FR2887725A1 - Call transfer controlling device for e.g. mobile telephone, has processing module ordering transfer of calls intended to fixed telephone toward mobile telephone when mobile telephone is not positioned in geographical zone - Google Patents

Abstract

The device (D) has a processing module (MT) arranged for determining a position of a mobile telephone (TM) in a manner to be compared with a position of a geographical zone (ZG) in which a fixed telephone (TF) is implanted and associated to the telephone (TM). The module orders transfer of calls intended to the telephone (TF) toward the telephone (TM) when the telephone (TM) is not positioned in the geographical zone. The module orders the transfer of calls intended to the telephone (TM) toward the telephone (TF) when the telephone (TM) is located in the zone. Independent claims are also included for the following: (1) a mobile terminal for a mobile communication network comprising a control device (2) a fixed terminal for a fixed communication network comprising a control device.

Description

The invention relates to communication networks, and more

  particularly the transfer of calls between fixed and mobile (or cellular or portable) communication terminals respectively attached to fixed and mobile (or cellular) communication networks.

  Many people today have a fixed communication terminal, such as a fixed telephone, attached to a fixed communication network, and a mobile communication terminal (or cellular or portable), such as a telephone mobile, attached to a mobile communication network (or cellular or portable).

  Before these people leave the location in which is established the fixed communication line to which their fixed telephone is connected, they can activate a call transfer service from their fixed terminal to their mobile terminal, made available to them by their fixed operator. Similarly, when these people are back in the place in which is established their fixed line of communication, they can activate a call transfer service from their mobile terminal to their fixed terminal, made available to them by their mobile operator.

  In addition, when people have activated the call forwarding service from their fixed terminal to their mobile terminal, they must think about deactivating it when they are back in the location where their fixed line of communication is located, and when they people have activated the call forwarding service from their mobile terminal to their fixed terminal they must think about disabling it when they leave the place in which the fixed line of communication is located.

  Some people often forget to activate or deactivate a call forwarding service. In addition, in order to activate or deactivate a call transfer service, it is necessary to perform key operations and / or selections in menus at the terminal concerned. However, these manipulations discourage some people when they are pressed for time, so they decide to activate a call transfer service only when they leave for several days.

  The invention therefore aims to improve the situation.

  It proposes for this purpose a call transfer control device between a fixed communication terminal, attached to a fixed communication network and associated with a geographical location, and a mobile communication terminal attached to a communication network. mobile connected to said fixed network.

  This control device is characterized in that it comprises processing means responsible for determining the position of the mobile terminal so as to compare it to the position of the geographical area in which the fixed telephone is located (which is associated with the terminal mobile), and to order the transfer of calls that are intended for the fixed terminal to the mobile terminal when the mobile terminal is not positioned in the geographical location area.

  The device according to the invention can comprise other characteristics that can be taken separately or in combination, and in particular: when a call is intended for the mobile terminal, its processing means can be responsible for determining the position of this mobile terminal to order the transfer of the call to the associated fixed terminal if said mobile terminal is located in said geographical location area; its processing means may be responsible for ordering transfers in case of prior activation; - In case of receipt of a call transfer activation request, its processing means may be responsible for sending to a call transfer management equipment of the fixed network, data representative of the communication identifiers of the fixed and mobile terminals associated so that it programs the automatic transfer of calls for the fixed terminal to the associated mobile terminal; - In case of receipt of a call transfer activation request, its processing means may be responsible for sending to a mobile network call transfer management equipment data representative of the terminals of the communication identifiers fixed and mobile, so that it programs the automatic transfer of calls to the mobile terminal to the associated fixed terminal; - In case of detection of output of the mobile terminal outside the geographical location, its processing means may be responsible for causing the issuance of a dedicated warning signal by the mobile terminal, in order to propose to its user their activation for a call transfer control; If the user does not answer for a duration greater than a chosen threshold and starts from the issuance of the warning signal, his processing means can be arranged so as to remain inactivated; - In case of detection of the mobile terminal entry in the geographical location and in case of prior activation, its processing means may be responsible for causing the issuance of a dedicated warning signal by the terminal mobile, in order to propose to its user the interruption of call transfer from the fixed terminal to the associated mobile terminal; In case of reception of a request to interrupt the transfer of calls from the fixed terminal to the associated mobile terminal, its processing means may be responsible for addressing the call transfer management equipment of the fixed network. instructions comprising the data representative of the communication identifiers of the associated fixed and mobile terminals and requiring the deprogramming of the automatic transfer of calls intended for the fixed terminal to the associated mobile terminal; - If no response from the user for a duration greater than a chosen threshold and starting from the issuance of the warning signal, its processing means may be arranged to remain activated; - In case of detection of the output of the mobile terminal outside the geographical location and in case of activation of the transfer of calls from the mobile terminal to the associated fixed terminal, its processing means may be responsible for sending to the call transfer management equipment of the mobile network instructions comprising the data representative of the communication identifiers of the associated fixed and mobile terminals and requiring the deprogramming of the automatic transfer of calls for the mobile terminal to the associated fixed terminal; if there is a call transfer activation request from the mobile terminal to the associated fixed terminal, its processing means may be responsible for sending to a call transfer management equipment of the mobile network, data representative of communication identifiers of the associated fixed and mobile terminals, so that it programs the automatic transfer of calls intended for the mobile terminal to the associated fixed terminal; its processing means may be responsible for performing a calibration procedure intended in particular to identify the position of the geographical area at the current position of the mobile phone under the control of the user of the mobile terminal; its processing means may be responsible for interrogating locating means located in the fixed terminal so as to determine the position of the latter. Alternatively, its processing means may be responsible for interrogating a location equipment implanted in the mobile network to determine the position of the mobile terminal.

