JPS57199390A - Incoming connection controlling system to common subscriber - Google Patents

Incoming connection controlling system to common subscriber

Info

Publication number
JPS57199390A
JPS57199390A JP8477281A JP8477281A JPS57199390A JP S57199390 A JPS57199390 A JP S57199390A JP 8477281 A JP8477281 A JP 8477281A JP 8477281 A JP8477281 A JP 8477281A JP S57199390 A JPS57199390 A JP S57199390A
Authority
JP
Japan
Prior art keywords
called party
2pty
iot
information
trunk
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
JP8477281A
Other languages
Japanese (ja)
Inventor
Tomohiko Sato
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
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8477281A priority Critical patent/JPS57199390A/en
Publication of JPS57199390A publication Critical patent/JPS57199390A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To connect control without provision of an exclusive device, by selecting the same callout signal trunk as used for incoming connection to a general extension subscriber and giving control on this trunk. CONSTITUTION:When a SUB hooks on a handset and dials a number of called party, dial information is transferred to a CC. When the CC discriminates with a MU that the called party is a 2-PTY-A, a link between IOT and 2PTY is made to reserved state and switch controlling information is transmitted to an SWC. The operating information of an RTA relay is transmitted to an RGT selected with the CC to change the state that the called party is busy. When the called party responds, the transmission of callout signal is stopped and the information that the called party responds to the CC is transferred. The CC connects the IOT and 2PTY reserved before. Further, the CC makes the RGT vacant to connect the SUB, IOT, and 2PTY. Afterwards, the control is the same as conventional intra-trunk mutual connection.
JP8477281A 1981-06-02 1981-06-02 Incoming connection controlling system to common subscriber Pending JPS57199390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8477281A JPS57199390A (en) 1981-06-02 1981-06-02 Incoming connection controlling system to common subscriber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8477281A JPS57199390A (en) 1981-06-02 1981-06-02 Incoming connection controlling system to common subscriber

Publications (1)

Publication Number Publication Date
JPS57199390A true JPS57199390A (en) 1982-12-07

Family

ID=13839963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8477281A Pending JPS57199390A (en) 1981-06-02 1981-06-02 Incoming connection controlling system to common subscriber

Country Status (1)

Country Link
JP (1) JPS57199390A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107756038A (en) * 2017-10-09 2018-03-06 珠海市领创智能物联网研究院有限公司 A kind of manufacturing line based on Internet of Things

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107756038A (en) * 2017-10-09 2018-03-06 珠海市领创智能物联网研究院有限公司 A kind of manufacturing line based on Internet of Things
CN107756038B (en) * 2017-10-09 2019-10-11 珠海市领创智能物联网研究院有限公司 A kind of manufacturing line based on Internet of Things

Similar Documents

Publication Publication Date Title
GB1466162A (en) Telecommunications systems
GB1515616A (en) Marker controlled telecommunication systems
US4467142A (en) System for transmitting emergency calls from persons requiring assistance
JPS5639670A (en) Circuit switching unit
GB1283968A (en) Switching systems
JPS57199390A (en) Incoming connection controlling system to common subscriber
JPS57159153A (en) Line-packet selection communicating system
US4660219A (en) Extension ringing arrangement key telephone system
JPH0821992B2 (en) Multi-terminal communication controller
JPS61281664A (en) Data telephone terminal testing device
JP2505441B2 (en) Digital exchange network
JPS60257644A (en) Data registering system of exchange
SU1164912A1 (en) Interface for linking simplex radio-communication channel with automatic telephone exchange
KR100464361B1 (en) Automatic Call Forwarding Method in Private Switching System
JPS5630355A (en) Call selection system of terminal equipment
JPS6058626B2 (en) Add-on connection method
JPS62123891A (en) Connection system between key telephone systems
JPS61100095A (en) Analog telephone set switching system
JPS56132891A (en) Call start connecting system
JPS6419898A (en) Key telephone system containing automatic incoming answering function
JPH0247967A (en) Incoming ringer for private branch exchange
GB1364211A (en) Arrangement for testing two wire and four wire telephone lines
JPH0771149B2 (en) Remote maintenance method
JPS56147553A (en) Automatic call back system
JPS5829037B2 (en) Distributed processing method for electronic exchanges