EP0932969A2 - Etablissement d'une connexion de telecommunication - Google Patents

Etablissement d'une connexion de telecommunication

Info

Publication number
EP0932969A2
EP0932969A2 EP97910474A EP97910474A EP0932969A2 EP 0932969 A2 EP0932969 A2 EP 0932969A2 EP 97910474 A EP97910474 A EP 97910474A EP 97910474 A EP97910474 A EP 97910474A EP 0932969 A2 EP0932969 A2 EP 0932969A2
Authority
EP
European Patent Office
Prior art keywords
subscriber station
subscriber
mobile communication
communication system
telecommunication
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Withdrawn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
EP97910474A
Other languages
German (de)
English (en)
Inventor
Hannu TÖYRYLÄ
Jouko Ahvenainen
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.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of EP0932969A2 publication Critical patent/EP0932969A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/27485—Appending a prefix to or inserting a pause into a dialling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • the invention relates to a method for establishing a telecommunication connection between subscriber stations of a first and a second telecommunication system, the first one being a mobile communication system and the second telecommunication system being connected to said mobile communication system via a gateway provided with a gateway number, whereby telecommunication connections are established by dialling a number at a subscriber station of the mobile communication system and by sending a call set-up message from the subscriber station of said mobile communication system, said message comprising a Called Party field and an External Subscriber Number field.
  • the invention relates to mobile communication systems, particularly to mobile communication systems comprising for instance exchanges, base stations and radio phones, i.e. mobile stations, or subscribers and subscriber data bases.
  • the structure of the system can be cellular, each cell having then at least one base station, which communicates with at least one mobile station on one or more radio channels.
  • a method of the invention is meant to be used in particular in what are known as trunking networks, which are typically company networks or private networks used by authorities, where all channels are used either by one or more companies or public authorities.
  • trunking networks are typically company networks or private networks used by authorities, where all channels are used either by one or more companies or public authorities.
  • the invention is mainly suitable for mobile communication systems of a digital radio path.
  • the invention is particularly meant to be used in Private
  • PMR Mobile Radio
  • a solution provided by some systems is to transfer the number dialled by the user as such from a subscriber terminal to a network infrastructure, for instance to an exchange, where the actual analysis of the number is performed using complex inference rules, in which for instance leading digits and the length of a number are taken into account.
  • a gateway number which is a normal 24-bit TETRA number and, in addition, a number which is used to perform forward dialling in the external system, for instance in a public switched telecommunication network. From the user's point of view, it is not practical that he has to separately dial a seven-digit gateway number and then the external network number, which can be even longer than said seven digits. Dialling would thus become far too laborious, particularly as regards PMR networks where the speed of call set-up is important because the networks are used by public authorities.
  • An object of the invention is to make it easier for a user of a subscriber station of a mobile communication system to dial a number when he is contacting, or wishes to establish a connection to, a subscriber station located in another mobile communication system or in a telecommunication system.
  • a further object of the present invention is to provide a method and equipment enabling a user of a subscriber station to use in his user interface numbers of other subscriber stations when he wishes to establish a connection to another subscriber station located in the mobile communication system or in another telecommunication system connected to it.
  • This new type of method is achieved with a method of the invention characterized in that the method comprises the steps of maintaining at the subscriber station of said mobile communication system a memory table, wherein said number that can be dialled by the subscriber station is corresponded to by said gateway number; dialling said number at the subscriber station; fetching from the memory table of the subscriber station the gateway number corresponding to said dialled number; entering said fetched gateway number into said Called Party field of said call set-up message and said number into said External Subscriber Number field; sending said call set-up message to the mobile communication system; establishing a telecommunication connection between said subscriber station of the first telecommunication system and a subscriber station of the second telecommunication system.
  • the invention further relates to a method for establishing a telecommunication connection between a first and a second telecommunication system, the first one being a mobile communication system and the second telecommunication system being connected to said mobile communication system via a gateway provided with a gateway number, whereby telecommunication connections are established by dialling a number at the subscriber station of the mobile communication system and by sending a call set-up message from the subscriber station of said mobile communication system, said message comprising a Called Party field and an External Subscriber Number field.
