FR2626125A1 - Card-based apartment telephone communication system - Google Patents

Card-based apartment telephone communication system Download PDF

Info

Publication number
FR2626125A1
FR2626125A1 FR8800815A FR8800815A FR2626125A1 FR 2626125 A1 FR2626125 A1 FR 2626125A1 FR 8800815 A FR8800815 A FR 8800815A FR 8800815 A FR8800815 A FR 8800815A FR 2626125 A1 FR2626125 A1 FR 2626125A1
Authority
FR
France
Prior art keywords
handset
central unit
individual
telephone
handsets
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Withdrawn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
FR8800815A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8800815A priority Critical patent/FR2626125A1/en
Publication of FR2626125A1 publication Critical patent/FR2626125A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F7/00Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0866Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by active credit-cards adapted therefor
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/30Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/343Cards including a counter
    • G06Q20/3433Cards including a counter the counter having monetary units
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F17/00Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/0014Coin-freed apparatus for hiring articles; Coin-freed facilities or services for vending, access and use of specific services not covered anywhere else in G07F17/00
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F7/00Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/02Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by keys or other credit registering devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/34Charging, billing or metering arrangements for private branch exchanges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M17/00Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Accounting & Taxation (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

Telephone communication system comprising a central unit 1 connected by at least one subscriber line 2 to a telephone exchange 3 and to the same number of individual handsets 5, the central unit and the handsets being connected by electrical wires 4 allowing the exchanging of metering information and phone data. The central unit 1 is fitted with means for transmitting to a specified handset 5 metering signals which it receives from the telephone exchange 3 in step with the communication. Each individual handset is fitted with means of reception for a programmable read-only memory support 6 of the "memory card" type, and the said individual handset is configured in order to deduct from the said programmable read-only memory metering units corresponding to the metering signals transmitted by the central unit.

Description

La présente invention concerne un système de communications téléphoniques plus particulièrenert destinées aux appartements en multi- propriété, ceux loués pour de courtes durées, ou pour les entreprises désirant attribuer un quota de taxes limité à chaque membre du personnel et partout ailleurs où une gestion non centralisée de la taxation peut apporter quelques avantages. The present invention relates to a more specific telephone communication system intended for multi-ownership apartments, those rented for short periods, or for companies wishing to allocate a limited tax quota to each member of staff and everywhere else where non-centralized management taxation can bring some benefits.

On connaît déjà un tel système de communication par la demande de brevet européen nt 87400 189.4. Le système décrit dans ce brevet permet une gestion non centralisée de la taxation. Mais la transmission entre- la borne et les combinés portatifs est de type infrarouge et ce système est plus particulièrement destiné à un usage public, les combinés portatifs pouvant être la propriété de leurs utilisateurs. Such a communication system is already known from European patent application nt 87400 189.4. The system described in this patent allows non-centralized management of taxation. However, the transmission between the terminal and the portable handsets is of the infrared type and this system is more particularly intended for public use, the portable handsets being able to be the property of their users.

Dans la présente invention, la transmission entre la centrale et les combinés individuels est de type filaire et l'invention est plus particulièrement destinée à un usage à l'intérieur des locaux d'habitation les combinés restant partie intégrante de l'installation. In the present invention, the transmission between the central unit and the individual handsets is of the wired type and the invention is more particularly intended for use inside residential premises, the handsets remaining an integral part of the installation.

