a memory, and sending it to the line. CONSTITUTION:When a key operation for dial origination is performed in the key telephone set 3, a central processing unit 7 receives that signal, and recognizes the key operation to be the dial origination, and reads out the origination code corresponding to the objective telephone line of the dial origination from the memory 8. It adds the read out origination code to the head of the dial-inputted number of other party, and sends it to a trunk circuit 2 through a data input output interface 6. On the other hand, the central processing unit 7 controls a sound switch circuit 5, and makes it connect between the key telephone set 3 having key-operated and the telephone line 1. The trunk circuit 2 converts information given a line origination code additionally into a dial signal, and sends it to the telephone line 1.
JP24354687A 1987-09-30 1987-09-30 Key telephone system Pending JPS6489697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24354687A JPS6489697A (en) 1987-09-30 1987-09-30 Key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24354687A JPS6489697A (en) 1987-09-30 1987-09-30 Key telephone system

Publications (1)

Publication Number Publication Date
JPS6489697A true JPS6489697A (en) 1989-04-04

Family

ID=17105482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24354687A Pending JPS6489697A (en) 1987-09-30 1987-09-30 Key telephone system

Country Status (1)

Country Link
JP (1) JPS6489697A (en)

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