JPS5631261A - Bridge cut off system - Google Patents

Bridge cut off system

Info

Publication number
JPS5631261A
JPS5631261A JP10661479A JP10661479A JPS5631261A JP S5631261 A JPS5631261 A JP S5631261A JP 10661479 A JP10661479 A JP 10661479A JP 10661479 A JP10661479 A JP 10661479A JP S5631261 A JPS5631261 A JP S5631261A
Authority
JP
Japan
Prior art keywords
trunk
subscriber
bridge cut
digital conference
toll board
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.)
Granted
Application number
JP10661479A
Other languages
Japanese (ja)
Other versions
JPS5854539B2 (en
Inventor
Shigeru Nishiyama
Yasumasa Iwase
Susumu Shirasawa
Makoto Mori
Shuzo Morita
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co 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, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP10661479A priority Critical patent/JPS5854539B2/en
Publication of JPS5631261A publication Critical patent/JPS5631261A/en
Publication of JPS5854539B2 publication Critical patent/JPS5854539B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)

Abstract

PURPOSE:To perform bridge cut off without preparing a new unit, by using the digital conference trunk for bridge cut off for confirmation of the subscriber's number from the toll board. CONSTITUTION:When subscriber 200 originates to toll board 204, suspended re-call connection trunk 202 and digital conference trunk 207 are acquired simultaneously through time division service switch 201 and are connected to form the service path between subscriber 200 and operator 205. For dialing from toll board 204 for confirmation of the calling subscriber's number, offering incoming connection trunk 203 retrieves trunk 207 to connect channel highway 212 and digital conference trunk 207. As a result, operator 205 can listen to sound source 206.
JP10661479A 1979-08-23 1979-08-23 Interrupt connection method Expired JPS5854539B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10661479A JPS5854539B2 (en) 1979-08-23 1979-08-23 Interrupt connection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10661479A JPS5854539B2 (en) 1979-08-23 1979-08-23 Interrupt connection method

Publications (2)

Publication Number Publication Date
JPS5631261A true JPS5631261A (en) 1981-03-30
JPS5854539B2 JPS5854539B2 (en) 1983-12-05

Family

ID=14437991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10661479A Expired JPS5854539B2 (en) 1979-08-23 1979-08-23 Interrupt connection method

Country Status (1)

Country Link
JP (1) JPS5854539B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147268A (en) * 1982-02-26 1983-09-02 Fujitsu Ltd Conference call connection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147268A (en) * 1982-02-26 1983-09-02 Fujitsu Ltd Conference call connection system

Also Published As

Publication number Publication date
JPS5854539B2 (en) 1983-12-05

Similar Documents

Publication Publication Date Title
JPS5462711A (en) Processing system for answer of private branch exchange
JPS5754492A (en) Incoming call detour system in private branch of exchange
JPS5631261A (en) Bridge cut off system
JPS55138955A (en) Time sharing channel interruption system
JPS5521660A (en) Selection signal system
JPS53114306A (en) Inter-office call-back system
JPS5437511A (en) Conference connection system against incomimg call of junction line
JPS537105A (en) Transmission relay exchange system for aural and facsimile signals
GB1029204A (en) Improvements in or relating to telephone switching systems
JPS56122293A (en) Trunk reservation system
JPS6482753A (en) Automatic connection system for collect call service
JPS56149196A (en) Many-subscribers calling device
JPS5686565A (en) Telephone exchanger having compulsive cut-off trunk
JPS577660A (en) Connection system for link circuit
JPS5691576A (en) Transmission system for subscriber's line signal
JPS5680990A (en) Local connection system
JPS6441551A (en) Private line forces cut-off system
JPS57204670A (en) Call monitoring system
JPS5741063A (en) Hot-line control system
JPS5690667A (en) Automatic transfer system for incoming call
JPS5620370A (en) Answer system distributing-charging system
JPS56111365A (en) Call waiting system
JPS56132842A (en) Communication speed matching system
JPS5610765A (en) Automatic answer signal system of communication terminal equipment
JPS6411440A (en) Digital exchange system