A cet effet, l'invention comprend une centrale reliée par au moins une ligne d'abonné à un central téléphonique et par de liaison filaires au même nombre de combinés individuels. Une ligne est toujours raccordée au mène combiné. Les fils de transmission entre la centrale et les combinés pernettent d'échanger au moins des informations de taxation et des informations de données phoniques. La centrale est en outre caractérisée par
Se fait quelle est munie de moyens pour transmettre à un combiné déterminé des signaux de taxation qu'elle reçoit du central téléphonique au fur et à mesure de la communication.Le combiné est caractérisé par le fait qu'il pouL-de (es moyens de réception pour un support de mémoire morte programmable du type "carte à mémoire" et qu'il est agencé pour décompter de ladite mémoire morte programmable des unités de taxation correspondant aux signaux de taxation transmis par la centrale. Dans'le but d'éviter toute possibilité de fraude, la centrale est agencée de façon à couper la communication si elle ne reçoit pas l'accusé de réception et de débit envoyés par le combiné après chaque demande de taxation. I1 faut donc que la centrale soit difficilement accessible à l'utilisateur normal du combiné pour éviter des manipulations frauduleuses. On peut, de plus, placer sur chaque ligne un compteur de taxes pour permettre une comparaison à postériori avec le compteur du central téléphonique.
To this end, the invention comprises a central unit connected by at least one subscriber line to a telephone exchange and by wired link to the same number of individual handsets. A line is always connected to the combined lead. The transmission wires between the central station and the handsets allow the exchange of at least charging information and phonic data information. The plant is further characterized by
It is made which is provided with means for transmitting to a determined handset charging signals which it receives from the telephone exchange as the communication progresses. The handset is characterized by the fact that it can reception for a programmable read-only memory medium of the "memory card" type and that it is arranged to deduct from said programmable read-only memory charging units corresponding to the charging signals transmitted by the central unit. possibility of fraud, the central unit is arranged to cut off the communication if it does not receive the acknowledgment of receipt and debit sent by the handset after each charging request, so the central unit must be difficult to access for the user normal handset to avoid fraudulent manipulation.It can also place a tax counter on each line to allow a posteriori comparison with the counter at the telephone exchange.

On décrira maintenant à titre d'exemple non limitatif un mode de réalisation particulier de l'invention en référence aux dessins annexés dans lesquels
- la figure 1 est un schéma d'ensembie du système selon l'invention.
A particular embodiment of the invention will now be described by way of nonlimiting example with reference to the accompanying drawings in which
- Figure 1 is an overall diagram of the system according to the invention.

- la figure 2 est un organigramme illustrant les différentes étapes
d'une liaison à l'aide du système suivant l'invention.
- Figure 2 is a flowchart illustrating the different stages
of a connection using the system according to the invention.

- la figure 3 est un schéma synoptique d'un module de la centrale
selon l'invention.
- Figure 3 is a block diagram of a module of the power plant
according to the invention.


- la figure 4 est un synoptique d'un combiné individuel selon
l'invention. .

- Figure 4 is a block diagram of an individual handset according to
the invention. .

Sur la figure 1 on peut voir la centrale (1) reliée à un central téléphonique (3) par l'intermédiaire de lignes d'abonnés (2). La centrale est ensuite reliée aux combinés individuels (5) par l'intermédiaire des fils (4), chacun des combinés intégrant un support de mémoire morte (6). In Figure 1 we can see the central (1) connected to a telephone exchange (3) via subscriber lines (2). The control unit is then connected to the individual handsets (5) by means of the wires (4), each of the handsets integrating a read-only memory support (6).

Sur la figure 2 on peut voir un organigramme temporel d'une liaison entre le combiné et la centrale dans le cas d'un appel téléphonique réalisé à partir du combiné. Dès le décrochage du combiné (7), la liaison (8) avec le réseau téléphonique est établie et la possibilité de numéroter directement sur le réseau téléphonique est offerte (cette configuration permet de cornposer un numéro vert, ou un numéro d'urgence ou tout autre numéro n'engendrant pas d'acquittement de télétaxes). Dès la détection (9) par la centrale d'un signal téletaxe, la centrale émet des signaux de gestion (10) comportant un code pseudo aléatoire vers le combiné. In Figure 2 we can see a time diagram of a link between the handset and the central unit in the case of a telephone call made from the handset. As soon as you lift the handset (7), the connection (8) to the telephone network is established and the possibility of dialing directly on the telephone network is offered (this configuration allows you to dial a toll-free number, or an emergency number or any other number does not result in acknowledgment of teletaxes). As soon as the central office detects a teletax signal, the central office sends management signals (10) comprising a pseudo-random code to the handset.

Le combine ayant reçu (11) ces codes, vérifie dans un premier temps la présence et la validité (12) du support de mémoire morte programmable.The handset having received (11) these codes, firstly checks the presence and the validity (12) of the programmable read-only memory support.

le débite (13) puis effectue à l'aide d'un algorithme, la transformation du code pseudo aléatoire avant de le renvoyer (14) vers la centrale.the debit (13) then performs using an algorithm, the transformation of the pseudo-random code before sending it (14) to the central.

