GB2211050A - Telephone system - Google Patents

Telephone system Download PDF

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Publication number
GB2211050A
GB2211050A GB8724228A GB8724228A GB2211050A GB 2211050 A GB2211050 A GB 2211050A GB 8724228 A GB8724228 A GB 8724228A GB 8724228 A GB8724228 A GB 8724228A GB 2211050 A GB2211050 A GB 2211050A
Authority
GB
United Kingdom
Prior art keywords
token
telephone
telephone system
call
processing means
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Withdrawn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
GB8724228A
Other versions
GB8724228D0 (en
Inventor
Nigel Graham Lionel Harding
Andres Bujosa Roger
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB8724228A priority Critical patent/GB2211050A/en
Publication of GB8724228D0 publication Critical patent/GB8724228D0/en
Publication of GB2211050A publication Critical patent/GB2211050A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION 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
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/343—Cards including a counter
    • G06Q20/3433—Cards including a counter the counter having monetary units
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/0014—Coin-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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/02—Mechanisms 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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms 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
    • G07F7/0866—Mechanisms 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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms 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
    • G07F7/0873—Details of the card reader
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/663—Preventing unauthorised calls to a telephone set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • H04M1/675—Preventing unauthorised calls from a telephone set by electronic means the user being required to insert a coded card, e.g. a smart card carrying an integrated circuit chip
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/36—Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)

Abstract

A telephone system includes a number of portable tokens 3, which may be of the smart card type and include processing and memory and, in use, the tokens are arranged to interact with a telephone 1 to determine whether or not a user is authorised to use that telephone and, if so, what sort of calls he is allowed to make. The token may also be programmed with a number of units which decrement as the system is used and are rechargable. In this way usage of a system may be fully monitored. Conversations may also be encoded by a personal key held within the token. <IMAGE>

Description

Telephone System This invention relates to a telephone system, and in particular it relates to a means for monitoring the usage by each individual person of a particular telephone network and also for enabling or disabling a telephone for use by a particular person or class of persons.
In any particular telephone system the usage by different people or of different phones varies, dependent upon the status and particular requirements of each individual using the system. For instance, in an industrial or commercial environment having a plurality of telephones linked to a central exchange then some users may be authorised to make external and internal calls whereas some other users may only be authorised to make internal calls. It is also useful to monitor the usage of a system both for costing purposes and to determine how to use the system most efficiently. In the medical and other fields it often necessary to link unambiguously the identity of the telephone user and receipient with the content of the message passed so that the sender and receipient have precise knowledge of each others identity and the level of authority for sending each message.It is accordingly useful to be able to encode conversations in response to a personal key unique to each user or class of user.
Modern electronic exchanges can provide such facilities as; allowing only restricted access from certain telephones and monitoring details of length of call, destination phone numbers, etc. However, all such systems suffer in that the monitoring and authorisation procedures are limited to monitoring the use of each individual telephone within a system. This generally means that although a particular user may be authorised to make a certain level of telephone call he is restricted to only using his own telephone and will not have such authorisation if he happens to be in another part of the building say and wishes to make a telephone call.
A second aspect of telephone communications is of course that each telephone call must be paid for. The operators or owners of the telephone system generally monitor the duration and distance of each telephone call and charge the customer accordingly, either by regularly billing the customer or by prepayment by the customer in pay phones or, more recently, card phones. The cards used in such card phones are very basic devices which carry a number of inbuilt units, and decrement these units in response to usage of a telephone accepting the cards. The cards are not intelligent and can not themselves monitor details of calls made or receive, nor can they regulate access to the telephone system from any point.
According to the present invention there is provided a telephone system including a telephone body having local processing means; a portable token including processing means, memory means and input/output means; and a read/write means associated with the telephone and the processing means and adapted to interact with the token; wherein the token is programmable with data unique to a particular person or class of person, which data is used in conjunction with the local processing means to monitor and/or authorise that persons use of the telephone for one or more selected purposes.
In the preferred embodiment of the invention the token and read/write means of the inductively coupled type such as is claimed in published United Kingdom Application No. GB2173623A.
By providing a read/write means (known herein as the "coupler") with each telephone and issuing each user of a system with his own personal token then any user of a system can use any telephone within the system to make which ever calls he is authorised to make. The token, which is most preferably of the "smart card" type, may be used to monitor and log details of each use, such as noting the telephone used by that person, the destination telephone number and the duration of the call and hence the cost of the call. The token may also be adapted to count down as phone calls are made and eventually to "expire" thus providing an indication that the user has used a certain amount of phone calls. By making the card rechargeable, i.e. reprogrammable then these can be provided with a further number of units to be made to be used for phone conversations.Conventional phone cards are generally discarded after they have "run out" of units. The present invention provides an improved system in which the token or card is not discarded but merely reprogrammed or recharged after it has run out.
Embodiments of the invention will now be described by way of example only with reference to the accompanying drawing which shows schematically an arrangement according to the invention.
Referring to the Figure a telephone system comprises a telephone 1 which has associated with it a computer or other processing means 2. This computer may be integral with the telephone as is common in many intelligent telephone systems nowadays or may be a separate local unit. The computer 2 is inductively coupled by means of a coupler to an electronic token, shown here as card 3.
Coupling between the card and coupler is achieved inductively by means of modulated fields, as is described in the aforementioned United Kingdom Patent Application No. GB2173623A. Since the coupling is inductive then the inductive loop associated with the telephone could be placed on a suitable place on the telephone and in order to operate the system the card need merely be placed upon the telephone in a position such that operative coupling occurs.
The card 3 comprises a micro-processor 4 of any convenient type, a receive/transmit circuit 5 and power supply means 6 which may be an onboard battery but, more preferably comprises means for tapping off power which is inductively coupled from the coupler. The card also includes a memory region comprising three areas; an operating system area 7, applications program area 8 and data storage area 9.
The coupler comprises a demodulator 10 and modulator 11 for processing modulated signals received or transmitted after amplification by an amplifier 12.
Unmodulated signals, either after demodulation or before modulation are fed by a suitable connection to the host computer 2 and hence telephone 1.
In use, the card is placed in a position where it operatively couples with the coupler, and hence the computer, whereby signals can be transferred at will between the card and computer. The application program area 8 of the card is programmed with suitable software for the envisaged applications, such as authorisation, call timing, etc.
When a card is initially placed in operative coupling with the telephone the users identity and authorisation to posess that card must be established. This may be done by means such as the input of a personal identification number (PIN) or by any other convenient means such as fingerprint identification, voice recognition, etc.
depending upon the most convenient technology available.
Authentication, validation and verification procedures for the card and reader, such as those disclosed in the applicants co-pending Patent Application No. 8711743 may also be applied at this or subsequent stages in the procedure.
Once the users identity has been established and the card has authenticated itself to the satisfaction of the processor 2 associated with the telephone 1 then the caller may proceed to make his call. When he has entered the number of the telephone to which he wishes to dial the card can tell the computer whether or not that user is authorised to make a call to that other telephone. If so then the call is allowed to be made. If not then the call is aborted. If the call is allowed then, using the techniques outlined in the aforementioned UK Patent Application No. GB2173623A, the number of the phone being dialled from is stored in the card's memory together with the number of the phone to which the call is addressed and also the call is timed and the resulting call time is noted.
Methods of encoding information by using personal keys are well known, and the token is preferably loaded with such a key so that conversations are automatically encoded. This further improves the security of the system.
The token or card may be provided, or preferably adaptively programmed, with a certain number of inbuilt units which are debited as calls are made dependent upon the distance and time of the call and hence its cost.
This can allow precise usage of the phone system to be monitored and means that when a particular user has run out of units he must have his token "recharged" or reprogrammed with further units. The reprogrammability is an important aspect of tokens of the smart card type such as that disclosed in UK Patent Application No. GB2173623A and represents a substantial improvement over the conventional type of phone card which, once it has run out of units, is discarded.
Other advantages or benefits of a system according to the present invention include the ability of each holder of a token to use any phone terminal within the system for incoming or outgoing transactions and the complete prevention of unauthorised use, since a telephone simply will not work without a suitable authorised card and the user inserting his correct identity. Since many telephones nowadays include a display then the user could type in his identity on the telephone key pad and see this displayed so that he can verify that he has entered the correct identity code. The display could also be used to list to the user those calls he is authorised to make according to the data programmed in his card.
Accordingly, the user will not waste time trying to make a call for which he is not authorised and which the combination of the telephone and card will not allow him to make.
Since the card will retain details within its memory of each transaction then when the card is being reprogrammed with further units this stored data can be off-loaded from the card onto, for instance, a central computer, which accordingly retains a data base of all usage of the telephone system. This is convenient for planning and costing purposes.
In some embodiments of the invention, the card or token may also be required to be in operative contact with a telephone to enable an incoming call to be heard or answered. Upon the card holder entering his PIC (Personal Identification Code), which could be, for example, finger print data or any other convenient unique identification then the card could be arranged to interact with the telephone to determine the address from which the call was being made. It could then check in its memory whether or not the card holder was entitled to receive a call from such a source, perhaps by storing details of certain telephone numbers regarding which, for one reason or another, high security is required. If the card holder is authorised to receive such a call then he will be allowed to answer the call.

Claims (13)

1. A telephone system including a telephone body having local processing means; a portable token including processing means memory means and input/output means; and a read/write means associated with the telephone and the processing means and adapted to interact with the token; wherein the token is programmable with data unique to a particular person or class of person, which data is used in conjunction with the local processing means to monitor and/or authorise that persons use of the telephone for one or more selected purposes.
2. A telephone system as claimed in claim 1 wherein at least some of the data is an encoding key and the token and processing means are adapted to encode transmitted information in accordance with the key.
3. A telephone system as claimed in claim 1 or claim 2 wherein the portable token and read/write means are adapted to inductively couple.
4. A telephone system as claimed in any of the preceding claims wherein the token and processing means are arranged to cooperate to store details of call destinations and duration within the token.
5. A telephone system as claimed in any of the preceding claims wherein the token is programmable with data indicating the type of phone call allowed to the person to whom that token is assigned; and the processing means is adapted to allow only calls which are authorised by that data to be made when the token is inoperative contact with the read/write means.
6. A telephone system as claimed in any of the preceding claims and including a plurality of telephone bodies, each having local processing means and read/write means, and wherein each telephone has a unique address, and the token is adapted to store that address each time the token is used with that particular telephone.
7. A telephone system as claimed in any of the preceding claims wherein the token is programmable with a plurality of "units" which decrement as calls are made using the token, and the token is reprogrammable so that further units can be added and/or existing units refreshed.
8. A telephone system as claimed in any of the preceding claims including means on the token and processing means which are adapted to cooperate to check that a particular user is verified and authorised to use that token and that telephone.
9. A telephone system substantially as herein before described with reference to, and as illustrated by, the accompanying drawing.
10. A method for use of a telephone system as claimed in any of the preceding claims comprising; assigning a token to a particular class of user; programming the token with chosen data; operatively coupling the token and read/write means; establishing that the user is authorised to use the token and telephone; checking whether a call the user wishes to make is an authorised one, and, if so, allowing that call to be made; and storing details of the call destination and/or duration within the token.
11. A method as claimed in claim 10 further including using at least some of said data as an encoding key to encode the information transmitted by the system.
12. A method as claimed in claim 9 or claim 10 further including programing the token with a plurality of units and, when a call is being made, decrementing these units in accordance with call duration and distance.
13. A method for use of a telephone system substantially as hereinbefore described.
GB8724228A 1987-10-15 1987-10-15 Telephone system Withdrawn GB2211050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8724228A GB2211050A (en) 1987-10-15 1987-10-15 Telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8724228A GB2211050A (en) 1987-10-15 1987-10-15 Telephone system

Publications (2)

Publication Number Publication Date
GB8724228D0 GB8724228D0 (en) 1987-11-18
GB2211050A true GB2211050A (en) 1989-06-21

