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EP1163806A1 - Procede permettant de transmettre des informations entre un central et un terminal de communication - Google Patents

Procede permettant de transmettre des informations entre un central et un terminal de communication

Info

Publication number
EP1163806A1
EP1163806A1 EP00929251A EP00929251A EP1163806A1 EP 1163806 A1 EP1163806 A1 EP 1163806A1 EP 00929251 A EP00929251 A EP 00929251A EP 00929251 A EP00929251 A EP 00929251A EP 1163806 A1 EP1163806 A1 EP 1163806A1
Authority
EP
European Patent Office
Prior art keywords
data
subscriber
connection
channel
group
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.)
Withdrawn
Application number
EP00929251A
Other languages
German (de)
English (en)
Inventor
Wahid Adli
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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
Priority claimed from DE10010495A external-priority patent/DE10010495C2/de
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1163806A1 publication Critical patent/EP1163806A1/fr
Withdrawn legal-status Critical Current

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
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/5125—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing with remote located operators
    • 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
    • H04Q11/0435—Details
    • H04Q11/0457—Connection protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • 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
    • H04Q2213/13072—Sequence circuits for call signaling, ACD systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13095—PIN / Access code, authentication
    • 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
    • H04Q2213/13109—Initializing, personal profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13174—Data transmission, file transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7
    • 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
    • H04Q2213/1337—Operator, emergency services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13389—LAN, internet

Definitions

  • the invention relates to a method for transmitting information between a switching center arranged in a communication network and at least one communication terminal or subscriber assigned to the communication network.
  • the invention further relates to a method for transmitting data to subscribers of a telecommunications network who are members of an operator service, the data being specific to the operator service, and at least one data channel and at least one call channel being available for each connection.
  • the invention also relates to a telecommunications network with several switching centers, in which subscribers are connected to at least one switching center, which are members of an operator service, and each switching center has at least one coordination processor and peripheral line groups with a group processor for the subscribers.
  • So-called operator services are required in telephone networks, which represent an essential link between the customers of the network and the network operators.
  • the tasks of such an operator service are diverse, with one main task being to provide information to the participants on request.
  • a subscriber can call an operator service in an ISDN network and request information.
  • the operator responsible can now, if necessary, for example, access a database, where it then information relating to another subscriber on the screen of his image ⁇ PC is present.
  • a connection request by the operator which can be done, for example, by pressing a key, the operator is connected to the subscriber sought.
  • the operator is now connected to both the originating subscriber and the subscriber searched for and can optionally speak to one of the subscribers.
  • the button is pressed again, the D-channel signals, and the connection positions of both participants become peripheral
  • Announce connection group and the connection of the voice channels takes place over the switching network, so that ultimately there is a direct connection between the two participants.
  • the example just described is only intended to represent one of the options or tasks of an operator service.
  • call centers The operators are usually stationed in so-called call centers, and their respective device, which usually consists of a terminal, PC, monitor, etc. and is referred to below as "console", is connected directly to the system or can be connected to the local exchange.
  • a single central management system for the operators on the network should be possible.
  • the PC of each operator has installed software suitable for the operator service, but when the operator logs on, i.e. the respective commissioning of the console still requires data from the operator.
  • the operator logs on by entering his password and ID numbers, and then the operator loads specific data onto the console ("downloading"), for example system time and date, the hierarchy structure, personal data and different authorizations , such as access to statistical data, etc.
  • downloading for example system time and date, the hierarchy structure, personal data and different authorizations , such as access to statistical data, etc.
  • the operator is a supervisor, ie A member who is high in the hierarchy should also have access to tables that provide information about the working status of the other operators, etc.
  • One object of the invention is to specify a method which enables the loading of the specified information, which wants to be stored centrally, to subscribers or operator consoles located anywhere in a network, without the need for complex changes to existing systems.
  • communication relationships within the communication network are based on at least one signaling channel for transmitting signaling information and / or at least one useful data channel for transmitting useful information.
  • the essential aspect of the method according to the invention is that a connection comprising at least one user data channel between the at least one communication terminal or subscriber and one of the switching is assigned to the assigned virtual communication terminal or virtual subscriber, the connection being set up in accordance with a standardized connection setup and useful information being transmitted via the set up connection between the at least one communication terminal and the switching center.
  • the main advantage of the method according to the invention is that a large amount of, for example centrally managed, information is available in one
  • Arranged communication network participants can be transmitted, whereby the existing infrastructure of the communication network can be used without the need for expensive changes to existing systems.
  • the object is also achieved by a method for transmitting data to subscribers of a telecommunications network who are members of an operator service, the data being specific to the operator service, and for each connection at least one signaling data channel or data channel and at least one user data channel or conversation channel Is available, the method according to the invention being used for the transmission of the data to the participants.
  • the coordination processor of the master office sends a request to a virtual operator set up in a peripheral line group, an election process to the participant, whereupon a connection to the participant is established via a conversation channel and a corresponding message is sent to the coordination processor, the data to be transmitted are then loaded in the master office from the coordination processor into a group processor, starting from this group processor.
  • processor established a data transmission connection in the master exchange to a peripheral connection group for fast data connections and then.
  • the data to be transmitted are transmitted via a data connection to a peripheral connection group for rapid data connections of the exchange of the subscriber and from here within the exchange to the peripheral connection group (LTG) of the subscriber, and finally from this peripheral connection group (LTG) Data are sent to the participant (OP1).
  • a peripheral connection group for rapid data connections of the exchange of the subscriber and from here within the exchange to the peripheral connection group (LTG) of the subscriber, and finally from this peripheral connection group (LTG) Data are sent to the participant (OP1).
  • communication terminals or subscribers which are also connected to different exchanges of a communication network, can receive specific, centrally managed data, this loading of data not necessarily being limited to the initialization phase when logging on.
  • the data to be transmitted are sent from the peripheral line trunk group to the subscriber via a data channel, this being the usual possibility for data transmission that is also present in the network.
  • the invention is particularly suitable for use in an ISDN network, the data channel being the D channel and the data channel.
  • voice channels are B channels.
  • the interoffice signaling will then advantageously be an ISUP signaling.
  • the object of the invention is also achieved with a telecommunications network of the type specified at the outset, in which, according to the invention, a virtual operator is set up in a peripheral line group of an exchange serving as a master exchange and is provided for transmitting data from the coordination processor of the master exchange to a subscriber to the operator service , the coordination processor of the master office is set up to send a request to the virtual operator to initiate a dialing process for the subscriber, so that the data to be transmitted after establishing a data transmission connection within the master office via a peripheral connection group for rapid data connections of the master office to the same Connection group of the exchange of the subscriber can be sent and transmitted from this exchange to the subscriber.
  • all subscribers OP1, OP2 ... are TEI of a telecommunications network NET, in the present case an ISDN network, and therefore via an S 0 - Interface integrated into the network, ie here each connected to a network connection NTE.
  • a first exchange VS1 of the network is shown at the top right, and in a known manner it has a switching network SNE and peripheral line groups LTG, LTC connected to it.
  • a coordination processor COP is provided to control the switching center VS1, especially the switching network SNE.
  • each peripheral line group LTG, LTC contains a group processor GRP, and in this exemplary embodiment concentrators DLU (digital line unit) are connected to each peripheral line group via a U k o interface.
  • DLU digital line unit
  • peripheral line trunk groups LTG Line Trunk Group
  • LTC can be connected to a switching network SNE, and two concentrators DLU are usually connected to each line trunk group LTG.
  • the peripheral connection groups LTG, LTC also contain a so-called group switch GSI.
  • the switching center also includes an Operation and Maintenance System OMS with an Operation and Maintenance Terminal OMT, on which monitoring personnel can constantly monitor the state of the switching center and identify errors.
  • the participants OP1, OP2 ... of the operator service OPS usually have workstations with personal computers that contain ISDN cards and special software as well as headsets for the operators.
  • On the part of these subscribers OP1, OP2, ... messages can be sent to the switching center, in particular to the peripheral line trunk groups LTG, these messages being processed in the group processor GRP and leading to corresponding further measures, for example establishing a connection.
  • the messages are sent in a point-to-point configuration with permanently active layer 2 and in an ISDN network in the D channel.
  • a further switching center VS2 belonging to the network NET is shown, the structure of which corresponds in principle to the first switching center VS1, but the second switching center VS2 serves as the master office of the operator service.
  • the second switching center VS2 serves as the master office of the operator service.
  • Each exchange VS1, VS2 has a special peripheral line trunk group LTC for fast data connections that are used in the context of inter-office signaling, e.g. ISUP signaling (see e.g. P. Bocker, ISDN - digital networks for voice, text, data, video and multimedia communication,
  • ISUP signaling see e.g. P. Bocker, ISDN - digital networks for voice, text, data, video and multimedia communication
  • the data which are to be loaded into the consoles of the subscribers OP1, OP2, ... may be in the remote office, ie the exchange VS2, namely in their coordination processor COP.
  • the invention provides a method described in more detail below.
  • the subscriber OP1 registers (logs in) with a password and an ID number at the remote exchange VS2, the master exchange, but this is not the subject of the present invention.
  • the coordination processor COP of the master exchange VS2 sends a request to a virtual operator VOP to initiate a dialing process for the subscriber OP1.
  • a virtual operator which is set up in a peripheral line trunk group LTG, is required by the coordination processor COP in order to be able to set up a call connection.
  • a connection is established via a conversation channel, here a B channel, to the subscriber OP1, and after the connection has been successfully established, the coordination processor COP is informed of the call status or is also notified when the connection is terminated.
  • a conversation channel here a B channel
  • the corresponding program part initiates a data link connection from a PC or the like to the coordination processor when a connection is successfully established, a corresponding identification of this new type of connection being used, which could also be referred to as a "remote down loading" connection .
  • the data are now loaded, for example in blocks of four kbytes, by the coordination processor into a group processor GRP using the existing data link interface.
  • a data transmission connection RIN Report Interface
  • connection group LTC is used for fast data connections to other offices, the data to be transmitted now being connected to a corresponding peripheral via a fast data connection, for example an optical fiber cable LTC terminal group are transmitted to the switching center of the subscriber VSI OP1, from here inside the switching point ⁇ VSI to the peripheral line trunk group LTG of the subscriber, and finally from this peripheral line trunk group LTG from the data to be transmitted to the
  • Participant OP1 sent and loaded there.
  • the transmission from the peripheral connection group LTG of the subscriber OP1 to the latter takes place via a D channel in which a data link to the console is set up.
  • the DataLink connection is cleared down and finally the existing call between the subscriber OP1 and the virtual operator is cleared down from the console.
  • the loading of data does not necessarily have its starting point in a request from the operator, i.e. of the subscriber must have OP1, but a connection from the master office to the subscriber OP1 can also take place at the request of the operator service with the aid of the virtual operator VOP.
  • the master exchange VS2 knows the call numbers of the corresponding operators or subscribers OP1, OP2, ....
  • Call setup is necessary for addressing, and the data can then, as already mentioned, be sent either over the D channel with 16 kbit / s for ISDN or over a B channel with even higher speed, namely 64 kbit / s for ISDN become.
  • the invention therefore enables an essential extension of an operator service, since it can now be integrated into a large network with a large number of switching centers (only two are shown in the drawing for simplicity), and nevertheless central and clear administration is possible.
  • the data loaded into the console also allows the hierarchy mentioned at the beginning to be taken into account in the operator service, so that higher Provided operators can receive preferred data that should not be available to all operators.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

Procédé et réseau de télécommunication (NET) permettant de transmettre des données aux abonnés (OP1) d'un service de téléphonistes (OPS). Après la connexion d'un abonné (OP1) avec un central maître à distance (VS2), le processeur de coordination (COP) dudit central envoie à un téléphoniste virtuel (VOP) une invitation à émettre lui demandant de lancer une opération de numérotation pour ledit abonné (OP1); une communication est établie avec l'abonné par l'intermédiaire d'une voie de communication; le processeur de coordination (CP2), au niveau du central, charge les données à transmettre dans un processeur de groupe (GRP); une connexion de transmission de données (RIN), au niveau du central (VS2), est établie avec un groupe de connexion périphérique (LTC) en vue d'une connexion de données rapide; et les données à transmettre sont transmises par une connexion de données au central (VS1) de l'abonné, puis à l'abonné (OP1).
EP00929251A 1999-03-31 2000-03-27 Procede permettant de transmettre des informations entre un central et un terminal de communication Withdrawn EP1163806A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19914795 1999-03-31
DE19914795 1999-03-31
DE10010495 2000-03-03
DE10010495A DE10010495C2 (de) 1999-03-31 2000-03-03 Verfahren zum Übermitteln von Informationen zwischen einer Vermittlungsstelle und zumindest einem daran angeschlossenen Kommunikationsendgerät, Verwendung des Verfahrens und Telekommunikationsnetz
PCT/DE2000/000931 WO2000060879A1 (fr) 1999-03-31 2000-03-27 Procede permettant de transmettre des informations entre un central et un terminal de communication

Publications (1)

Publication Number Publication Date
EP1163806A1 true EP1163806A1 (fr) 2001-12-19

Family

ID=26004677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00929251A Withdrawn EP1163806A1 (fr) 1999-03-31 2000-03-27 Procede permettant de transmettre des informations entre un central et un terminal de communication

Country Status (4)

Country Link
US (1) US6876740B1 (fr)
EP (1) EP1163806A1 (fr)
CN (1) CN1353910A (fr)
WO (1) WO2000060879A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10009768A1 (de) * 2000-03-01 2001-09-20 Siemens Ag Datenübertragung über den ISDN-B-Kanal

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406925A (en) 1981-08-24 1983-09-27 The Audichron Company Message delivery system
US5012512A (en) * 1990-03-30 1991-04-30 At&T Bell Laboratories Telephone operator and agent to database communication arrangement
US5469504A (en) * 1992-10-14 1995-11-21 Blaha; David L. Automatic call distribution with intersubnetwork customer information transfer system and method
US5392345A (en) * 1993-04-30 1995-02-21 At&T Corp. Work at home ACD agent network
US5459780A (en) * 1994-01-31 1995-10-17 At&T Ipm Corp. Work at home agent ACD call distribution
FI99072C (fi) 1995-06-08 1997-09-25 Nokia Telecommunications Oy Menetelmä toimitusvahvistusten antamiseksi puhelinverkossa suoritetuista sanomatoimituksista
US5712907A (en) 1995-09-18 1998-01-27 Open Port Technology, Inc. Pro-active message delivery system and method
US6175564B1 (en) * 1995-10-25 2001-01-16 Genesys Telecommunications Laboratories, Inc Apparatus and methods for managing multiple internet protocol capable call centers
WO1997050226A1 (fr) 1996-06-24 1997-12-31 Mci Communications Corporation Systeme et procede de remise differee de messages telephoniques
US6130935A (en) * 1996-08-08 2000-10-10 Mci Communications Corporation Virtual networking work at home system and method
GB2327172B (en) 1997-06-20 2002-06-19 Hong Kong Telecomm Ltd Voice mail service
US6049602A (en) * 1997-09-18 2000-04-11 At&T Corp Virtual call center
US6366667B1 (en) * 1998-04-15 2002-04-02 Hanover Communications System for generating a list of qualified call recipients

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0060879A1 *

Also Published As

Publication number Publication date
WO2000060879A1 (fr) 2000-10-12
CN1353910A (zh) 2002-06-12
US6876740B1 (en) 2005-04-05

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