La centrale compare alors le code de retour avec le code de départ transformé de la même manière pour valider (15) la communication, en cas de désaccord, réitère un certain nombre de fois sa demande de taxation en émettant le même code, puis, si la réponse n'est pas satisfaisante; coupe (16) la communication. Lors de l'appel d'un combiné par un correspondant extérieur, la centrale (1) nintervient pas, le combine sonne normalement.The central unit then compares the return code with the departure code transformed in the same way to validate (15) the communication, in the event of disagreement, repeats a number of times its charging request by issuing the same code, then, if the answer is not satisfactory; cut (16) communication. When a handset is called by an external correspondent, the control panel (1) does not intervene, the handset rings normally.

Sur la figure 3 on peut voir les éléments constituant un module qui relie une ligne d'abonnés téléphonique (2) à un combiné individuel (5) par une ligne interne (4). Les informations phoniques sont converties en signaux numériques par l'interface réseau téléphonique (17) et les signaux de télétaxes par le détecteur (18). Les signaux télétaxes attaquent le microprocesseur (19) en vue de générer des interruptions. Les signaux phoniques numérises entrent dans le bloc de logique cablée (20) pour être traités, puis sont transmis par l'interface de multiplexage de transmission (21) vers le combiné individuel (5) via la ligne interne (4).Le bloc de logique (20) est en dialogue avec le microprocesseur (19), sa fonction est de le décharger au maximum de ses tâches de gestion systématiques pour le spécialiser dans son rôle de cryptage-décryptage des codes de télétaxes. In Figure 3 we can see the elements constituting a module which connects a telephone subscriber line (2) to an individual handset (5) by an internal line (4). The phonic information is converted into digital signals by the telephone network interface (17) and the teletax signals by the detector (18). The teletax signals attack the microprocessor (19) in order to generate interruptions. The digitized phonic signals enter the wired logic block (20) to be processed, then are transmitted by the transmission multiplexing interface (21) to the individual handset (5) via the internal line (4). logic (20) is in dialogue with the microprocessor (19), its function is to unload it as much as possible from its systematic management tasks to specialize it in its role of encryption-decryption of teletax codes.

Sur la figure 4 on peut voir les éléments constituant un combiné individuel : une interface de multiplexage d'émission/réception (22) qui sert à se synchroniser et à cadencer les échanges binaires entre le combiné (5) et le module de la centrale (1), envoie ses données vers le bloc logique (23). Ce bloc logique dialogue avec le microprocesseur (24) et avec l'interface amplificateur convertisseur (25), en distribuant et collectant les informations audio. L'interface (25) reçoit des informations du microphone (26) et en envoie vers le haut-parleur (27). In Figure 4 we can see the elements constituting an individual handset: a transmit / receive multiplexing interface (22) which is used to synchronize and to clock the binary exchanges between the handset (5) and the module of the central unit ( 1), sends its data to the logic block (23). This logic block dialogues with the microprocessor (24) and with the converter amplifier interface (25), by distributing and collecting the audio information. The interface (25) receives information from the microphone (26) and sends it to the speaker (27).

Le microprocesseur (24) gère les informations provenant du clavier (28), et envoie celles destinées aux afficheurs de l'écran (29). Le microprocesseur dirige également le dialogue avec l'interface (30) de support de mémoire morte programmable.The microprocessor (24) manages the information coming from the keyboard (28), and sends that intended for the displays of the screen (29). The microprocessor also directs the dialogue with the programmable read-only memory support interface (30).

L'énergie servant à alimenter les combinés est distribuée par le réseau cablé en provenance de la centrale, celle-ci tirant son alimentation du réseau électrique. Le système de liaison est basé sur un échange de trames numériques transmises en série entre la centrale et le combine, selon le principe de transmission énoncé dans la demande de brevet européen n0 87400 189.4. La centrale envoie une trame comportant un top de synchronisation ainsi qu'un paquet d'impulsions comportant la phonie numérisée, ainsi qu'une série d'impulsions de gestion. La centrale envoie son paquet d'impulsions sur la ligne pendant que le combiné se trouve en mode "haute impédance", et le combiné renvoie immédiatement son paquet d'impulsions en retour. La centrale étant repassée en "haute impédance" (position d'écoute). Ainsi la possibilité de multiplexer des voies reste présente pour procéder à une extension du système vers une organisation de type centrale privée (pour plusieurs lignes PTT arrivant à la centrale, et étant redistribuées vers les combinés sans pour autant associer systematiquement à chaque ligne un combiné précis). The energy used to power the handsets is distributed by the wired network coming from the power plant, which draws its power from the electrical network. The link system is based on an exchange of digital frames transmitted in series between the central unit and combines it, according to the transmission principle set out in European patent application No. 87400 189.4. The control unit sends a frame comprising a synchronization signal as well as a packet of pulses comprising the digitized voice, as well as a series of management pulses. The control unit sends its pulse packet to the line while the handset is in "high impedance" mode, and the handset immediately sends back its pulse packet. The control unit being returned to "high impedance" (listening position). Thus, the possibility of multiplexing channels remains present to extend the system to a private central organization (for several PTT lines arriving at the central, and being redistributed towards the handsets without necessarily associating a precise handset with each line ).

