ES8302981A1 - Supplementary exchange for telephonic installation - uses CPU with memory to evaluate comparator output for automatic control and selection of day or night stations - Google Patents

Supplementary exchange for telephonic installation - uses CPU with memory to evaluate comparator output for automatic control and selection of day or night stations

Info

Publication number
ES8302981A1
ES8302981A1 ES508089A ES508089A ES8302981A1 ES 8302981 A1 ES8302981 A1 ES 8302981A1 ES 508089 A ES508089 A ES 508089A ES 508089 A ES508089 A ES 508089A ES 8302981 A1 ES8302981 A1 ES 8302981A1
Authority
ES
Spain
Prior art keywords
memory
night
stations
day
sets
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
ES508089A
Other languages
Spanish (es)
Other versions
ES508089A0 (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of ES508089A0 publication Critical patent/ES508089A0/en
Publication of ES8302981A1 publication Critical patent/ES8302981A1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

Data transmission lines for different groups of subscribers are connected through connecting sets to a central control unit. These lines permit exchange of data between the different equipments and the partial controllers for the subscriber circuits, the office sets and the selector memory sets. Other controllers provide control for the exchange telephonic equipment with the connection sets and for the tone generators. A comparator and program controller with memory enables the type of function to be selected from the evaluation of selected signals and special supplementary signals. This permits automatic connection of day or night stations and the selection of another station if these connections cannot be established.
ES508089A 1980-12-18 1981-12-17 Supplementary exchange for telephonic installation - uses CPU with memory to evaluate comparator output for automatic control and selection of day or night stations Expired ES8302981A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803047831 DE3047831A1 (en) 1980-12-18 1980-12-18 CIRCUIT ARRANGEMENT FOR A TELEPHONE SYSTEM, IN PARTICULAR TELEPHONE EXTENSION SYSTEM, WITH TARGETABLE CONTROLLED INTERFACE

Publications (2)

Publication Number Publication Date
ES508089A0 ES508089A0 (en) 1982-12-01
ES8302981A1 true ES8302981A1 (en) 1982-12-01

Family

ID=6119566

Family Applications (1)

Application Number Title Priority Date Filing Date
ES508089A Expired ES8302981A1 (en) 1980-12-18 1981-12-17 Supplementary exchange for telephonic installation - uses CPU with memory to evaluate comparator output for automatic control and selection of day or night stations

Country Status (4)

Country Link
BE (1) BE891506A (en)
DE (1) DE3047831A1 (en)
ES (1) ES8302981A1 (en)
FR (1) FR2497042A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602128A (en) * 1984-11-29 1986-07-22 At&T Information Systems Inc. Automatic redialing arrangement for multi-line telephone station sets

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2057206B2 (en) * 1970-11-20 1972-02-03 Siemens Ag CIRCUIT ARRANGEMENT FOR A TELEPHONE SYSTEM, IN PARTICULAR TELEPHONE EXTENSION SYSTEM WITH CALL DISTRIBUTION AND RECALL CALLS AT THE SITE
FR2274179A1 (en) * 1974-06-04 1976-01-02 Cit Alcatel CONNECTION NETWORK OF OPERATORS IN A TELECOMMUNICATIONS CENTRAL
DE2534110C2 (en) * 1975-07-30 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Procedure for the call distribution of calls waiting for switchboards in a switching system that have become free

Also Published As

Publication number Publication date
FR2497042A1 (en) 1982-06-25
BE891506A (en) 1982-04-16
ES508089A0 (en) 1982-12-01
DE3047831A1 (en) 1982-07-15

Similar Documents

Publication Publication Date Title
EP0003849A3 (en) Digital bus communications system
GB1495476A (en) Communications exchange systems
GB1516751A (en) Speech and data networks including circuits arranged to automatically control transmission continuity testing of connections
ES489314A1 (en) Automatic switching system with digital connection network.
JPS63234799A (en) Subscriber line interface circuit equipment of digital time-sharing multiplex communication exchange
ES8302981A1 (en) Supplementary exchange for telephonic installation - uses CPU with memory to evaluate comparator output for automatic control and selection of day or night stations
ATE6894T1 (en) CIRCUIT ARRANGEMENT FOR UP OR. DISCONNECTING A DATA CONNECTION.
GB1122924A (en) Circuit arrangement for a centrally controlled exchange, serving in common a telephone and a teleprinting network
ES8704060A1 (en) Key telephone system with distributed control.
ATE4364T1 (en) PROCEDURE FOR OPERATING DIGITAL PRINCIPLES AND/OR PBXS AT A PCM CENTRAL CENTER.
DE3462651D1 (en) Switching system
GB2097224A (en) Digital concentrator and/or multiplexor
IE45958L (en) Telecommunications apparatus
JPS5772458A (en) Conference call device
SE341015B (en)
JPS5648749A (en) Announcement control system of telephone exchange system
JPS57103489A (en) Call processing system for distributed digital exchange
ES8202223A1 (en) Improvements in or relating to circuit arrangements for checking subscriber connection networks of time division telephone exchanges
JPS57132456A (en) Speed selecting communication system
JPS5498506A (en) Test system for subscriber lines
JPS56119564A (en) Key telephone system
JPS57164650A (en) Connecting circuit for dispatcher telephone
DE3570820D1 (en) Circuit arrangement for telecommunication installations, in particular telephone exchanges with centralized and/or decentralized information-processing control circuits
SE8306966D0 (en) DIGITAL PHONE SYSTEM
JPS6474891A (en) Telephone exchange