  The invention also proposes a mobile terminal, for a mobile communication network lo, equipped with a control device of the type of the one presented above and locating means responsible for supplying the control device with positions of the mobile terminal. .

  The invention also proposes a fixed terminal, for a fixed communication network, equipped with a control device of the type of that presented above.

  The invention is particularly well suited, although not exclusively, to fixed communication networks providing communications to the Internet and to mobile or cellular communication networks, for example of the GSM, GPRS / EDGE, CDMA 2000 or WCDMA type. , CDMA, TDSCDMA or UMTS.

  Other features and advantages of the invention will appear on examining the following detailed description, and the accompanying drawings, in which: FIG. 1 very schematically illustrates a fixed telephone connected to a fixed telephone network and a mobile phone equipped with a first embodiment of a control device according to the invention and attached to a mobile network, and the links for activating a call transfer from the fixed telephone to the mobile phone, the figure 2 very schematically illustrates a transfer of calls from the fixed telephone to the mobile telephone in the case of the combination of networks illustrated in FIG. 1; FIG. 3 very schematically illustrates the links making it possible to deactivate the transfer of landline calls to the mobile phone and activate the transfer of calls from the mobile phone to the landline telephone, in the case of FIG. 4 schematically illustrates a telephone set equipped with a second exemplary embodiment of a control device according to the invention and attached to a fixed telephone network and a mobile telephone connected thereto. to a mobile network, as well as links for activating a transfer of calls from the fixed telephone to the mobile telephone, - Figure 5 very schematically illustrates a transfer of calls from the fixed telephone to the mobile phone in the case of the network combination illustrated in FIG. 4, and FIG. 6 very schematically illustrates the links making it possible to deactivate the transfer of calls from the fixed telephone to the mobile telephone and to activate the call transfer of the mobile telephone. to the fixed telephone, in the case of the network combination illustrated in Figure 4.

  The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any.

  The invention aims to facilitate the activation and deactivation of call transfers between fixed and mobile (or cellular or portable) communication terminals respectively attached to fixed and mobile (or cellular) communication networks.

  In what follows, it is considered as a non-limiting example that the fixed communication network is a fixed telephone network, for example of the type PSTN (for Public Switched Telephone Network), and that the network of Mobile (or cellular) communication is a UMTS type network. However, the invention is limited neither to this type of fixed communication network nor to this type of mobile (or cellular) communication network. Indeed, the invention relates to all types of fixed (ie wired) communication network and all types of mobile (or cellular) communication network, and in particular GSM, GPRSIEDGE, WiFi type networks. , WiMAX, CDMA 2000, CDMA, TDSCDMA or WCDMA.

  Furthermore, it is considered in the following, by way of non-limiting example, that the fixed terminal is a fixed telephone and that the mobile terminal is a mobile phone. The invention can be implemented by means of a call transfer control device that can be implemented either in a fixed terminal or in a mobile terminal.

  Referring first to Figures 1 to 3 to describe a first example of implementation of the invention by means of a call transfer control device D implanted in a mobile phone TM.

  In the first example illustrated in FIG. 1, a fixed telephone network RT, to which is attached a fixed telephone TF associated with a communication identifier (for example its telephone number), is schematically coupled to a mobile network RM, to which is attached a mobile phone TM associated with a communication identifier (for example its telephone number).

  The mobile phone TM is here located in a radio cell C1 of the mobile network RM, controlled by a Node B NB. The fixed telephone TF is for example located in a house and connected to the fixed network RF by a telephone line, possibly supporting the Internet connections (such as an ADSL line). The house is located in a geographical area ZG.

  The control device D, which is here implanted in the mobile phone TM, comprises a processing module MT responsible for determining the position of its mobile terminal TM in order to compare it with the position of the geographical area ZG in which the telephone is located. fixed TF which is associated with said mobile terminal TM, and order the transfer of calls that are intended for the fixed terminal TF to the mobile terminal TM when the latter is not positioned within the geographical area ZG.

