JPS6336704B2 - - Google Patents

Info

Publication number
JPS6336704B2
JPS6336704B2 JP9181081A JP9181081A JPS6336704B2 JP S6336704 B2 JPS6336704 B2 JP S6336704B2 JP 9181081 A JP9181081 A JP 9181081A JP 9181081 A JP9181081 A JP 9181081A JP S6336704 B2 JPS6336704 B2 JP S6336704B2
Authority
JP
Japan
Prior art keywords
line
telephone
relay device
exchange
relay
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.)
Expired
Application number
JP9181081A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57206150A (en
Inventor
Toshuki Kobayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9181081A priority Critical patent/JPS57206150A/ja
Publication of JPS57206150A publication Critical patent/JPS57206150A/ja
Publication of JPS6336704B2 publication Critical patent/JPS6336704B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP9181081A 1981-06-15 1981-06-15 Calling system Granted JPS57206150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9181081A JPS57206150A (en) 1981-06-15 1981-06-15 Calling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9181081A JPS57206150A (en) 1981-06-15 1981-06-15 Calling system

Publications (2)

Publication Number Publication Date
JPS57206150A JPS57206150A (en) 1982-12-17
JPS6336704B2 true JPS6336704B2 (cs) 1988-07-21

Family

ID=14036977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9181081A Granted JPS57206150A (en) 1981-06-15 1981-06-15 Calling system

Country Status (1)

Country Link
JP (1) JPS57206150A (cs)

Also Published As

Publication number Publication date
JPS57206150A (en) 1982-12-17

Similar Documents

Publication Publication Date Title
US4310728A (en) Ringing device for a private automatic branch exchange
JPS6336704B2 (cs)
JPS6251018B2 (cs)
JPS62210770A (ja) 空き電話回線を利用したトーキサービス方法
JPS6023539B2 (ja) フアクシミリ呼出方式
JP2839152B2 (ja) ２線式ｔｖインターホンシステム
JPH0243870A (ja) 転送制御装置
JPS6259948B2 (cs)
JPS6342758Y2 (cs)
JPS56126364A (en) Circuit switching system
JPH0139010Y2 (cs)
JPH0224309Y2 (cs)
JPS5974769A (ja) 着信転送方式
JPH03278667A (ja) 通話回線設定方式
JPH10262282A (ja) 加入者無線制御方式
GB1473370A (en) Intercommunication systems
JP3239010B2 (ja) 電話機の切り替え方式
JPS6121665A (ja) トランク回路
JPS5944833B2 (ja) 通知音送出方式
JPH0284857A (ja) 着呼通知方式
JPS6062744A (ja) 移動無線通信システム
JPS6184134A (ja) 回線切替方式
JPS614353A (ja) 電話交換機の付帯装置
JPS585075A (ja) アラ−ム伝送方式
JPS6041389A (ja) 夜間局線着信方式