  • This kind of a method is characterized in that the method comprises the steps of maintaining at the subscriber station of said mobile communication system a memory table, wherein said number that can be dialled by the subscriber station is corresponded to by said gateway number and by a subscriber number of a subscriber station of the second telecommunication system; dialling said number at the subscriber station; fetching from the memory table of the subscriber station the gateway number corresponding to said dialled number and said subsc ⁇ ber number of the subscriber station of the second telecommunication system; entering said fetched gateway number into said Called Party field of said call set-up message and said subscriber number of the second telecommunication system into said External Subscriber Number field; sending said call set-up message to the mobile communication system; establishing a telecommunication connection between said subscriber station of the first telecommunication system and said subscriber station of the second telecommunication system.
  • the invention further relates to a method for establishing a telecommunication connection in a mobile communication system, whereby telecommunication connections are established by dialling a number at a first subscriber station of the mobile communication system and by sending from the first subscriber station a call set-up message comprising a Called Party field.
  • This kind of a method is characterized in that the method comprises the steps of maintaining at the subscriber station of said mobile communication system a memory table, wherein said number that can be dialled by the first subscriber station is corresponded to by a subscriber number of a second subscriber station of the mobile communication system; dialling said number at the subscriber station; fetching from the memory table of the subscriber station the subscriber number corresponding to the dialled number; entering said fetched subscriber number into said Called Party field of said call set-up message; sending said call set-up message to the mobile communication system; establishing a telecommunication connection between the first subscriber station and the second subscriber station.
  • the invention further relates to a subscriber station of a mobile communication system, said subscriber station comprising: transmission means for sending call set-up messages, which comprise a Called Party field, and other messages; receiver means for receiving messages; a user interface, for dialling numbers to establish telecommunication connections; memory means; control means for controlling the subscriber station.
  • the inventive subscriber station is characterized in that said memory means are arranged to maintain a memory table, wherein a number that can be dialled is corresponded to by a gateway number, which corresponds to a gateway, through which a call from the mobile communication system to a second telecommunication system can be set up, and that the subscriber station comprises: fetching means, responsive to the number dialled at the mobile communication system, for fetching from said memory table the gateway number corresponding to said number, and entering means for entering said fetched gateway number into the Called Party field of said call set-up message sent by the subscriber station.
  • the invention further relates to a subsc ⁇ ber station of a mobile communication system, said subscriber station comprising: transmission means for sending call set-up messages comprising a Called Party field, and other messages; receiver means for receiving messages; a user interface, for dialling numbers to establish telecommunication connections; memory means; control means for controlling the subscriber station.
  • the inventive subscriber station is characterized in that said memory means are arranged to maintain a memory table, wherein a number that can be dialled is corresponded to by a subscriber number of a second subsc ⁇ ber station of the mobile communication system, and that the subscriber station comprises fetching means, responsive to the number dialled at the mobile communication system, for fetching from said memory table the subscriber number of the second subscriber station corresponding to said number, and entering means for entering said fetched subscriber number into the Called Party field of said call set-up message sent by the subscriber station.
  • the invention is based on the idea that in the memory means of the subscriber station, i.e.
  • the subscriber terminal is maintained a memory table, wherein a number dialled in call set-up by the user is corresponded to by a gateway number by which the mobile communication system establishes a connection to a second subscriber station, e.g. to another telecommunication or mobile communication system.
  • a gateway number by which the mobile communication system establishes a connection to a second subscriber station, e.g. to another telecommunication or mobile communication system.
  • the subscriber number of the subscriber station of the second telecommunication system can be stored in the memory table.
  • a gateway number corresponding to the dialled number is fetched from the memory; in a second embodiment of the invention said gateway number and a subscriber number of a subscriber station of the second telecommunication system are fetched; and in a third embodiment of the invention a subscriber number of the second subscriber station of the mobile communication system is fetched from the memory.