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225915A (en) * 1988-10-13 1990-06-13 In Business Enhancement Limite Phone card only allows use of stored numbers thereon
EP0481482A2 (en) * 1990-10-19 1992-04-22 Nec Corporation Auxiliary unit for home telephone allowing use of prepaid cards
FR2680261A1 (en) * 1991-08-09 1993-02-12 Realisations Tech Securite Memory card and telephone metering device with card reader
EP0538933A1 (en) * 1991-10-14 1993-04-28 Philips Electronics Uk Limited Communications receiver employing a prepaid identity card
GB2267794A (en) * 1992-04-24 1993-12-15 Alan Kilpatrick Conroy A pre-payable mobile cellular phone
EP0581689A1 (en) * 1992-07-31 1994-02-02 Smart Ingenierie Communication method and system between a calling equipment and a called equipment via a telephone exchange
FR2708363A1 (en) * 1993-06-28 1995-02-03 Korea Telecommunication Prepaid integrated circuit card and method for controlling the same.
WO1995009505A1 (en) * 1993-09-30 1995-04-06 Siemens Aktiengesellschaft Subscriber-oriented control process for releasing services of a communications system
FR2719730A1 (en) * 1994-05-06 1995-11-10 France Telecom System for secure telephone transactions.
GB2295292A (en) * 1994-11-15 1996-05-22 Terence Michael Smith Mobile Prepaid Telephone
WO1996029810A1 (en) * 1995-03-17 1996-09-26 Kenven Developments Limited Improvements in or relating to the control or monitoring of telephonic apparatus
WO1996034483A1 (en) * 1995-04-28 1996-10-31 Koninklijke Ptt Nederland N.V. A device for transparent interaction between an ic card and a remote terminal
WO1997011548A2 (en) * 1995-09-21 1997-03-27 Siemens Aktiengesellschaft Process for ensuring a securing interface between a telephone with a card and the network in a telephone system
FR2744822A1 (en) * 1996-02-14 1997-08-14 Philips Electronics Nv TRANSMISSION SYSTEM INCLUDING TERMINAL DEVICES EQUIPPED WITH A PRE-PAYMENT CIRCUIT AND PROCESS IMPLEMENTED IN SUCH A SYSTEM
WO1999018708A2 (en) * 1997-10-06 1999-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and device in computer networks
EP0963097A1 (en) * 1998-06-05 1999-12-08 Siemens Aktiengesellschaft Communication terminal for processing and evaluating chip cards or coins
FR2782875A1 (en) * 1998-08-27 2000-03-03 France Telecom Variable parameter telephone system with security features for prison, has extensions for use by detainees and central supervision device controlling access and monitoring facilities
US6061664A (en) * 1995-10-10 2000-05-09 Koninklijke Ptt Nederland N.V. System for facilitating the ordering and paying of services by means of a communication network
FR2817425A1 (en) * 2000-11-30 2002-05-31 Audiosmartcard Internat Sa Access authentication to telecommunications networks, especially using an access smart card, with security increased by use of biometric, particularly voice, data
WO2004064363A1 (en) * 2003-01-13 2004-07-29 Giesecke & Devrient Gmbh Method for refusing incoming calls according to a call number control carried out on the sim card
EP1777659A1 (en) * 2005-10-20 2007-04-25 Scheidt & Bachmann Gesellschaft mit beschränkter Haftung Electronic terminal device comprising an integrated electronic means of identification

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088639A2 (en) * 1982-03-09 1983-09-14 Martha Newkirk Credit card actuated telecommunication access network
EP0185365A1 (en) * 1984-12-18 1986-06-25 GN Communications A/S A pay phone system or a pay service system
GB2179524A (en) * 1985-08-12 1987-03-04 Oki Electric Ind Co Ltd Credit card radio telephone system
GB2184919A (en) * 1985-09-10 1987-07-01 Plessey Co Plc Credit transaction arrangements
EP0234711A2 (en) * 1986-01-21 1987-09-02 Snowflake Systems Limited Information transmission/processing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088639A2 (en) * 1982-03-09 1983-09-14 Martha Newkirk Credit card actuated telecommunication access network
EP0185365A1 (en) * 1984-12-18 1986-06-25 GN Communications A/S A pay phone system or a pay service system
GB2179524A (en) * 1985-08-12 1987-03-04 Oki Electric Ind Co Ltd Credit card radio telephone system
GB2184919A (en) * 1985-09-10 1987-07-01 Plessey Co Plc Credit transaction arrangements
EP0234711A2 (en) * 1986-01-21 1987-09-02 Snowflake Systems Limited Information transmission/processing

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225915A (en) * 1988-10-13 1990-06-13 In Business Enhancement Limite Phone card only allows use of stored numbers thereon
EP0481482A2 (en) * 1990-10-19 1992-04-22 Nec Corporation Auxiliary unit for home telephone allowing use of prepaid cards
EP0481482A3 (en) * 1990-10-19 1994-01-19 Nec Corp
FR2680261A1 (en) * 1991-08-09 1993-02-12 Realisations Tech Securite Memory card and telephone metering device with card reader
US5371493A (en) * 1991-10-14 1994-12-06 U.S. Philips Corporation Radio paging receiver wherein programming information is readout from a discardable data card inserted therein
EP0538933A1 (en) * 1991-10-14 1993-04-28 Philips Electronics Uk Limited Communications receiver employing a prepaid identity card
KR100298103B1 (en) * 1991-10-14 2001-10-24 요트.게.아. 롤페즈 Communication receiver
GB2267794A (en) * 1992-04-24 1993-12-15 Alan Kilpatrick Conroy A pre-payable mobile cellular phone
FR2694468A1 (en) * 1992-07-31 1994-02-04 Smart Ingenierie Method and system for communication between calling equipment and equipment called via a switch.
EP0581689A1 (en) * 1992-07-31 1994-02-02 Smart Ingenierie Communication method and system between a calling equipment and a called equipment via a telephone exchange
FR2708363A1 (en) * 1993-06-28 1995-02-03 Korea Telecommunication Prepaid integrated circuit card and method for controlling the same.
WO1995009505A1 (en) * 1993-09-30 1995-04-06 Siemens Aktiengesellschaft Subscriber-oriented control process for releasing services of a communications system
FR2719730A1 (en) * 1994-05-06 1995-11-10 France Telecom System for secure telephone transactions.
WO1995030975A1 (en) * 1994-05-06 1995-11-16 France Telecom System for secure telephone transactions
GB2295292A (en) * 1994-11-15 1996-05-22 Terence Michael Smith Mobile Prepaid Telephone
WO1996029810A1 (en) * 1995-03-17 1996-09-26 Kenven Developments Limited Improvements in or relating to the control or monitoring of telephonic apparatus
WO1996034483A1 (en) * 1995-04-28 1996-10-31 Koninklijke Ptt Nederland N.V. A device for transparent interaction between an ic card and a remote terminal
WO1997011548A2 (en) * 1995-09-21 1997-03-27 Siemens Aktiengesellschaft Process for ensuring a securing interface between a telephone with a card and the network in a telephone system
US6047070A (en) * 1995-09-21 2000-04-04 Siemens Aktiengesellschaft Process for ensuring a securing interface between a telephone with a card and the network in a telephone system
WO1997011548A3 (en) * 1995-09-21 1997-07-10 Siemens Ag Process for ensuring a securing interface between a telephone with a card and the network in a telephone system
US6061664A (en) * 1995-10-10 2000-05-09 Koninklijke Ptt Nederland N.V. System for facilitating the ordering and paying of services by means of a communication network
EP0790587A1 (en) * 1996-02-14 1997-08-20 Koninklijke Philips Electronics N.V. Transmission system with terminal devices provided with a prepayment circuit, terminal device suitable for such a system and method implemented in such a system
FR2744822A1 (en) * 1996-02-14 1997-08-14 Philips Electronics Nv TRANSMISSION SYSTEM INCLUDING TERMINAL DEVICES EQUIPPED WITH A PRE-PAYMENT CIRCUIT AND PROCESS IMPLEMENTED IN SUCH A SYSTEM
WO1999018708A3 (en) * 1997-10-06 1999-06-17 Ericsson Telefon Ab L M Method and device in computer networks
WO1999018708A2 (en) * 1997-10-06 1999-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and device in computer networks
AU752541B2 (en) * 1997-10-06 2002-09-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and device in computer networks
EP0963097A1 (en) * 1998-06-05 1999-12-08 Siemens Aktiengesellschaft Communication terminal for processing and evaluating chip cards or coins
EP0989720A1 (en) * 1998-08-27 2000-03-29 France Telecom Telephone apparatus for a prison medium
FR2782875A1 (en) * 1998-08-27 2000-03-03 France Telecom Variable parameter telephone system with security features for prison, has extensions for use by detainees and central supervision device controlling access and monitoring facilities
FR2817425A1 (en) * 2000-11-30 2002-05-31 Audiosmartcard Internat Sa Access authentication to telecommunications networks, especially using an access smart card, with security increased by use of biometric, particularly voice, data
WO2004064363A1 (en) * 2003-01-13 2004-07-29 Giesecke & Devrient Gmbh Method for refusing incoming calls according to a call number control carried out on the sim card
EP1777659A1 (en) * 2005-10-20 2007-04-25 Scheidt & Bachmann Gesellschaft mit beschränkter Haftung Electronic terminal device comprising an integrated electronic means of identification

Also Published As

Publication number Publication date
GB8724228D0 (en) 1987-11-18

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