DK0550484T3 - Communication system, in particular ISDN-suitable local telecommunication switching - Google Patents

Communication system, in particular ISDN-suitable local telecommunication switching

Info

Publication number
DK0550484T3
DK0550484T3 DK91916060.6T DK91916060T DK0550484T3 DK 0550484 T3 DK0550484 T3 DK 0550484T3 DK 91916060 T DK91916060 T DK 91916060T DK 0550484 T3 DK0550484 T3 DK 0550484T3
Authority
DK
Denmark
Prior art keywords
connections
communication system
suitable local
telecommunication switching
local telecommunication
Prior art date
Application number
DK91916060.6T
Other languages
Danish (da)
Inventor
Alfred Jahn
Teodor Kremer
Guenther Weisigk
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
Application granted granted Critical
Publication of DK0550484T3 publication Critical patent/DK0550484T3/en

Links

Classifications

    • 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
    • H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/72—Finding out and indicating number of calling subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13003—Constructional details of switching devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1302—Relay switches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1304—Coordinate switches, crossbar, 4/2 with relays, coupling field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1309—Apparatus individually associated with a subscriber line, line circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13106—Microprocessor, CPU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322—PBX

Abstract

A communication system, in particular an ISDN-capable telecommunications private automatic branch exchange, establishes in a known manner first connections (1, 1') between at least two internal terminal sets (T1) or between an internal and an external terminal set (T2). Parallel to the first connections (1, 1'), controls (CC, AEST1, ..., PCB 11, ...) establish second connections (2, 2') between the terminal sets linked by the first connections (1, 1') and a storage device (MEM) which is connected as a terminal set to a subscriber line circuit (SLM11).
DK91916060.6T 1990-09-26 1991-09-20 Communication system, in particular ISDN-suitable local telecommunication switching DK0550484T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90118491 1990-09-26

Publications (1)

Publication Number Publication Date
DK0550484T3 true DK0550484T3 (en) 1996-08-19

Family

ID=8204516

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91916060.6T DK0550484T3 (en) 1990-09-26 1991-09-20 Communication system, in particular ISDN-suitable local telecommunication switching

Country Status (6)

Country Link
EP (1) EP0550484B1 (en)
AT (1) ATE140116T1 (en)
DE (1) DE59107977D1 (en)
DK (1) DK0550484T3 (en)
ES (1) ES2088501T3 (en)
WO (1) WO1992005671A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385933A (en) * 1965-01-21 1968-05-28 Bell Telephone Labor Inc Annoyance call tracing arrangement recording called party identification and voice sample
US3521001A (en) * 1966-08-05 1970-07-21 Stromberg Carlson Corp Malicious call holding and tracing circuit

Also Published As

Publication number Publication date
EP0550484B1 (en) 1996-07-03
DE59107977D1 (en) 1996-08-08
EP0550484A1 (en) 1993-07-14
ATE140116T1 (en) 1996-07-15
WO1992005671A1 (en) 1992-04-02
ES2088501T3 (en) 1996-08-16

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