  • the information fetched from the memory means are then entered into a call set-up message, which the subscriber station sends.
  • the gateway number fetched from the memory is entered into a Called Party field of the call set-up message.
  • the subscriber number of the second telecommunication system dialled by the user of the subscriber station is entered into an External Subscriber Number field.
  • the subscriber number of the second telecommunication system fetched from the memory is entered into the External Subscriber Number field of the call set-up message.
  • the subscriber number of the second subscriber station of the mobile communication system fetched from the memory is entered into the Called Party field of the call set-up message.
  • the generated call set-up message is then sent to a network infrastructure of the mobile communication system, for instance via a base station to an exchange, where the telecommunication connection is established.
  • the number dialled by the user of the subscriber station is thus used as an index for the subscriber terminal's internal memory table, from which the subscriber terminal fetches the gateway number, or the gateway number and the subscriber number of the second telecommunication system, or the subscriber number of the second subscriber station of the mobile communication system and enters the number into the appropriate field in the call set-up message.
  • An advantage of this kind of a method and subscriber station is that they determine the common numbering scheme between the mobile communication system that a subscriber station belongs to and external systems, in connection with the TETRA specifications.
  • Another advantage of the invention is that a method according to it enables an external network to be dialled without using any special characters, such as '*' or '#', although the invention also allows these keys to be used, if desired.
  • a further advantage the invention offers is that it has no impact on an internal number analysis of a mobile communication system, of its exchange for instance, whereby said analysis can be kept simple and uniform in different mobile communication networks. Subscriber terminals are then the only members with internal operation deviating from the operation of solutions according to the prior art. This maintains the possibility to use different subscriber terminals, also those of the prior art, in one and the same mobile communication network, with different equipment suppliers producing different parts of the network and the network still remaining uniform, as regards its operations and features, and in accordance with the standard.
  • the number dialled by the user in the mobile communication network can be fully freely selected, because it is no longer used for call set-up. This allows in particular connections to emergency numbers to be established, because in a mobile communication system any number series can thus be defined as an emergency number, and the same number series in particular that is used in the public switched telecommunication network.
  • the number could be e.g. '112' or '000'.
  • the TETRA system is a PMR system, which is often used by public authorities. For instance particularly the police or ambulance services often need rapid and easy-to-use facilities for emergency calls.
  • An advantage of the invention is that it fully conforms to the TETRA specifications.
  • the TETRA specifications provide fairly liberal possibilities for numbering and this solution does not restrict the numbering possibilities.
  • a further advantage of the invention is that a number entered by the subscriber is not divided or analysed in the mobile communication system, but the mobile communication system only routes the call through the system to the gateway unit provided with an interface to the external telecommunication or mobile communication system.
  • the call to be established is routed directly to the second subscriber station of the mobile communication system.
  • the application of the method of the invention is thus not restricted to a particular numbering solution of a particular organisation, nor does it impose such additional conditions on a number arriving from a radio path that could cause problems of compatibility between subscriber terminals of different suppliers.
  • An advantage of the invention is also that in a method according to the invention it is sufficient that the user of a subscriber terminal dials in the TETRA system only one, fairly short subscriber number, irrespective of whether the call is destined for the TETRA system or for another telecommunication or mobile communication system connected to it.
  • Figures 1A, 1 B and 2 show a memory table of the invention located in memory means of a subscriber station.
  • Figure 3 shows a flow diagram of the operation of a method of the invention.
  • Figure 4 shows a block diagram of a subscriber station of the invention.
  • the invention relates to a mobile communication system, i.e. a radio phone system, according to the TETRA specifications and to its subscriber terminals, i.e. subscriber stations, such as mobile stations, line stations or dispatchers.
  • Subscriber terminals i.e. subscriber stations
  • Methods according to a first and a second embodiment of the invention are used when a TETRA radio phone network is connected to a public switched telecommunication network and/or to exchanges or to a second mobile communication network, which can also be another TETRA network.
