ES8702758A1 - Procedure to isolate a subscriber in the sense of incoming in a telecommunication central (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure to isolate a subscriber in the sense of incoming in a telecommunication central (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES8702758A1
ES8702758A1 ES540103A ES540103A ES8702758A1 ES 8702758 A1 ES8702758 A1 ES 8702758A1 ES 540103 A ES540103 A ES 540103A ES 540103 A ES540103 A ES 540103A ES 8702758 A1 ES8702758 A1 ES 8702758A1
Authority
ES
Spain
Prior art keywords
subscriber
translation
machine
legally binding
google translate
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
ES540103A
Other languages
Spanish (es)
Other versions
ES540103A0 (en
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Priority to ES540103A priority Critical patent/ES8702758A1/en
Publication of ES540103A0 publication Critical patent/ES540103A0/en
Publication of ES8702758A1 publication Critical patent/ES8702758A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)

Abstract

System to insulate a subscriber in sense incoming in a telecommunication central. Consists of using an electrically unidirectional device for the feeding and polarization current of the subscriber apparatus as well as the conversation current to the superposal that allows the passage of the call warning current towards the subscriber apparatus, which may include the device at any point of the subscriber line and especially on the regulation of the subscriber line, through a pin, all of them without any modification in the central equipment. It has applications in call communication systems (telephone or telegraph) in which the polarity of the line threads of the subscriber in the provision of making a call is different from polarity at the time of being called. (Machine-translation by Google Translate, not legally binding)
ES540103A 1985-02-01 1985-02-01 Procedure to isolate a subscriber in the sense of incoming in a telecommunication central (Machine-translation by Google Translate, not legally binding) Expired ES8702758A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES540103A ES8702758A1 (en) 1985-02-01 1985-02-01 Procedure to isolate a subscriber in the sense of incoming in a telecommunication central (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES540103A ES8702758A1 (en) 1985-02-01 1985-02-01 Procedure to isolate a subscriber in the sense of incoming in a telecommunication central (Machine-translation by Google Translate, not legally binding)

Publications (2)

Publication Number Publication Date
ES540103A0 ES540103A0 (en) 1986-11-16
ES8702758A1 true ES8702758A1 (en) 1986-11-16

Family

ID=8488641

Family Applications (1)

Application Number Title Priority Date Filing Date
ES540103A Expired ES8702758A1 (en) 1985-02-01 1985-02-01 Procedure to isolate a subscriber in the sense of incoming in a telecommunication central (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES8702758A1 (en)

Also Published As

Publication number Publication date
ES540103A0 (en) 1986-11-16

Similar Documents

Publication Publication Date Title
CA2179495A1 (en) Telecommunications system with notification hold
ATE85739T1 (en) CALL TRANSFER BETWEEN A MESSAGE SERVICE SYSTEM AND A TELEPHONE SWITCHING SYSTEM.
GB1086775A (en) An electrical signalling system using asymmetrical direct current signalling for use in telephone exchange systems
ES2177239T3 (en) PROCEDURE FOR THE TREATMENT OF TELEPHONE SIGNALS SUPPLIED BY AN ANALOG TELEPHONE TERMINAL AND DATA SUPPLIED THROUGH A DATA TERMINAL DEVICE.
GB1521127A (en) Telecommunication systems
ES8702758A1 (en) Procedure to isolate a subscriber in the sense of incoming in a telecommunication central (Machine-translation by Google Translate, not legally binding)
EP0529267A3 (en) Terminal block for telecommunications and data systems engineering
US4660219A (en) Extension ringing arrangement key telephone system
DE3582237D1 (en) METHOD FOR TRANSMITTING CHARACTERS BETWEEN A DATA PROCESSING SYSTEM AND A TELECOMMUNICATION SYSTEM, ESPECIALLY A TELEPHONE SUBSYSTEM.
GB1511464A (en) Time slot association device for high quality connections in a time switching network
JPS57145466A (en) Switchboard
JPS53117922A (en) Absence reception voice answer skip system
BG103245A (en) Device for switching between terminals of different telephone networks
GB1094277A (en) Call trace in telecommunication, particularly telephone exchange systems with centralized control facilities
ATE343296T1 (en) COMMUNICATION TERMINAL WITH TRANSMISSION OF SIGNALING INFORMATION IN AN ELECTRICAL NETWORK TO OTHER TERMINAL DEVICES IN PARALLEL CONNECTION TO THE SAME NETWORK TERMINATION DEVICE
GB1473370A (en) Intercommunication systems
FR2320014A1 (en) Appts to test condition of electrical service line - has resistance element connected across line to present predetermined impedance
JPS54137208A (en) Charging system for new service
JPS6458157A (en) Call processing system
JPS57136849A (en) Remote subscriber line testing system
JPS5647156A (en) Conference telephone release system
SE8405906L (en) DEVICE AT TELE INSTALLATION TO PREVENT OVERHEAD
JPS6457891A (en) Key telephone system
JPS5563155A (en) Communication circuit monitor device
GB980785A (en) Improvements in or relating to telephone systems