  The processing module MT thus proceeds each time its mobile phone TM leaves the geographical area ZG. To do this, it is sufficient for him to compare the successive positions of the mobile phone TM. Preferably, as soon as the processing module MT detects that the mobile phone TM has left the geographical area ZG, it orders the mobile phone TM to issue a characteristic (dedicated) warning signal in order to propose to its user to activate the call transfer service it controls. This warning signal is for example a characteristic ring.

  If the user actuates a key or selects a menu displayed on the screen of the mobile phone TM intended (e) not to activate the call transfer service, or if the user does not react within a specified time to from the issuance of the warning signal, then the processing module MT does not initiate the procedure of transferring calls. He then continues, preferably, to make comparisons between the successive positions of his mobile phone TM and the position of the geographical area ZG, in order to detect either the return of the mobile phone TM in this geographical area ZG, or the next exit of the TM mobile phone outside this ZG geographic area.

  Preferably, the user has the possibility of later activating the call transfer service by selecting the corresponding option in one of the menus of his mobile phone TM.

  One can also consider a variant in which the transfer procedure is triggered if the user does not react within a given time. For example, the user can configure his control device D so that it triggers or not systematically, the transfer procedure when it does not react within the time limit (chosen).

  On the other hand, if the user actuates a key or selects a menu displayed on the screen of the mobile telephone TM, intended to activate the call transfer service, then the processing module MT orders its mobile phone. TM to send to the network equipment ETA1, which manages within the fixed fixed network the call transfers from the fixed telephone TF to the mobile phone TM, a message containing the communication identifiers of the fixed telephones TF and mobile TM and asking him to activate the transfer of calls from the fixed telephone TF to the mobile phone TM. The transfer of this message, from the mobile phone TM to the network equipment ETA1, is embodied by the unidirectional arrow F1 of FIG. 1. To address the activation message to the network equipment ETA1, the mobile telephone TM may example dial a dedicated number by the operator of the fixed network, such as the number 3000 in the case of the operator France Telecom. This dedicated service is for manual use, but it can be emulated by the TM mobile phone. It is also possible to propose an ad-hoc interface between the fixed network and the mobile phone TM to control the call transfer.

  Preferably, the processing module MT determines the positions of its mobile phone TM with the location module ML which is also implanted in its mobile phone TM. Here, the term "location module" refers to the onboard module that is conventionally responsible for determining the position of the mobile telephone TM as a function of the position of the cell in which it is implanted and the positions of the neighboring cells. In the typical GSM example, the mobile phone's location module ML measures the reception quality of the broadcast control channel (BCCH) of each cell from which it receives signals and selects the new cell that offers the best quality. Then, it transmits to the mobile network a message called location update indicating the identifier of the new cell chosen. Knowing the cell in which a mobile phone TM is located, the network therefore knows the approximate position of said mobile phone TM. Whenever it enters a new cell, it notifies the mobile network, allowing the latter to facilitate connections to said mobile phone TM.

  Of course, the processing module MT could determine the positions of its mobile phone TM with other positioning means, such as an onboard satellite positioning module (possibly GPS type), or any location means provided by the core network (as defined in particular by the 3GPP specifications relating to location services: 3GPP TS22.071), and in particular GPS, triangulation, measurements of the radio signal travel time (EOTD for Enhanced Observed Time Difference, UL-TOA for Uplink Time of Arrival, and IPD-OTDOA for Idle Period Downlink Observed Time Difference of Arrival).

  Once the transfer of calls (fixed to mobile) has been activated, the processing module MT can continue to make comparisons between the successive positions of its mobile phone TM and the position of the geographical area ZG, in order to detect either the return of the mobile phone TM in this geographical zone ZG, or the next output of the mobile phone TM outside this geographical area ZG.

  In order for the processing module MT to proceed with the activation of a call transfer, it is preferable to carry out a calibration procedure. To do this, the user and his mobile phone MT must be in the geographical area ZG, and the user must select a calibration option in the menu of his mobile phone MT. When this option is selected, the user is asked to provide the communication identifier of his fixed telephone set TF and the communication identifier of the network equipment ETA1 (which manages call transfers within the fixed network RF ), as well as possibly the communication identifier of the network equipment ETA2 (which manages call transfers within the mobile network RM). Once the processing module MT has these two identifiers, it determines from the location module ML the current position of the mobile phone TM, which corresponds substantially to that of the geographical area ZG.