Selon un autre mode de réalisation, la transmission sera assuree par un système de type téléphonique classique (boucle de courant assurant l'alimentation en énergie et supportant les informations phoniques) avec deux sous-porteuses ultrasoniques décalées (une pour chaque sens de transmission) servant de support aux-voies numériques de gestion.  According to another embodiment, the transmission will be provided by a conventional telephone type system (current loop ensuring the power supply and supporting the phonic information) with two offset ultrasonic subcarriers (one for each direction of transmission) serving support to digital management channels.

Claims (2)

REVENDICATIONS 1. Système de communication téléphonique, comprenant une centrale (1) reliée par au moins une ligne d'abonné (2) à un central téléphonique (3) et au même nombre de combinés individuels (5),la centrale et les combines étant munis de moyens de transmission (4) filaire pour échanger au moins des informations de taxation et des informations de données phoniques, caractérise par le fait que la centrale est munie de moyens pour transmettre à un combiné déterminé des signaux de taxation qu'elle reçoit du central téléphonique au fur et à mesure de la communication, que chaque combiné individuel est muni de moyens de recep- tion pour un support (6) de mémoire morte programmable du type "carte à mémoire", et que ledit combiné individuel est agencé pour décompter de ladite mémoire morte programmable des unités de taxation correspondant aux signaux de taxation transmis par la centrale. 1. Telephone communication system, comprising a central office (1) connected by at least one subscriber line (2) to a central office telephone (3) and to the same number of individual handsets (5), the central office and the handsets being provided wired transmission means (4) for exchanging at least charging information and phonic data information, characterized in that the central unit is provided with means for transmitting to a determined handset charging signals which it receives from the central unit telephone as the communication progresses, that each individual handset is provided with receiving means for a programmable read-only memory medium (6) of the "memory card" type, and that said individual handset is arranged to count down from said programmable read-only memory of the charging units corresponding to the charging signals transmitted by the central unit. 2. Système de communication téléphonique, selon la revendication 1, caractérisé par le fait que la présence du support de mémoire morte programmable (6) dans le combiné (5) n'est pas nécessaire pour prendre la ligne et effectuer la numérotation, ceci afin de pouvoir utiliser les numéros ne nécessitant pas l'acquittement de télétaxes:  2. Telephone communication system according to claim 1, characterized in that the presence of the programmable read only memory support (6) in the handset (5) is not necessary to take the line and carry out dialing, this in order to to be able to use numbers that do not require acknowledgment of teletaxes:
FR8800815A 1988-01-18 1988-01-18 Card-based apartment telephone communication system Withdrawn FR2626125A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8800815A FR2626125A1 (en) 1988-01-18 1988-01-18 Card-based apartment telephone communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8800815A FR2626125A1 (en) 1988-01-18 1988-01-18 Card-based apartment telephone communication system

Publications (1)

Publication Number Publication Date
FR2626125A1 true FR2626125A1 (en) 1989-07-21

Family

ID=9362612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8800815A Withdrawn FR2626125A1 (en) 1988-01-18 1988-01-18 Card-based apartment telephone communication system

Country Status (1)

Country Link
FR (1) FR2626125A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731860A1 (en) * 1995-03-17 1996-09-20 Lopez De Montiel Gilles TELEPHONE CONSUMPTION MANAGEMENT DEVICE FOR THE USE OF INDIVIDUALS
ES2137130A1 (en) * 1998-02-04 1999-12-01 Telefonica Sa Telephone terminal. (Machine-translation by Google Translate, not legally binding)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157367A (en) * 1984-01-27 1985-08-17 Nec Corp Call fee charging system
JPS6143867A (en) * 1984-08-08 1986-03-03 Nec Corp System for managing external line transmission
US4595983A (en) * 1983-10-27 1986-06-17 Reliance Electric Company Central office powered credit only telephone paystation
DE3512005A1 (en) * 1985-04-02 1986-10-16 Robert Bosch Gmbh, 7000 Stuttgart PBX system with exchange-authorised extensions