  • a third embodiment of the invention can be used when a user of a subscriber station wishes to establish a connection to a second subscriber station of the mobile communication system.
  • the invention is particularly meant for mobile communication systems in which a common numbering scheme is used at the exchange and in the TETRA radio phone system.
  • a subscriber terminal can then, according to the invention, address a connection to be established to a correct destination on the basis of a number dialled by the user and fill in signalling fields of a call set-up message according to the TETRA specifications in such a way that the subscriber does not need to indicate the target network separately in the user interface.
  • a TETRA subscriber terminal according to the invention comprises a table from which the subscriber terminal is able to fetch, using the number dialled by the user as an index, a gateway number and to enter it into a Called Party field of a call set-up message.
  • the subscriber terminal is also able to enter the number dialled by the user into an External Subscriber Number field of the call set-up message or, in a third embodiment of the invention, the subscriber station is able to enter the subscriber number fetched from the memory table into the Called Party field of the call set-up message it sends.
  • the call is thus routed to a gateway which can be a normal TETRA address.
  • An external number is also sent as separate data to the gateway unit, which is then able to use it for dialling in the second telecommunication system.
  • the invention thus relates to a feature of the subscriber terminal which the subscriber terminal is able to use, when the subscriber dials only one number that can be made compatible for instance with the numbering of the automatic branch exchange of a user organisation, to correctly fill in the fields of the call set-up message to be sent from the subscriber station and to hide, in a way, the gateway dialling or the entire subscriber number to be dialled from the user in such a way that the user does not need to separately dial either the gateway number or, if he so wishes, the subscriber number of the subscriber B. Instead, it is sufficient that the user dials a predetermined number series, e.g. '112' or '000', which can be, if desired, the real number of the subscriber B. This applies to the first embodiment of the invention.
  • FIG. 1A shows a memory table of the first embodiment of the invention located in the memory means of the subscriber station. The table illustrates a situation where the number dialled by the user acts as an index to the table.
  • the first column of the table shows the number, in this example '112' and '000' dialled by the subscriber. According to the first embodiment of the invention, these numbers are corresponded to by the gateway numbers of the gateways between the mobile communication system and the second telecommunication system, said gateway numbers being shown in the second column of the table.
  • the second column of the table shows the information to be entered into the Called Party field of the call set-up message to be sent, i.e. in a case according to the invention, the gateway number of an external telecommunication system.
  • the external telecommunication system can be a Public Switched Telephone Network (PSTN), or a gateway number leading to a PABX exchange of a company or an organisation.
  • Figure 1 B shows a memory table of the second embodiment of the invention located in the memory means of a subscriber station.
  • the first column of the table shows the number, in this example '100' and '200' dialled by the subscriber.
  • these numbers are corresponded to by the gateway numbers of the gateways between the mobile communication system and the second telecommunication system, said gateway numbers being shown in the second column of the table.
  • the numbers dialled by the subscriber are corresponded to by subscriber numbers of a subscriber of the second telecommunication system, i.e. the subscriber numbers of the subscriber B.
  • Figure 2 shows a memory table according to the third embodiment of the invention located in the memory means of a subscriber station.
  • the first column of the table shows the number, in this example '100' and '200', dialled by the subscriber.
  • the numbers are corresponded to by the subscriber numbers of the second subscriber in the same mobile communication system, i.e. the subscriber numbers of the subscriber B.
  • the number '112' corresponds to the number '100'
  • the number '000' corresponds to the number '200'.
  • FIG. 3 shows a flow diagram of the operation of a method of the invention.
  • a telecommunication connection is established between subscriber stations of a first and a second telecommunication system, the first one being a mobile communication system and the second telecommunication system being connected to said mobile communication system via a gateway provided with a gateway number.
  • Said mobile communication system is for instance a mobile communication system according to the TETRA specifications and the second telecommunication system is for instance a public switched telephone network, a company exchange or a mobile communication system not conforming to the TETRA specifications.
  • telecommunication connections are established in such a way that a user of a subscriber station of the mobile communication system dials 301 a number, i.e. typically a number series.
  • Connections are usually established by sending a call set-up message from the subscriber station of said mobile communication system, said message comprising a Called Party field and, optionally, an External Subscriber Number field.
  • a memory table (see Figures 1A, 1B and 2), wherein a number that has been or can be dialled by the subscriber station is corresponded to, in the first and in the second embodiment, by a gateway number and, in the third embodiment, a subscriber number of a second subscriber station of the mobile communication system.
  • the subscriber station i.e. the subscriber terminal, fetches 302, after step 301 , in step 302 from the memory table of the subscriber station the gateway number corresponding to said dialled number.
  • the subscriber station compares, in a way, the number dialled by the user to the numbers in the memory of the subscriber station and upon finding the equivalent number, it dials the gateway corresponding to it.
  • the subscriber station dials the gateway number and enters it into the Called Party field of the call set-up message.
  • the subscriber number of the subscriber station of the second telecommunication system is fetched, in addition to the gateway number, from the memory means, said subscriber number being entered into the External Subscriber Number field of the call setup message.
  • the subscriber number of the second subscriber station of the mobile communication system corresponding to the number entered by the user is fetched from the memory. The subscriber number is then entered into the Called Party field of the call set-up message.
  • the fetched gateway number and/or subscriber number are/is thus entered 303 into the Called Party field of the call set-up message and the subscriber number of the dialled second telecommunication system into the External Subscriber Number field of the call set-up message.
  • the step 304 illustrates the first embodiment of the invention, in which the subscriber dials the gateway number in the comparison phase 302 and enters it into the Called Party field of the call set-up message.
  • the gateway number is entered into the Called Party field of the call set-up message.
  • the number '112' dialled by the user is entered into the External Subscriber Number field of the call set-up message.
  • the step 305 illustrates the second embodiment of the invention, in which the subscriber station dials, in the comparison step 302, the gateway number and enters it into the Called Party field of the call set-up message.
  • This is illustrated in the step 305 in Figure 3, which shows that the subscriber has dialled in the step 301 a number, the gateway number corresponding to it and a subscriber number of a subscriber station of the second telecommunication system being fetched in the steps 302 and 303 from the memory means of the subscriber station.
  • the gateway number is entered into the Called Party field of the call set-up message and the subscriber number is entered into the External Subscriber Number field.
  • the step 306 illustrates the third embodiment of the invention, in which the subscriber station dials in the comparison phase 302 the subscriber number of the second subscriber station of the mobile communication system corresponding to the number dialled by the user and enters it into the Called Party field of the call set-up message.
  • All the above alternatives involve the sending 307 of a generated call set-up message to the mobile communication system, for instance via a base station to an exchange, or via line connections to an exchange, if the subscriber station is a line station.
  • the mobile communication system then establishes 308 a telecommunication connection between the first subscriber station and the second subscriber station.
  • the subscriber station to be used in the invention can be a mobile station or a radio phone.
  • the subscriber station can also be a line station connected to the system by line connections, or a dispatcher.
  • the number series entered by the user is only an address, which can equally well include any other number, a letter or a special character whatsoever, such as ' ⁇ ', '%', '&', '?', or '+' or '-' or some other character.
  • the International Telecommunications Union (ITU) has defined in the recommendation ITU-T E.161 the characters recommended to be used in telecommunication traffic.
  • the letters A, B, C or D in particular can be used. They are defined in the ETSI recommendation ETR- 294 of August 1996, which describes the basic principles of user interfaces (Man Machine Interfaces) of the TETRA mobile communication system.
  • the standard defines two different subscriber interfaces or keypad descriptions - a standard version and an enhanced version, in which the above letters are mentioned.
  • FIG. 4 shows a block diagram of a subscriber station, in this case a radio unit, of the invention.
  • the Figure shows a typical radio unit 400, i.e. a radio phone, a mobile station or for instance a subscriber station, used by the subscriber.
  • the radio unit can also function as a repeater station, if it has two transmitter or transceiver units.
  • the function of a transceiver (TX/RX) 401 is to tune to a radio channel used at a particular time.
  • To the transceiver 401 is connected an antenna 402, which is connected to a radio path RP.
  • radio frequencies in the range of 60 to 1000 MHz (VHF and UHF ranges) are used, but other frequencies are als ⁇ possible.
  • a radio path transmission can also be digital, as for instance in systems according to TETRA specifications.
  • a user interface 405 comprises electroacoustic transducer means, typically a headphone 406 and a microphone 407, and optionally buttons for initiating and ending a call, and for dialling. Since in a trunking system a call on the radio path RP is advantageously simplex, the subscriber station usually also has a push-to-talk button that must be depressed for the duration of a speech item. The push-to-talk button is not shown in Figure 4.
  • the function of a controller 403 is to control the operation of the radio unit.
  • the controller 403 is connected to the user interface 405, from which it receives signals e.g. for initiating and ending a call.
  • the controller 403 can also give the user, via the user interface 405, acoustic or visual signals that relate to the operation of the radio phone and/or the radio phone system.
  • the controller 403 is connected to the transceiver TX/RX 401.
  • the transceiver comprises a transmitter Tx and a receiver Rx.
  • the transceiver uses a channel allocated by the controller 403, i.e. the transceiver 401 tunes to the channel, i.e. to a radio frequency and a suitable time slot, allocated by the controller 403.
  • the radio unit of the invention is able to tune to a direct mode channel.
  • the transceiver 401 is also activated by the controller 403.
  • the controller 403 receives and sends signalling messages through the transceiver 401.
  • the radio unit 400 of the invention can be used for instance in a mobile communication system, i.e.
  • a radio unit in a radio system, that comprises a radio network with at least one exchange, base station and subscriber stations, and possibly one or more repeater stations, which relay traffic between the at least one base station and the subscriber stations communicating on the direct mode channel.
  • Said radio unit comprises a transceiver 401 for receiving transmissions sent by other radio units and for sending transmissions to said other radio units, a control unit 403 for controlling the operations of the radio unit and a user interface 405.
  • the radio unit also comprises a memory means 409 for storing the data needed in the radio unit.
  • the memory means 409 are arranged to maintain the memory table according to the invention ( Figures 1A and 1 B), wherein the number that can be dialled is corresponded to by a gateway number, which corresponds to a gateway through which a call from a mobile communication system to a second telecommunication system can be set up.
  • the subscriber station of the invention further comprises fetching means 410, responsive to the number dialled at the mobile communication system, for fetching from the memory table 409 the gateway number corresponding to the number, and entering means 411 for entering the fetched gateway number into the Called Party field of said call set-up message sent by the subscriber station 400.
  • the entering means 411 are arranged to enter the dialled number into the External Subscriber Number field of the call set-up message.
  • the memory table ( Figure 1B; 409) of the subscriber station includes, in addition to the gateway number, the subscriber number of the second telecommunication system corresponding to the number that can be dialled.
  • the entering means 411 are then arranged to enter, in addition to the gateway number, the subscriber number of the subscriber station of the second telecommunication system into the External Subscriber Number field of the call set-up message.
  • the memory means 409 are arranged to maintain a memory table ( Figure 2), in which the number that can be dialled is corresponded to by the subscriber number of the second subscriber station of the mobile communication system.
  • the subscriber station of the invention further comprises fetching means 410, responsive to the number dialled at the mobile communication system, for fetching from said memory table 409 ( Figure 2) the subscriber number of the second subscriber station corresponding to said number, entering means 411 for entering said dialled subscriber number into the Called Party field of said call set-up message sent by the subscriber station 400.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un procédé permettant d'établir une connexion de télécommunication entre des postes d'abonnés d'un premier et d'un second système de télécommunication. Selon l'invention, les connexions sont établies par la composition (301) d'un numéro au niveau d'un poste d'abonné du système de communication mobile et par l'envoi d'un message d'établissement de communication depuis le poste d'abonné dudit système. Le message comprend une zone Appelé et une zone Numéro de l'abonné extérieur. Selon le procédé, le poste d'abonné du système de communication mobile garde une table mémoire, dans laquelle un numéro pouvant être appelé par le poste d'abonné (400) est mis en correspondance par un numéro de passerelle; le numéro est composé (301) au niveau du poste d'abonné; le numéro de passerelle correspondant au numéro composé est extrait (302) de la table mémoire du poste d'abonné; le numéro de passerelle extrait est entré (303) dans la zone Appelé du message d'établissement de communication et un numéro est entré dans la zone Numéro de l'abonné extérieur; le message d'établissement de communication est envoyé (307) au système de communication mobile; et une connexion de télécommunication est établie (308) entre le poste d'abonné du premier système de télécommunication et le poste d'abonné du second système de télécommunication.
EP97910474A 1996-11-01 1997-10-24 Etablissement d'une connexion de telecommunication Withdrawn EP0932969A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI964413 1996-11-01
FI964413A FI103853B (fi) 1996-11-01 1996-11-01 Tietoliikenneyhteyden muodostaminen
PCT/FI1997/000650 WO1998020663A2 (fr) 1996-11-01 1997-10-24 Etablissement d'une connexion de telecommunication

Publications (1)

Publication Number Publication Date
EP0932969A2 true EP0932969A2 (fr) 1999-08-04

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EP97910474A Withdrawn EP0932969A2 (fr) 1996-11-01 1997-10-24 Etablissement d'une connexion de telecommunication

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EP (1) EP0932969A2 (fr)
AU (1) AU727365B2 (fr)
FI (1) FI103853B (fr)
NZ (1) NZ335351A (fr)
WO (1) WO1998020663A2 (fr)

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Publication number Priority date Publication date Assignee Title
GB2350264A (en) * 1999-05-01 2000-11-22 Motorola Ltd Portable or mobile radio which can send pre-stored messages to radios whose addresses are also pre-stored
GB2355624A (en) * 1999-10-20 2001-04-25 Motorola Ltd Call routing table for a mobile telecommunications system
FI20002824L (fi) * 2000-12-21 2002-06-22 Nokia Corp Menetelmä puhelun muodostamiseksi
US7146158B2 (en) 2003-11-14 2006-12-05 Motorola, Inc. Method and apparatus for reformatting dialed numbers
ES2331270B1 (es) * 2007-04-12 2010-06-25 Teltronic, S.A.U. Sistema y metodo de interconexion entre infraestructuras de red.

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JP2689776B2 (ja) * 1991-07-30 1997-12-10 日本電気株式会社 車載携帯電話端末装置
FI94702C (fi) * 1991-08-28 1995-10-10 Nokia Mobile Phones Ltd Lyhytvalinnalla varustettu puhelin
GB2282732A (en) * 1993-03-16 1995-04-12 Motorola Inc Circuit for parsing together sets of sequences of digits to form telephonic identification codes and method therefor
GB9311637D0 (en) * 1993-06-02 1993-07-21 Nokia Mobile Phones Ltd Telephone with speed dialing

Non-Patent Citations (1)

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Title
See references of WO9820663A2 *

Also Published As

Publication number Publication date
NZ335351A (en) 2000-04-28
FI964413A7 (fi) 1998-05-02
WO1998020663A2 (fr) 1998-05-14
WO1998020663A3 (fr) 1998-07-02
FI103853B1 (fi) 1999-09-30
FI964413A0 (fi) 1996-11-01
AU4784297A (en) 1998-05-29
AU727365B2 (en) 2000-12-14
FI103853B (fi) 1999-09-30

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