  Referring now to Figure 2 to describe a situation in which the fixed network RF receives a call (arrow F1) for the fixed telephone TF located in the geographical area ZG. In this case, it is considered that the call transfer from the fixed telephone TF to the mobile telephone TM has been activated by means of the control device D in the network equipment ETA1. Moreover, the mobile phone TM is momentarily located in a cell C2 of the mobile network RM, which is remote from the geographical area ZG implantation of the fixed telephone TF object of the call. On receiving the call destined for the fixed telephone TF, the network equipment ETA1 determines, in a memory (or database) in which it stores all the information relating to the activated call transfers, if the fixed telephone TF makes the subject of a call transfer. This is the case here. Therefore, it determines the communication identifier of the mobile phone TM which is stored in correspondence of the communication identifier of the fixed telephone TF receiving the call. Then, it directs the call to the mobile network RM to which is attached the mobile phone TM concerned by the transfer (arrow F2). The call is then transmitted to the mobile phone TM by the mobile network RM, via the Node B NB which controls the cell C2 in which is temporarily located said mobile phone TM.

  Referring now to Figure 3 to describe a situation in which the mobile phone TM is back in the geographical area ZG where is implanted the fixed phone TF with which it is associated. In this case, it is considered that the call transfer from the fixed telephone TF to the mobile telephone TM has been activated by means of the control device D in the network equipment ETA1. Moreover, the mobile phone TM is momentarily located in a cell C3 of the mobile network RM, which includes the geographical location ZG of the fixed telephone TF.

  When the processing module MT has activated a call transfer, it performs periodically and / or whenever its mobile terminal TM changes cells, comparisons of positions. Therefore, when he realizes, during a comparison of positions, that the mobile phone TM is back in the geographic zone ZG associated with the fixed telephone TF, he orders his mobile phone TM to transmit a signal of characteristic (dedicated) warning in order to propose to its user to deactivate the previously activated call forwarding service. This warning signal is for example a characteristic ring (possibly identical to that used to propose the activation of the call transfer service).

  If the user actuates a key or selects a menu displayed on the screen of the mobile phone TM intended (e) not to disable the call transfer service, or if the user does not react within a specified time to from the transmission of the warning signal, then the processing module MT does not initiate the procedure for deactivating call transfer. It then preferably continues to make comparisons between the successive positions of its mobile phone TM and the position of the geographical area ZG, in order to detect the next exit of the mobile phone TM outside this geographical area ZG.

  Preferably, the user has the possibility of later disabling the call transfer service by selecting the corresponding option in one of the menus of his mobile phone TM.

  On the other hand, if the user actuates a key or selects a menu displayed on the screen of the mobile phone TM, intended (e) to disable the call transfer service, then the processing module MT orders his mobile phone TM to send to the network equipment ETA1 (which activated the call transfer from the fixed telephone TF to the mobile phone TM) a message containing the communication identifiers of the fixed telephones TF and mobile TM and asking him to disable this. call transfer (arrow F1 in Figure 3). To send the deactivation message to the network equipment ETA1 the mobile phone TM can for example dial a dedicated number by the operator of the fixed network, such as the number 3000 in the case of the operator France Telecom.

  Once the network equipment ETA1 has deactivated the call transfer object of the received message, the calls to the fixed telephone TF can be addressed again (arrows F2a and F2b). The user of the fixed telephones TF and mobile TM partners can then receive calls on his fixed telephone TF when they are intended for the latter and his mobile phone TM when they are intended for the latter.

  It can be envisaged that the processing module MT proposes to the user to activate the transfer of calls from his mobile phone TM to his fixed telephone line TF, either at this stage or at the same time that he proposes the deactivation of the transfer. calls from his TF landline to his mobile phone TM, so that all calls are centralized at the TF landline.

  When such an option is possible, the user is invited to press a key or to select a menu displayed on the screen of his mobile phone TM, intended to activate the call transfer service of the mobile phone TM to the TF landline.

  If the user actuates a key or selects a menu displayed on the screen of the mobile phone TM intended (e) not to activate the call transfer service of the mobile phone TM to the fixed telephone TF, or if the user does not react within a period of time, then the processing module MT does not initiate the procedure for transferring calls from the mobile phone TM to the fixed telephone TF.

  Preferably, the user has the possibility of later activating the call transfer service of the mobile phone TM to the fixed telephone TF by selecting the corresponding option in one of the menus of his mobile phone TM.

  On the other hand, if the user actuates a key or selects a menu displayed on Z o the mobile phone screen TM, intended (e) to activate the call transfer service of the mobile phone TM to the fixed telephone TF, then the processing module MT orders its mobile phone TM to send to the network equipment ETA2, which manages within the mobile network RM the call transfers from the mobile phones TM to the fixed telephones TF, a message containing the identifiers communication of the fixed telephones TF and mobile TM and asking him to activate the transfer of calls from the mobile phone TM to the fixed telephone TF. The transfer of this message from the mobile phone TM to the network equipment ETA2 is embodied by the unidirectional arrow F3 of FIG. 3. To send the activation message to the network equipment ETA2, the mobile phone TM can for example dial a dedicated number by the operator of his mobile network, such as number 21 in the case of the operator Orange.

  When the call transfer from the mobile phone TM to the fixed telephone TF has been activated by the control device D in the network equipment ETA2, each call reaching the mobile network RM (arrow F4) and intended for the telephone mobile TM is analyzed by the ETA2 network equipment. More specifically, it determines, in a memory (or database) in which it stores all the information relating to activated call transfers, if the mobile phone TM is the subject of a call transfer. This is the case here. Therefore, it determines the communication identifier of the fixed telephone TF which is stored in correspondence with the communication identifier of the mobile telephone TM receiving the call. Then, it directs the call to the fixed network RF to which is attached the fixed telephone TF concerned by the transfer (arrow F5) so that it transmits it.

  When the transfer of calls from the mobile phone TM to the fixed telephone TF has been activated by means of the control device D, it is preferable that the latter proposes to the user to deactivate it just before or at the same time as he proposes to activate the transfer of calls from the fixed telephone TF to the mobile phone TM, that is to say, following the detection of the output of the mobile phone TM out of the geographical area ZG. This prevents call transfers from being terminated.

  It can also be envisaged that the procedure for deactivating the transfer of calls from the mobile phone TM to the fixed telephone line TF is automatically performed by the processing module MT once the user has chosen to activate the call transfer service of the TF landline to the TM mobile phone.

  If the user chooses to disable the call transfer service of the mobile phone TM to the fixed telephone TF (or in case of automatic deactivation following the activation of the call transfer service of the fixed telephone TF to the telephone mobile TM), the processing module MT orders its mobile phone TM to send to the network equipment ETA2 (which activated the transfer of calls from the mobile phone TM to the fixed telephone TF) a message containing the identifiers of communication of the fixed telephones TF and mobile TM and asking him to deactivate this transfer of calls. To address the deactivation message to the ETA2 network equipment, the mobile phone TM may for example dial a dedicated number by the operator of his mobile network, such as the number 21 in the case of the operator Orange.

  Once the ETA2 network equipment has deactivated the call transfer subject of the received message, the calls to the mobile phone TM can again be addressed to it.

  Referring now to Figures 4 to 6 to describe a second example of implementation of the invention by means of a call transfer control device D 'implanted in a fixed telephone TF'.

  In the second example illustrated in FIG. 4, a fixed telephone network RT, to which is attached a fixed telephone TF 'associated with a communication identifier (for example its telephone number), is schematically coupled to a mobile network RM, to which is attached a mobile phone TM 'associated with a communication identifier (eg its telephone number).

  The mobile phone TM 'is here located in a radio cell C1 of the mobile network RM, controlled by a Node B NB. The TF 'fixed telephone is for example located in a house and connected to the fixed network RF by a telephone line, possibly supporting Internet connections (such as an ADSL line). The house is located in a geographical area ZG.

  The control device D ', which is here implanted in the fixed telephone TF', comprises a processing module MT 'responsible for determining the position of the mobile terminal TM' associated with it in order to compare it with the position of the geographical area ZG in which it is implanted, and to order the transfer of calls that are intended for its fixed terminal TF 'to the mobile terminal TM' when the latter is not positioned within the geographical area ZG.

  The processing module MT 'thus proceeds each time it detects that the mobile phone TM' leaves the geographical area ZG. To do this, he compares the successive positions of the mobile phone TM '. Preferentially, the processing module MT 'detects only if it has been authorized to do so by the user of his fixed telephone TF. In other words, it is preferable for the user to activate the operation of the control device D '. This activation can for example trigger the immediate determination of the position of the mobile phone TM 'by the processing module MT'.

  When the processing module MT 'detects that the mobile phone TM' has left the geographical area ZG, it orders its fixed telephone TF 'to address the network equipment ETA1, which manages within the fixed network RF the transfer of calls from the fixed telephone TF 'to the mobile phone TM', a message containing the communication identifiers of the fixed telephones TF 'and mobile TM' and asking him to activate the call transfer of the fixed telephone TF 'to the TM 'mobile phone. The transfer of this message from the fixed telephone TF 'to the network equipment ETA1 is embodied by the unidirectional arrow FI of FIG. 4. To address the activation message to the network equipment ETA1, the fixed telephone TF can for example dial a dedicated number by the operator of his fixed network, such as the number 21 in the case of the operator France Telecom.

  Preferably, the processing module MT 'determines from the location server EL of the mobile network RM the positions of the mobile phone TM' (which is associated with its fixed telephone TF '), possibly periodically. This location server EL receives, for example, location modules ML, which are located in the mobile telephones TM ', the identifier of each new cell in which their mobile phone TM' enters, and can therefore deduce their successive positions (alternatively , location modules can periodically transmit the identifier of the cell in which their mobile phone is located). However, it is possible to envisage variants in which the location server EL determines the positions of the mobile telephones TM 'by satellite positioning modules (implanted in said mobile telephones TM') or by means of techniques implemented by the heart. RM network mobile network, possibly in cooperation with TM 'mobile phones, such as the aforementioned triangulation techniques or measurements of the radio signal travel time (UL-TOA, E-OTD and IPDL-OTDOA).

  This determination is preferably carried out periodically. However, in a variant, it may be envisaged that the location server EL transmit to the processing module MT '(at the request of the latter) the new position of the mobile telephone TM' (which is associated with the fixed telephone TF 'in which it is implanted) whenever its locator module ML warns it of a change of cell (or position).

  To enable this type of determination, it is advantageous for the processing module MT 'to implement a function that the person skilled in the art calls in English Location Services (or LCS location services) capable of communicating with the location server. EL when it is LCS server type in a client / server environment. In this case, it is preferable that the telephone line which connects the fixed telephone TF 'to the fixed network RF supports Internet communications, such as for example an ADSL line. Communications between the processing module MT '(LCS client) and the location server (LCS server) EL can then be done via the Internet connection.

  In order for a fixed telephone TF 'to be able to access the position information contained in the location server EL, it is conceivable that its user must first subscribe to a specific subscription from the mobile network operator RM to which his mobile phone TM is attached. . It is also necessary that the operator has configured his mobile network RM in terms of authorization, authentication and billing of the subscriber client, and that he has transmitted to his fixed telephone TF 'the parameters necessary for its initial configuration.

  Once the transfer of calls (fixed to mobile) has been activated, the processing module MT 'continues to make comparisons between the successive positions of the mobile phone TM' and the position of the geographical area ZG, in order to detect either the return of the mobile phone TM 'in this geographical zone ZG, or the next output of the mobile phone TM' outside this geographical area ZG.

  In order for the processing module MT 'to activate a call transfer, it is preferable to carry out a calibration procedure. To do this, the user and his mobile phone MT 'must be in the geographical area ZG, and the user must select a calibration option in the menu of his fixed telephone TF'. When this option is selected, the user is invited to provide the communication identifier of his mobile phone TM ', the communication identifier of the network equipment ETA1 (which manages the call transfers within the fixed network RF), the communication identifier (for example an IP address) of the localization equipment (server) EL (which manages the positions of the mobile telephones TM '), and as will be seen below the parameters necessary for the lo initial configuration of the fixed telephone TF 'so that it can communicate with the equipment (server) location EL, and possibly the communication identifier of the network equipment ETA2 (which manages call transfers within mobile network RM). Once the processing module MT 'has these identifiers and parameters, it determines from the location server ML the current position of the mobile phone TM', which corresponds substantially to that of the geographical area ZG.

  Reference is now made to FIG. 5 to describe a situation in which the fixed network RF receives a call (arrow F1) intended for the fixed telephone TF 'located in the geographic area ZG. In this case, it is considered that the call transfer from the fixed telephone TF 'to the mobile telephone TM' has been activated by means of the control device D 'in the network equipment ETA1. Moreover, the mobile phone TM 'is momentarily located in a cell C2 of the mobile network RM, which is remote from the geographical area ZG implantation of the fixed telephone TF' subject of the call.

  On receiving the call for the fixed telephone TF ', the network equipment ETA1 determines, in a memory (or database) in which it stores all the information relating to activated call transfers, if the fixed telephone TF is the subject of a call transfer. This is the case here. Therefore, it determines the communication identifier of the mobile phone TM 'which is stored in correspondence of the communication identifier of the fixed telephone TF' recipient of the call. Then, it directs the call to the mobile network RM to which is attached the mobile phone TM 'concerned by the transfer (arrow F2). The call is then transmitted to the mobile telephone TM 'by the mobile network RM, via the Node B NB which controls the cell C2 in which is temporarily located said mobile phone TM'.

  While this transfer occurs, the processing module MT 'continues to determine (for example periodically) the positions of the mobile phone TM' (which is associated with its fixed telephone TF '), by interrogating the location server EL (or receiving from the latter, automatically, said successive positions), as is shown by the bidirectional dotted arrows F3 in FIG.

  Referring now to Figure 6 to describe a situation in which the mobile phone TM 'is back in the geographical area ZG where is implanted the fixed telephone TF' with which it is associated. In this case, it is considered that the call transfer from the fixed telephone TF 'to the mobile telephone TM' has been activated by means of the control device D 'in the network equipment ETA1. Moreover, the mobile phone TM 'is momentarily located in a cell C3 of the mobile network RM, which includes the geographical location ZG area of the fixed telephone TF'.

  When the processing module MT 'has activated a call transfer, it periodically interrogates the location server EL (bidirectional arrow F1 of FIG. 6) to determine the current position of the mobile phone TM' and to compare it with that of the ZG geographical area, or it performs a comparison of positions each time it receives a new position of the mobile phone TM 'from the location server EL. In either case the mobile phone TM 'provides the location server EL its positions each time it changes cell (arrow F2 of Figure 6).

  Consequently, when the processing module MT 'realizes, during a comparison of positions, that the mobile phone TM' is back in the geographical zone ZG associated with its fixed telephone TF ', it orders the latter to to send to the network equipment ETA1 (which activated the call transfer from the fixed telephone TF 'to the mobile telephone TM') a message containing the communication identifiers of the fixed telephones TF 'and mobile TM' and asking it to deactivate this call transfer (arrow F3 of Figure 6). To address the deactivation message to the network equipment ETA1, the fixed telephone TF 'may for example dial a dedicated number by the operator of its fixed network, such as the number 21 in the case of the operator France Telecom .

  Once the network equipment ETA1 has deactivated the call transfer object of the received message, the calls to the fixed telephone TF 'can again be addressed to him (arrows F4a and F4b). The user of the fixed telephones TF 'and mobile TM' associated can then receive calls on his fixed telephone TF 'when they are intended for the latter and his mobile phone TM' when they are intended for the latter.

  It can be envisaged that the processing module MT 'automatically activates the transfer of calls from the mobile phone TM' to its fixed telephone TF ', following the deactivation of the transfer of calls from its fixed telephone TF' to the mobile telephone TM ' , so that all calls are centralized at the fixed telephone level TF '. However, the fixed network operator must make available to its customers a number dedicated to this type of remote transfer.

  When such an option exists, the processing module MT 'orders its fixed telephone TF' to address the network equipment ETA2, which manages within the mobile network RM the call transfers of mobile phones TM 'to the fixed telephones TF ', a message containing the communication identifiers of the fixed telephones TF' and mobile TM 'and asking him to activate the transfer of calls from the mobile phone TM' to the fixed telephone TF '. The transfer of this message from the fixed telephone TF 'to the network equipment ETA2 is embodied by the unidirectional arrow F5 of FIG. 6. To address the activation message to the network equipment ETA2 the fixed telephone TF' can for example dial a dedicated number by the operator of his fixed network.

  When the call transfer from the mobile phone TM 'to the fixed telephone TF' has been activated by means of the control device D 'in the network equipment ETA2, each call arriving at the level of the mobile network RM (arrow F6) and intended for the mobile phone TM 'is analyzed by the network equipment ETA2. More precisely the latter determines, in a memory (or database) in which it stores all the information relating to activated call transfers, if the mobile phone TM 'is the subject of a call transfer. This is the case here. Therefore, it determines the communication identifier of the fixed telephone TF 'which is stored in correspondence of the communication identifier of the mobile phone TM' recipient of the call. Then, it directs the call to the fixed network RF to which is attached the fixed telephone TF 'concerned by the transfer (arrow F7) so that it transmits it.

  When the call transfer from the mobile phone TM 'to the fixed telephone TF' has been activated by means of the control device D ', it is preferable that the processor module MT' of the latter automatically deactivates it before or substantially at the same time. time it activates the transfer of calls from the fixed telephone TF 'to the mobile phone TM', that is to say following the detection of the output of the mobile phone TM 'out of the geographical area ZG.

  To perform this deactivation, the processing module MT 'instructs its fixed telephone TF' to address to the network equipment ETA2 (which activated the transfer of calls from the mobile phone TM 'to the fixed telephone TF') a message containing the communication identifiers of the fixed telephones TF 'and mobile TM' and asking him to disable this call transfer. To address the deactivation message to the network equipment ETA2 the fixed telephone TF 'can for example dial a dedicated number by the operator of his fixed network.

  Once the network equipment ETA2 has deactivated the call transfer object of the received message, the calls to the mobile phone TM 'can again be addressed to it.

  The control device D, D 'according to the invention, and in particular its processing module MT, MT', can be implemented in the form of electronic circuits, software (or computer) modules, or a combination of circuits and of software.

  The invention is not limited to the embodiments of control device, fixed terminal and mobile terminal described above, only by way of example, but it encompasses all variants that may be considered by the man of the art within the scope of the following claims.

Claims (17)

  1. Device (D; D ') for controlling the transfer of calls between a fixed communication terminal (TF; TF') attached to a fixed communication network (RF) and associated with a geographical location area (ZG ), and a mobile communication terminal (TM; TM ') attached to a mobile communication network (RM) connected to said fixed network (RF), characterized in that it comprises processing means (MT; MT') arranged to determine the position of the mobile terminal (TM; TM ') so as to compare it with the position of the geographical area (ZG) in which said fixed telephone (TF; TF') is associated with said mobile terminal (TM; TM '), and for ordering the transfer of calls intended for said fixed terminal (TF; TF') to said mobile terminal (TM; TM ') when said mobile terminal (TM; TM') is not positioned in said zone geographical location (ZG).   2. Device according to claim 1, characterized in that said processing means (MT; MT ') are arranged, in case of calls for said mobile terminal (TM TM'), to determine the position of the latter ordering the transfer of said call to the associated fixed terminal (TF; TF ') when said mobile terminal (TM; TM') is located in said geographical location area (ZG).   3. Device according to one of claims 1 and 2, characterized in that said processing means (MT, MT ') are arranged to order said transfers in case of prior activation.   4. Device according to claim 3, characterized in that said processing means (MT; MT ') are arranged, upon receipt of a call transfer activation request, to address a management equipment of call transfers (ETA1) of said fixed network (RF), data representative of the communication identifiers of said fixed (TF; TF ') and mobile terminals (TM; TM') associated, so that it programs the automatic transfer of calls intended for said fixed terminal (TF; TF ') to said associated mobile terminal (TM; TM').   5. Device according to one of claims 3 and 4, characterized in that said processing means (MT; MT ') are arranged, upon receipt of a call transfer activation request, to address to call transfer management equipment (ETA2) of said mobile network (RM), data representative of the communication identifiers of said fixed (TF; TF ') and mobile terminals (TM; TM') associated, so that program the automatic transfer of calls for said mobile terminal (TM TM ') to said associated fixed terminal (TF; TF').   6. Device according to one of claims 3 to 5, characterized in that said processing means (MT) are arranged, in case of detection of output of said mobile terminal (TM) out of said geographical area of implantation (ZG) , to cause the transmission of a dedicated warning signal by said mobile terminal (TM), so as to propose to its user their activation for a call transfer control.   7. Device according to claim 6, characterized in that said processing means (MT) are arranged, in case of absence of response of said user for lo a duration greater than a chosen threshold and starting from said transmission of the signal d warning, to remain inactivated.   8. Device according to one of claims 3 to 7, characterized in that said processing means (MT) are arranged, in case of detection of the input of said mobile terminal (TM) in said geographical area of implantation (ZG and in case of prior activation, to cause the transmission of a dedicated warning signal by said mobile terminal (TM), so as to propose to its user the interruption of call transfer from the fixed terminal ( TF) to said associated mobile terminal (TM).   9. Device according to claim 8, characterized in that said processing means (MT) are arranged, in case of receipt of a request to interrupt the call transfer from the fixed terminal (TF) to said associated mobile terminal ( TM), for sending to said call transfer management equipment (ETA1) of said fixed network (RF) instructions comprising said data representative of the communication identifiers of said associated fixed (TF) and mobile (TM) terminals and requiring the deprogramming of the automatic transfer of calls for said fixed terminal (TF) to said associated mobile terminal (TM).   10. Device according to one of claims 8 and 9, characterized in that said processing means (MT) are arranged to remain activated in case of absence of response of said user for a duration greater than a chosen threshold and starting to count said transmission of the warning signal.   11. Device according to one of claims 2 to 10, characterized in that said processing means (MT; MT ') are arranged, in case of call transfer activation request of the mobile terminal (TM; TM'). ) to the associated fixed terminal (TF; TF '), for addressing to a call transfer management equipment (ETA2) of said mobile network (RM), data representative of the communication identifiers of said associated fixed and mobile terminals, so that it programs the automatic transfer of calls for said mobile terminal (TM TM ') to said associated fixed terminal (TF; TF').   12. Device according to claim 11, characterized in that said processing means (MT; MT ') are arranged, in case of detection of output of said mobile terminal (TM; TM') out of said geographical location area- ( ZG) and in the event of activation of call transfer from said mobile terminal (TM; TM ') to said associated fixed terminal (TF; TF'), to address said call transfer management equipment (ETA2) of said network mobile (RM) instructions comprising said data io representative of the communication identifiers of said fixed (TF; TF ') and mobile terminals (TM; TM') associated and requiring the deprogramming of the automatic transfer of calls intended for said mobile terminal (TM; TM ') to said associated fixed terminal (TF; TF').   13. Device according to one of claims 1 to 12, characterized in that said processing means (MT; MT ') are arranged to perform a calibration procedure intended in particular to identify the position of the geographical area (ZG) to the current position of the mobile phone (TM; TM ') under the control of the user of said mobile terminal (TM; TM').   14. Device according to one of claims 1 to 13, characterized in that said processing means (MT) are arranged to interrogate locating means (ML) located in said fixed terminal (TF) so as to determine the position of this last.   15. Device according to one of claims 1 to 5 and 11 to 13, characterized in that said processing means (MT ') are arranged to interrogate a location equipment (EL) implanted in said mobile network (RM) so as to determining the position of said mobile terminal (TM ').   16. Mobile terminal (TM) for a mobile communication network (RM), characterized in that it comprises a control device (D) according to one of claims 1 to 14, and locating means (ML) own supplying said control device (D) in positions of said mobile terminal (TM).   17. Fixed terminal (TF ') for a fixed communication network (RF), characterized in that it comprises a control device (D') according to one of claims 1 to 5, 11 to 13 and 15.