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595983A (en) * 1983-10-27 1986-06-17 Reliance Electric Company Central office powered credit only telephone paystation
JPS60157367A (en) * 1984-01-27 1985-08-17 Nec Corp Call fee charging system
JPS6143867A (en) * 1984-08-08 1986-03-03 Nec Corp System for managing external line transmission
DE3512005A1 (en) * 1985-04-02 1986-10-16 Robert Bosch Gmbh, 7000 Stuttgart PBX system with exchange-authorised extensions

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 201 (E-419)[2257], 15 juillet 1986; & JP-A-61 43 867 (NEC CORP.) 03-03-1986 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 325 (E-368)[2048], 20 décembre 1985; & JP-A-60 157 367 (NIPPON DENKI K.K.) 17-08-1985 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731860A1 (en) * 1995-03-17 1996-09-20 Lopez De Montiel Gilles TELEPHONE CONSUMPTION MANAGEMENT DEVICE FOR THE USE OF INDIVIDUALS
WO1996029816A1 (en) * 1995-03-17 1996-09-26 Gilles Lopez De Montiel Telephone call management device for connection to a standard telephone handset
ES2137130A1 (en) * 1998-02-04 1999-12-01 Telefonica Sa Telephone terminal. (Machine-translation by Google Translate, not legally binding)

Similar Documents

Publication Publication Date Title
EP0115240B1 (en) Telephone set with a bidirectional infrared link between handset and fixed module connected to a subscriber's line
EP0236180B1 (en) Telephonic communication system with a portable hand set
FR2502433A1 (en) DOMESTIC TELEPHONE INSTALLATION AND SERVICE CIRCUITS OF THIS INSTALLATION
FR2753862A1 (en) INTERACTIVE COMMUNICATION METHOD AND SYSTEM BETWEEN TWO TELEPHONE DEVICES VIA THE INTERNET NETWORK
FR2739235A1 (en) ACOUSTIC SIGNAL PROCESSING SYSTEM ON TELEPHONE LINE ASSOCIATED WITH AN ACOUSTIC SIGNAL TRANSMISSION SYSTEM
FR2831002A1 (en) Multipurpose wireless communication system having multiple connector terminal modules/remote assemblies linking with telecommunication line/wireless transceiver connections with modules having two way audio/video digital link.
WO2001008392A2 (en) Remote control for telecommunication and/or computer equipment using short messages
EP0334746A1 (en) Arrangement for the set-up and switching of telephone communications between subscribers of a radio network and/or a wired telephone network
EP0254920B1 (en) System for connecting telephone subscribers organised around a digital time division exchange
FR2722931A3 (en) Voice message transmitter and receiver for multi-user telephone terminal
EP0456547A1 (en) Method and arrangement for telephonic connections for a communication network with autonomous stations
FR2626125A1 (en) Card-based apartment telephone communication system
EP0107998A1 (en) Digital electronic PCM-TDM exchange with decentralized architecture
EP0098201A2 (en) Universal telephone set with personalized push-buttons
EP0403998B1 (en) Architecture of a private telephone installation
EP1172012A1 (en) System for implementing telephone services, control unit for an automatic switch and telephone and computer integration server
EP0610106B1 (en) Signaling processing system for joint support of circuit mode in a telecommunications installation
FR2472319A1 (en) Subscriber multi-service phone station for digital transmission line - has main telephone extension module and telecommunication terminals, series connected and locally supplied
EP1977589B1 (en) Method for transferring a call
EP0433153A1 (en) Telecommunication and management terminal connectable to the telephone network and an automatic calling device for such a terminal
FR2693063A1 (en) Universal call forwarding or phone calls.
EP1358756A2 (en) Distant method and equipment for activating a data communication function by an equipment
FR2620887A1 (en) TELEPHONE INSTALLATION WITH RADIO LINK
FR2733868A1 (en) Adaptable modular interconnector for local computer equipment on ISDN
FR2516328A1 (en) Data collection, storage and transmission system - uses multiplexer to allow transmission via telephone line to central processor through MODEM and interface

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse