WO2005009016A1

WO2005009016A1 - Method and device for activating transfer of at least one short message

Info

Publication number: WO2005009016A1
Application number: PCT/FR2003/001883
Authority: WO
Inventors: Philippe Lottin
Original assignee: France Telecom
Priority date: 2003-06-19
Filing date: 2003-06-19
Publication date: 2005-01-27
Also published as: AU2003260610A1

Abstract

The invention concerns a method for activating a transfer of at least one short message between a first telecommunication terminal and a second telecommunication terminal via a telecommunication network, the first telecommunication terminal comprising a man-machine interface and being in telephone communication with the second telecommunication terminal. The invention is characterized in that the method comprises the following steps: detecting during the telephone communication at least one predetermined command of the first telecommunication terminal user via the man-machine interface and generating (E303, E503) at least one signal on the telecommunication network (30) to activate the transfer of the or each short message between the first telecommunication terminal and the second telecommunication terminal. The invention also concerns the associated device.

Description

Method and device for activating a transfer of at least one short message

The present invention relates to a method and a device for activating a transfer of at least one short message between a first telecommunications terminal and a second telecommunications terminal. Currently, a service for sending short messages, a service better known by the SMS signs abbreviation of the English terms Short Message Service, is available on mobile telephone networks. This service allows a user of a mobile phone to enter the text of a short message and to send this text to a recipient who himself has a mobile phone. Given the success of this service, it has been extended to the fixed telephone network. The ETSI standard (European Telecommunication Standards Institute) described in the document ETSI EN 201 912 entitled Access and Terminais (AT); Short Message Service (SMS) for PSTN / ISDN; Short Message Communication between a fixed network Short Message Terminal Equipment and a Short Message Service Center offers a solution to extend this service to the fixed telephone network. According to this standard, short messages are transmitted via an SMSC short message service center. SMSC is the abbreviation for the English terms Short Message Service Center. The transfer of a short message between two telephone handsets is divided into two stages. The first step consists, for the telephone handset wishing to send a short message, to generate a call to establish a communication with the short message center SMSC and to send the short message to the SMSC. In addition to this sending, the wired network communicates to the SMSC the telephone number of the recipient of the short message. When the short message has been transferred to the SMSC, the communication between the telephone handset and the SMSC is interrupted. The second step is for the SMSC to generate a call to establish a communication with the telephone handset receiving the short message and at the same time communicating its identifier. With this identifier, the receiving telephone handset identifies the call and automatically takes the call. The short message is then transferred from the SMSC to the destination telephone handset and the communication between the SMSC and the telephone handset is interrupted. This type of short message transfer in a wired telecommunications network provides an interesting service for users, but this service nevertheless has a certain number of limitations. Indeed, it is not possible for a user of a telephone handset to transmit and / or receive short messages when he is in telephone communication with a third party. To send and / or receive a short message, the user must interrupt the telephone communication. This is particularly troublesome in that the short message may be related to the communication in progress. If a user is in telephone communication with a third party and agrees with the latter to transfer data to him in the form of short messages, the user must interrupt the communication with the third party, dial the SMSC telephone number to communicate the short message. , interrupt the communication with the SMSC to finally redial the telephone number of the third party and thus continue the communication with the third party. This technique, according to which telephone communications and short message transfers are dissociated, penalizes the user of such a service. The invention aims to solve the drawbacks of the prior art by proposing a method for activating a transfer of at least one short message between a first telecommunications terminal and a second telecommunications terminal by means of '' a telecommunications network, the first telecommunications terminal comprising a man-machine interface and being in telephone communication with the second telecommunications terminal, characterized in that the method comprises the steps of: - detection during telephone communication of at minus a predetermined command from the user of the first telecommunications terminal via the man-machine interface, - generation of at least one signal on the telecommunications network to activate the transfer of or each short message between the first telecommunications terminal and the second telecommunications terminal. Correlatively, the invention proposes a device for activating a transfer of at least one short message between a first telecommunications terminal and a second telecommunications terminal via a telecommunications network, the first telecommunications terminal. comprising a man-machine interface and being in telephone communication with the second telecommunications terminal, characterized in that the device comprises: - means of detection during the telephone communication of at least one predetermined command from the user of the first terminal telecommunications via the man machine interface, - means for generating at least one signal on the telecommunications network to activate the transfer of or each short message between the first telecommunications terminal and the second communication terminal telecommunication. Thus, it is possible to double conventional telephone communications with short messages. It is now possible for the user of a telecommunications terminal to comment on the content of a short message transmitted during a telephone call. The user of a telephone handset can, by a simple command, initiate the transmission of short messages without having to interrupt the telephone call in progress. Thus, the invention allows the transfer of short messages directly between two telecommunication terminals when the two telecommunication terminals are in the course of telephone communication with one another. Communication telephone can be enriched by short messages. Short messages can also be enriched by a conversation between the interlocutors. In addition, the user of a telecommunications terminal no longer needs to interrupt the communication with his interlocutor and have to redial the telephone number of the latter to send him a short message. In addition, the operations to be performed for sending a short message are simplified for the user of the telecommunications terminal. More specifically, the or each short message is a short message belonging to the group of short messages of SMS or EMS or MMS type. Thus, the short messages transmitted are messages in accordance with existing standards or those being defined. It is thus possible to exchange information during a telephone communication between, for example, a telephone connected to a wired telecommunications network and a telephone to a GSM type wireless telecommunications network, for example. SMS-type messages are small and are transmitted in a relatively short time. Communication in progress will therefore be only slightly disturbed. Multimedia Message Service (MMS) messages are short messages that include sequences of video images or music. EMS (Enhanced Message Service) messages are short messages that can include image or music sequences and can, among other things, include vCard-type electronic business cards. These messages thus make it possible during a telephone communication to comment on the content of these messages or to be able to transmit or receive the coordinates of a person. Advantageously, the or each short message comprises at least one electronic business card. Thus, it is possible during a communication to transfer the coordinates of a person automatically and this without any risk of error of understanding or transcription. In addition, electronic business cards such as those conforming to the vCard specification contain a significant amount of information about the person such as their different telephone numbers for the workplace, home or mobile phone number. These same electronic business cards also include the postal addresses of a person's home and / or workplace, the email address of that person, or even a photo of the person. All this information is accessible directly by a user and this during communication. The user, with the electronic business cards received, can then search according to different fields in the database made up of the electronic addresses he has received and quickly access the relevant information he is looking for. The user can also view the photo in the electronic business card on the screen of his telecommunications terminal, even during communication. More specifically, the first telecommunications terminal transfers the or each short message according to a predetermined protocol and according to an FSK type modulation. Thus, the short message transfer is carried out according to modulations known to other telecommunication terminals. No compatibility problem exists then. More specifically, the or each short message is transferred a predetermined time after the signal generated. Thus, the modem of the remote telecommunications terminal can be activated on reception of the signal for the transfer of a short message. By performing the message transfer after a predetermined time, it guarantees good reception of the short message. According to a second aspect of the invention, the second telecommunications terminal is a server and the signal generated is a DTMF voice frequency signal. Thus, the invention also allows the transfer of short messages from servers comprising databases. More precisely, following the generation of the signal on the network, a dual-frequency signal generated by the server is detected, a predetermined voice frequency signal is generated in response to the dual-frequency signal, and at least one data frame is received V23. More precisely, at least one directory identifier is determined from information included in the N23 frame, the or each short message is received, the short message being transmitted according to a predetermined protocol and according to an FSK type modulation and the or each short message in the directory associated with the determined identifier. Thus, it is possible to transfer a short message to a mailbox or a particular directory of a telecommunications terminal. Several users of the same telecommunication terminal can thus receive short messages and store them without the other users of the telecommunication terminal being able to access them. The confidentiality of short messages is thus guaranteed. The invention also relates to a method of activating a transfer of at least one short message between a first telecommunications terminal and a second telecommunications terminal via a telecommunications network, the first telecommunications terminal comprising a man-machine interface and being in telephone communication with a third telecommunications terminal, characterized in that the method comprises the steps of: - detection during the telephone communication between the first and the third telecommunications terminals of at least one command predetermined by the user of the first telecommunications terminal via the man-machine interface of the first telecommunications terminal, - generation by the first telecommunications terminal of at least one signal on the telecommunications network to activate the transfer of the or each short message between the first telecommunications terminal and the second telecommunications terminal. Correlatively, the invention proposes a device for activating a transfer of at least one short message between a first telecommunications terminal and a second telecommunications terminal via a telecommunications network, the first telecommunications terminal. comprising a man-machine interface and being in telephone communication with a third telecommunications terminal, characterized in that the device comprises: - means of detection during the telephone communication between the first and the third telecommunications terminals of at least one predetermined command of the user of the first telecommunication terminal via the man-machine interface of the first telecommunication terminal, - means of generation by the first telecommunication terminal of at least one signal on the telecommunication network for activate the transfer of or each messa ge runs between the first telecommunication terminal and the second telecommunication terminal. More specifically, the second telecommunications terminal is a short message server and the signal generated is a DTMF voice frequency signal. Thus, it is possible to receive during a telephone communication with another telecommunication terminal to receive short messages from a short message server delivering short messages from other telecommunication terminals of the telecommunication network. This is particularly useful for receiving short messages of an emergency nature. More precisely, prior to the step of detecting at least one predetermined command, a dual-frequency signal received from the telecommunications network is detected, a predetermined voice frequency signal is generated in response to the dual-frequency signal, minus a V23 data frame, it is determined whether information contained in the V23 data frame is representative of a short message server and an information message is generated to the user of the telecommunications terminal if the information contained in the N23 data frame includes an identifier of a short message server. Thus, the user can differentiate a conventional call signal from an attempt to transmit a short message. The user informed of the short message can accept it or not. More specifically, the short message server transfers the or each short message, the or each short message being transmitted according to a predetermined protocol and according to an FSK type modulation. More specifically, following the reception of the or each short message, at least one other DTMF voice frequency signal is generated to restore telephone communication between the first telecommunications terminal and the third telecommunications terminal. Thus, communication with the second telecommunications terminal is restored as quickly as possible. The user of the second telecommunications terminal is not or only slightly disturbed by the reception by the first telecommunications device of the short message. The invention also relates to a method of receiving at least one short message between two telecommunication terminals via a telecommunication network, a telephone communication being established between the two telecommunication terminals, characterized in that the method includes the steps, performed by one of the telecommunications terminals, of detection during telephone communication of at least one predetermined signal from the other telephone handset, activation of a signal generation and / or frame detection means for the reception of a short message during the communication telephone, receiving the short message in accordance with a predetermined protocol and processing the short message received. Correlatively, the invention provides a device for receiving at least one short message between two telecommunication terminals via a telecommunication network, a telephone communication being established between the two telecommunication terminals, characterized in that the device comprises means for detecting during the telephone communication at least one predetermined signal from the other telephone handset, means for activating a means for generating signals and / or detecting frames for reception a short message during the telephone communication, means for receiving the short message in accordance with a predetermined protocol and means for processing the short message received. More precisely, the predetermined signal is a dual-frequency signal, the predetermined protocol is a UBS protocol and the processing of the short message consists in storing it. More precisely, the loudspeaker of the telecommunications terminal is deactivated when the short message is received. Thus, the user of the first telecommunication terminal is not disturbed by the signals exchanged for the transfer and during the transfer of the short message. The invention also relates to the computer program stored on an information medium, said program comprising instructions making it possible to implement the methods described above, when they are loaded and executed by a computer system. The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which: FIG. . 1 represents a telecommunication network in which a telecommunication terminal communicates with a server of the telecommunication network or another telecommunication terminal according to the invention: Fig. 2 shows a schematic view of the telephone handset according to the invention; Fig. 3 shows the short message transmission algorithm performed by the telephone handset according to a first embodiment of the invention; Fig. 4 represents the algorithm for receiving short messages carried out by a telecommunications terminal according to the first embodiment of the invention; Fig. 5 shows the algorithm for receiving short messages performed by the telephone handset according to a second embodiment of the invention; Fig. 6 shows the algorithm for receiving short messages from an SMSC server and carried out by the telephone handset 10 during telephone communication with another telecommunication device. Fig. 1 represents a telecommunications network in which a first telecommunications terminal, more specifically a telephone handset 10 communicates with a server 20 of the telecommunications network 30 or a telecommunications terminal 33 according to the invention. The telecommunications network 30 includes a server 20. The telecommunications network 30 is for example a PSTN network, acronym for Switched Telephone Network. The telecommunications network 30 can also be an ISDN (Digital Network with Service Integration) type network. The server 20 is for example a directory server 20 which broadcasts written messages for example in the form of short SMS messages. The directory server 20 communicates with the subscribers of the telecommunications network 30 also in the form of voice messages through the telecommunications network 30. By voice messages is meant sound sequences comprising recordings of human voice obtained by recording the voice of a person or by text-to-speech. By written messages is meant data adapted to be displayed for example on a screen 15 in the form of alphanumeric characters or to be stored in a storage means of a telecommunication terminal, for example a telephone handset 10. These written messages are for example short SMS messages, EMS messages or MMS messages. An EMS message, an abbreviation of the English terms Enhanced Message Service, is a short message which includes sequences of images or music and can, among other things, include electronic business cards of the vCard type. An MMS message, an abbreviation of the English words Multimedia Message Service, is a short message that includes sequences of video images or music. These short messages include, for example, coordinates of other telecommunication terminals included for example in the directory of the user of the telephone handset 10 stored in the directory server 20. More particularly, the coordinates of the other telecommunication terminals are stored in the form of electronic business cards in a format that conforms to the vCard specification. The vCard specification acronym for "The Electronic Business Card" is a specification from the Versit consortium. The current version is version 3 issued in September 1998. This specification defines an electronic business card format for the exchange of data between applications or systems. The directory server 20 is accessible via the telecommunications network 30 which is for example the telephone network of the company France Télécom in which it is identified in a conventional manner by a telephone number. The directory server 20 comprises an interface means adapted to interpret DTMF (Dual Tone Modulation Frequency) commands or voice frequencies generated by the manipulation of the keys of the keyboard of a telephone terminal 10 and / or of predetermined signals for activation of the service. as proposed according to the invention. The directory server 20 communicates with the caller using, for example, voice messages. Voice messages are sent in block form in response to commands transmitted by the caller. The caller is invited by voice messages to activate the transfer by the directory server 20 of short messages comprising information contained in the directory of the subscriber stored in the directory server 20. The directory server 20 is for example a server comprising a telephone number directory associated with the telephone handset 10. This directory is for example created and modified by the user of the telephone handset 10 using example of a computer not shown in FIG. 1. The creation and / or modification are carried out during Internet type connections with the directory server 20. This directory 20 can also be constituted by the user of the telephone handset 10, with his telephone handset 10, by sending short messages to the directory server 20, the short messages comprising the coordinates which it wishes to store in the directory server 20. As a variant, the directory server 20 is a telephone information server which, during voice interrogations of the telephone handset 10, transfers to it a information in the form of short messages such as the telephone number that the telephone handset 10 wishes to reach. According to another variant, the directory server 20 is a server capable of memorizing the last telephone number of a caller, or even his identity, having tried to reach the telephone handset 10. The directory server 20 can also memorize a larger number of telephone numbers of callers who have joined or tried to reach the telephone handset 10. The telecommunications network 30 comprises means for putting a first telephone call on hold by the user of the telephone handset 10 at the latter's request, transfer of a second telephone call to the user of the telephone handset 10 when the first telephone call is put on hold and restoration of the first telephone call at the request of the user of the telephone handset 10. This type of service is for example offered by the company France Télécom under the name of signal call. The telephone handset 10 according to the invention is capable of transmitting and / or receiving short messages during a telephone call. It will be described in more detail with reference to FIG. 2. A telecommunications terminal 33 is also shown in FIG. 1. This telecommunication terminal 33 is for example a telephone handset or a videoconferencing system capable of transmitting and / or receiving short messages during telephone communication with the telephone handset 10. An SMSC server 35 is also shown in FIG. 1. This SMSC server 35 is a server capable of communicating a short message intended for the telephone handset 10. The SMSC server 35 is also capable of transferring a short message from the telephone handset 10 to another telecommunications terminal of the communication network. telecommunications 30. Short message transfers are based on the ETSI standard described in the document ETSI EN 201 912. This SMSC server 35 is also capable, in accordance with the present invention, of transferring a short message to the telephone handset 10 by via the telecommunications network 30 when the telephone handset 10 is in communication with the telecommunications terminal 33. FIG. 2 shows a schematic view of the telephone handset according to the invention. The telecommunications terminal 10 is for example a telephone handset comprising a processor 11 connected to a memory 12, a screen 15, a keyboard 16, a signal generation and / or frame detection means 14, a line interface 13 as well as 'to a loudspeaker 17 and a microphone 18. The memory 12 stores the program implementing the method according to the invention which will be described in detail later. The processor 11 executes the instructions of the program corresponding to the algorithms described later with reference to FIGS. 3, 4, 5 and 6. The processor 11 controls the line interface 13, the screen 15, the keyboard 16, the signal generation and / or frame detection means 14 and the activation of the loudspeaker 17 and microphone 18. The keyboard 16 and the screen 15 provide the man-machine interface with the user. Via the screen 15, the processor 11 displays the information associated with the user of the telephone handset 10 and received from the directory server 20 in the form of short messages, or the information received in the form of short messages from the telecommunications terminal. 33 during a telephone communication between the telephone handset 10 and the telecommunications terminal 33 or the information delivered by the SMSC server 35 during a telephone communication between the telephone handset 10 and the telecommunications terminal 33. The keyboard 16 allows the user of the telephone handset 10 to dial the telephone number of the directory server 20 according to the invention, to accept the reception of a short message from the SMSC server 35 during a telephone communication with another telecommunications terminal connected to the telecommunications network 30, to generate at least one predetermined command for activation of the transfer of a short message to another telecommunications terminal of the telecommunications network 30. The telephone handset 10 comprises a line interface 13 adapted to the telecommunications network 30. The line interface 13 comprises inter alia at least one relay controlled by the processor 11 allowing the connection or disconnection of the telecommunications terminal 10 to the telecommunications network 30, at least one transformer making it possible to isolate the telecommunications terminal 10 from the telecommunications network 30 and at least one two-wire four-wire converter circuit allowing the separation of incoming and outgoing signals. The telecommunications terminal 10 also includes a microphone 18 and a conventional speaker 17. It should be noted that the loudspeaker 17 and the microphone 18 can be deactivated by the processor 11 during the reception and / or transmission of short messages according to the invention. The telecommunication terminal 10 also comprises a means of signal generation and / or of frame detection 14. This means of signal generation and / or of frame detection 14 is for example a modem or a DSP (Digital Signal Processor). The signal generation and / or frame detection means 14 is suitable for generating short message transfer activation signals on the telecommunications network 30 such as dual-frequency signals or DTMF (Dual Tone Modulation Frequenct) signals ), data frames modulated according to a modulation of FSK (Frequency Shift Keying) type at 1200 bits per second. The signal generation and / or frame detection means 14 is also capable of detecting, decoding dual-frequency signals, DTMF signals and signals conforming to the rules defined in the transmission protocol V23 standardized at ETSI (European Telecommunication Standards Institute) and described in document ETSI EN 300 659-2 entitled Public Switched Telephone Network (PSTN): Subscriber Une protocol over the local loop for display and related services- Part 2: Off-hook data transmission and document ETSI EN 300 659-3 entitled Access and Terminais (AT); Analogue access to the Public Switched Telephone Network (PSTN): Subscriber line protocol over the local loop for display and related services- Part 3: Data link message and parameter. The signal generation and / or frame detection means 14 is also suitable for exchanging data in accordance with the UBSl or UBS2 protocol abbreviations of the English terms User Based Solution described in the ETSI standard EN 201 912 entitled Access and Finnish (AT); Short Message Service (SMS) for PSTN / ISDN; Short Message Communication between a fixed network Short Message Terminal Equipment and a Short Message Service Center. The UBS1 and UBS2 protocols provide a reliable service guaranteeing the correct transfer of short messages such as SMS messages and allow the user who sent the message to check whether it has been correctly received by the recipient of the message. The UBSl protocol has the advantage of being a protocol compatible with the service for providing SMS messages from the GSM (Global System for Mobile communication) network. The UBS2 protocol has the advantage of being particularly suitable for a fixed wired telecommunications network such as the PSTN or ISDN network. The processor 11 and the signal generation and / or frame detection means 14 implement the three ISO / OSI layers for the transmission of data via the telecommunications network 30. These layers are the physical layer SM physical layer, the data layer SM Data Link Layer and the SM Transfer layer. The processor 11 and the signal generation and / or frame detection means 14 implement the algorithms as described in appendices A and B of the ETSI standard EN 201 912 entitled Access and Terminais (AT); Short Message Service (SMS) for PSTN / ISDN; Short Message Communication between a fixed network Short Message Terminal Equipment and a Short Message Service Center. It should be noted, however, that according to the invention, only the parts of the sequence diagrams of appendices A and B comprised between the markers "Connection Manager initiates connection" and "Connection Manager deletes connection" are performed by the processor 11 and the generation means. of signals and / or of frame detection 14. In fact, contrary to this standard, the invention aims to make the transfer of short messages achievable during telephone communication. Fig. 3 shows the short message transmission algorithm performed by the telephone handset 10 according to a first embodiment of the invention. When the application is launched, the processor 11 reads from the memory 12, the program instructions corresponding to steps E300 to E308 of FIG. 3 and loads them into RAM, not shown, to execute them. This algorithm is performed each time the user of the telephone handset 10 is in communication with another telecommunications terminal via the telecommunications network 30. In step E300, the processor 11 of the telephone handset 10 detects a communication telephone in progress. The processor 11 then goes to step E301. In step E301, the processor 11 checks whether during the telephone communication at least one command predetermined by the user of the telephone handset 10 is carried out via the man machine interface of the telephone handset 10 for the transfer of 'a short message. This command is, for example and without limitation, pressing a predetermined key on the keyboard 16 or pressing a predetermined combination of keys on the keyboard 16. This command can also be a voice command interpreted by the telephone handset 10. The short message is for example an EMS type message comprising the user's electronic business card. Of course, the message can also be an SMS message or an MMS message. If no predetermined command is detected, the processor 11 goes to step E302 which consists in checking whether the current communication is interrupted or not. This is done for example by detecting the hanging up of the telephone handset 10 by the user or the detection by the signal generation and / or frame detection means 14 of a busy tone generated by the telecommunications network 30. If so, the processor 11 completes the algorithm of FIG. 3 and waits for a new telephone call to start again. If the communication is not interrupted, the processor 11 repeats the loop consisting of steps E301 and E302 until a predetermined command from the user of the telephone handset 10 is not detected. On detection of such a predetermined command, the processor 11 goes to the next step E303. At this step E303, the processor 11 generates a command intended for the signal generation and / or frame detection means 14 so that the latter generates at least one signal on the telecommunication network 30 to activate the transfer of the or each short message between the telephone handset 10 and another telecommunication terminal of the telecommunication network 30. It is nevertheless to be noted that the other telecommunication terminal can also be a telecommunication terminal connected to a wireless telecommunication network such as a mobile telephone in a GSM network. This signal is for example a dual-frequency signal which is transmitted for a predetermined time, for example of the order of a hundred milliseconds. This signal must be such that it can easily be discriminated against by voice by the telecommunications terminal receiving this signal. This signal can also alternatively be a combination of DTMF voice frequency signals. This operation carried out, the processor 11 controls in step E304 the loudspeaker 17 so that the latter does not reproduce the signals exchanged on the telecommunication network 30 and thus does not disturb the user of the telephone handset 10 This operation carried out, the processor 11 activates in step E305 a time delay. This delay allows information transmitted according to the FSK modulation to be transmitted and received correctly. This minimum delay is for example of the order of a hundred milliseconds. The processor 11 then waits at step E306 for the end of this time delay. At the end of this time delay, the processor 11 transfers in step E307 the short message to be transmitted by means of signal generation and / or frame detection 14 so that it sends them via the interface line 13 on the telecommunications network 30 in accordance with the UBS1 or UBS2 protocol mentioned above. It should be noted that several short messages can be transmitted at this stage. It is indeed possible to send several short messages one after the other. As a variant, the processor 11 waits at step E306 for a message confirming the signal generated in step E303. This confirmation message is generated by the telecommunications terminal with which it is in communication. According to this variant, if no confirmation message is received, the processor 11 goes to step E308 without sending the short message (s). After the transfer, the processor 11 reactivates in step E308 the loudspeaker 17, or even the microphone 18 of the telephone handset 10 so that the user of the telephone handset 10 can continue the telephone communication with the other telecommunications terminal. Once this has been done, the processor 11 returns to step E301 and repeats the loop made up of steps E301 and E302 previously described. It should be noted that this embodiment is more particularly suitable for the transfer of small information. During a telephone call, the short message transfer does little to disturb the communication between the two users, so that they can freely resume their conversation without having the impression that their speakers have been deactivated. When, for example, the telephone handset 10 is in communication with the telecommunications terminal 33, the information transferred is in the majority of cases the electronic business card of the user of the telephone handset 10. The time necessary for the transmission of this card is relatively short. Of course other types of information can be transmitted in the short message (s). According to a particular mode, the loudspeaker 17 of the telephone handset 10 remains activated during steps E305 to E306 and when the timing of step E306 is over, the processor 11 waits for a period of silence in the users' conversation to deactivate the loudspeaker 17 and order the transfer of the short message during this time. It should also be noted that the message can be broken down into several messages containing less information, transmitted during periods of silence in the conversation. When this algorithm is performed by the directory server 20, the directory server 20 communicates with the caller using voice messages. Voice messages are sent in block form in response to commands transmitted by the caller. Each voice message block is prerecorded and memorized with an appropriate addressing in a storage means of the voice server 20. In general, a welcome voice message is emitted during the connection with the directory server 20 by the telecommunication terminal 10, then one or more specific messages are emitted each time a key of the telecommunication terminal 10 is actuated thus forming a command to the directory server 20. The directory server 20 transfers to the telecommunication terminal 10 voice messages to select a specific function and processes the response to these messages. The response to these messages is for example a DTMF type signal to activate the transfer of a short message from the answering server 20 to the telephone handset 10. In this case, the predetermined command of the user of the telephone handset 10 for the transfer of a short message detected in step E301 is the DTMF signal for responding to voice messages transmitted by the answering server 20 via the telecommunications network 30. The short message comprises, for example, an electronic business card of a subscriber included in the directory of the user of the telephone handset 10 and stored in the directory server 20. FIG. 4 represents the algorithm for receiving short messages carried out by a telephone telecommunications terminal according to the first embodiment of the invention. When the application is launched, the processor of the telecommunications terminal reads from its memory, the program instructions corresponding to steps E400 to E406 in FIG. 4 and loads them into RAM, not shown, to execute them. This algorithm is for example carried out at the telecommunications terminal 33, the telephone handset 10 or the answering server 20 each time the latter is in communication with another telecommunications terminal via the telecommunications network 30. A step E400, the processor of the telecommunication terminal has detected a telephone communication. The processor then goes to step E401. In step E401, the processor checks whether during the telephone communication at least one predetermined signal is received from the telecommunications network 30 for the transfer of a short message. This predetermined signal is for example a dual-frequency signal such as that generated in step E303 of the algorithm previously described with reference to FIG. 3. If no predetermined signal is detected, the processor goes to step E402 which consists in checking whether the current communication is interrupted or not. This is done for example by detecting the hanging up of the telephone handset 10 by the user or a busy tone generated by the telecommunications network 30. If so, the processor ends the algorithm of FIG. 4 and waits for a new telephone call to start the algorithm again. If the communication is not interrupted, the processor repeats the loop constituted by steps E401 and E402 until a predetermined signal received from the telecommunications network 30 is not detected. If a predetermined message is detected, the processor activates in step E403 its identical modem by means of signal generation and / or frame detection 14 of the telephone handset 10 previously described. This operation being carried out, the processor deactivates in step E404 the loudspeaker of the telecommunications terminal if it is a telephone handset. On receipt of the short message in the next step E405, the processor stores the content of the short message in the memory of the telecommunications terminal and / or transfers the content of the message to the screen of the telecommunications terminal if it is a telephone handset so that the user can read it. It should be noted that several short messages can be received at this stage. As we mentioned earlier, it is indeed possible to send several short messages one after the other. It should be noted that the data transfer is carried out in accordance with the UBS1 or UBS2 protocol previously mentioned. Once the transfer has been made, the processor reactivates in step E406 the loudspeaker of the telecommunication terminal if the latter has been previously deactivated so that the telephone communication can continue. Once this has been done, the processor returns to step E401 and repeats the steps E401 and E402 previously described. Fig. 5 shows the algorithm for receiving short messages performed by the telephone handset 10 according to a second embodiment of the invention. According to this embodiment, several signals are exchanged on the telecommunications network 30 to activate the transfer of the or each short message between the telephone handset 10 and the telecommunications terminal. These signals are signals conforming to the rules defined in the N23 transmission protocol standardized at ETSI (European Telecommunications Standards Institute) and described in document ETSI EN 300 659-2 entitled Public Switched Telephone Network (PSTN): Subscriber Une protocol over the local loop for display and related services- Part 2: Off-hook data transmission and the document ETSI EN 300 659-3 entitled Access and Terminais (AT); Analogue access to the Public Switched Telephone Network (PSTN): Subscriber a protocol over the local loop for display and related services- Part 3: Data link message and parameter. According to this embodiment, the telephone handset 10 is in communication with the directory server 20. The directory server 20 transfers voice messages to the telecommunication terminal 10 to select a specific function and processes the response to these messages. The response to these messages is for example a DTMF type signal to activate the transfer of a short message from the answering server 20 to the telecommunications terminal 10. The directory server 20 is for example a server comprising a directory of associated telephone numbers to the telephone handset 10, a telephone information server which, during voice interrogations of the telephone handset 10, transfers information in the form of short messages such as the telephone number that the communication device 10 wishes to reach. The directory server 20 invites, in the form of voice messages, the user of the telephone handset 10 to select the coordinates of one or more subscribers to the telecommunications network 30 that he wishes to receive in the form of a short message. These contact details are in a preferred mode of electronic business cards of the vCard type. These electronic business cards include, among other things, the subscriber's contact details, the subscriber's first and last name, address, or even their email address. Of course, these contact details can be transmitted in a format other than that of electronic business cards. When the application is launched, the processor 11 reads from the memory 12 of the telephone handset 10, the program instructions corresponding to the steps E500 to E509 in Fig. 5 and loads them into RAM, not shown, to execute them. In step E500, the processor 11 of the telephone handset 10 detects a telephone call in progress. The processor 11 then goes to step E501. In step E501, the processor 11 checks whether during the telephone communication at least one predetermined command from the user of the telephone handset 10 is carried out via the man machine interface of the telephone handset 10. This command is for example and without limitation, pressing a predetermined key on the keyboard 16 or pressing a combination of keys on the keyboard 16. If no predetermined command is detected, the processor 11 goes to step E502 which consists in checking whether the current communication is interrupted or not. This is done for example by detecting the hanging up of the telephone handset 10 by the user or the detection by the signal generation and / or frame detection means 14 of a busy tone generated by the telecommunications network 30. If so, the processor 11 completes the algorithm of FIG. 5 and waits for a new telephone call to start the algorithm again. If the communication is not interrupted, the processor 11 repeats the loop consisting of steps E501 and E502 until a predetermined command from the user of the telephone handset 10 is not detected. On detection of such a predetermined command, the processor 11 goes to the next step E503. At this step E503, the processor 11 generates a command intended for the signal generation and / or frame detection means 14 so that the latter generates at least one signal on the telecommunications network 30 to activate the transfer of or each short message between the telephone handset 10 and the answering server 20. This signal is a combination of DTMF signals. This signal is representative of a request for reception by the user of the telephone handset 10 of at least one short message generated by the directory server 20 with which the telephone handset is in communication. Once this operation has been completed, the processor 11 goes to step E504 and checks whether during the telephone communication at least one dual-frequency signal denoted SAT is received in confirmation of the DTMF signal previously sent from the communication network. telecommunication 30 for the transfer of a short message. This signal is for example a dual-frequency signal (2130Hz and 2750 Hz) which is transmitted over a TSAT time of between 80 and 85 milliseconds (ms). This S AT signal conforms to the signal described in the document ETSI EN 300 659-2. As long as a SAT signal is not received, the processor 11 repeats the loop constituted by step E504. On receipt of a SAT signal, the processor 11 then goes to step E505, deactivates the loudspeaker 17 of the telephone handset 10. This operation carried out, the processor 11 generates in the next step E506 a command intended for the signal generation and / or frame detection means 14 so that the latter transfers a DTMF signal, more precisely a DTMF signal D over the telecommunications network 30 via the line interface 13. This DTMF signal D is an acknowledgment signal to the previously received SAT signal. This message D is also representative of the ability of the signal generation and / or frame detection means 14 to decode N23 type frames. The processor 100 then goes to step E507. At this stage, the signal generation and / or frame detection means 14 receives, decodes and transfers to the processor 11 at least one V23 type data frame conforming to the rules defined in the transmission protocol standardized at ETSI ( European Telecommunications Standards Institute) and described in the document ETSI EN 300 659-2 and in the document ETSI EN 300 659-3. The information included in the or each data frame is for example the telephone number of the directory server 20 as well as an identifier of a predetermined telephone directory in the telephone handset 10. Indeed, several users of the telephone handset 10 can each have of a telephone directory stored in memory 12 of the telephone handset 10 and identifying with the answering server 12. The answering server 12 in the or each data frame inserts an identifier corresponding to the directory of the user who has previously identified himself. This operation carried out, the processor 11 goes to the next step E508. At this stage, the short message is received, decoded and transferred to the processor 11 by the signal generation and / or frame detection means 14. The processor 11 stores the content of the short message in the memory 12 of the handset telephone 10 and more precisely in the directory corresponding to the identifier previously received in the frame N23 in step E507. Alternatively, the processor 11 transfers the content of the message to the screen 15 of the telecommunications terminal 10 so that the user can read it. It should be noted that several short messages can be received at this stage. As we mentioned earlier, it is indeed possible to send several short messages one after the other. It should be noted that the data transfer is carried out in accordance with the UBSl or UBS2 protocol previously mentioned. After the transfer, the processor reactivates in step E509 the loudspeaker 17 of the telephone handset 10 so that the telephone communication can continue. This operation carried out, the processor 11 returns to step E501 and repeats the steps E501 and E502 previously described. Fig. 6 shows the algorithm for receiving short messages from an SMSC server 35 and carried out by the telephone handset 10 during telephone communication with another telecommunication device. According to this other exemplary embodiment, the telephone handset 10 is in telephone communication with the telecommunications terminal 33. During this communication and according to the invention, the user of the telephone handset 10 generates a predetermined command by means of the human machine interface and the telephone handset 10 generates a signal on the telecommunications network 30 to activate the transfer of the or each short message between the telephone handset 10 and another telecommunications terminal, in this case the SMSC server 35. At launch of the application, the processor 11 reads from the memory 12, the program instructions corresponding to steps E600 to E613 of FIG. 6 and loads them into RAM, not shown, to execute them. In step E600, the processor 11 of the telephone handset 10 detects a telephone call in progress. The processor 11 then goes to step E601. In step E601, the processor 11 checks whether during the telephone communication a predetermined signal is detected by the signal generation and / or frame detection means 14. This signal is for example a dual-frequency signal (2130Hz and 2750 Hz) which is transmitted over a TSAT time of between 80 and 85 milliseconds (ms). This SAT signal conforms to the signal described in document ETSI EN 300 659-2. If no SAT signal is received, the processor 11 goes to step E602 which consists in checking whether the current communication is interrupted or not. This is done for example by detecting the hanging up of the telephone handset 10 by the user or the detection by the signal generation and / or frame detection means 14 of a busy tone generated by the telecommunications network 30. If so, the processor 11 completes the algorithm of FIG. 6 and waits for a new telephone call to start the algorithm again. On receipt of a SAT signal, the processor 11 then goes to step E603 and deactivates the loudspeaker 17 of the telephone handset 10. It should be noted here that the SAT signal does not come from the telecommunications terminal 33 with which the telephone handset 10 is in communication. This SAT signal is generated by one of the elements of the telecommunications network 30 not shown in the accompanying drawings. This SAT signal is generated by the telecommunications network 30 following an attempt to call the SMSC server 35 to transmit a short message to the telephone handset 10. This operation performed, the processor 11 generates in the next step E604 a command to the signal generation and / or frame detection means 14 so that the latter transfers a DTMF signal, more precisely a DTMF signal D on the telecommunications network 30 via the line interface 13. This DTMF signal D is an acknowledgment signal to the previously received SAT signal. This message D is also representative of the ability of the signal generation and / or frame detection means 14 to decode V23 type frames. The processor 100 then goes to step E605. At this stage, the signal generation and / or frame detection means 14 receives, decodes and transfers to the processor 11 at least one V23 type data frame conforming to the rules defined in the transmission protocol standardized at ETSI ( European

Telecommunication Standards Institute) and described in document ETSI EN 300 659-2 and in document ETSI EN 300 659-3. More specifically, the data frame V23 includes the identifier of the SMSC server 35 which generated the call. It should be noted that, as a variant, the processor 11 reactivates at this stage the loudspeaker 17 of the telephone handset 10 so as to disturb the telephone communication as little as possible with the telecommunications terminal 33. In the next step E606, the processor 11 analyzes the content of this frame and determines whether it is identical to the identifier, more precisely the telephone number of the SMSC server 35 on which it depends. This number is stored in the memory 12 of the telephone handset 10. If the comparison is negative, the signal SAT and the frame N23 are not representative of a short message transfer. The processor then goes to step E607. At this stage, the processor 11 processes the information of the frame N23 in accordance with the documents ETSI EN 300 659-2 and ETSI EN 300 659-3. If the content of the frame N23 is identical to the identifier of the SMSC server 35 on which the telephone handset 10 depends, the processor proceeds to the next step E608. In step E608, the processor 11 generates a message intended for the screen 15 of the telephone handset 10. This message is an invitation message to press a predetermined key on the keyboard 16 to accept or not the reception of a short message from an SMSC 35 server during telephone communication. Once this operation has been carried out, the processor 11 then goes to the next step E609 which consists in determining the choice that the user of the telephone handset 10 has made following the information message generated in the previous step. If the user accepts the reception of the short message during the communication by dialing, for example, on a command R2 via the keyboard of the telephone handset 10, the processor goes to step E611. If, on the other hand, the user has not accepted the reception of the short message, the processor 11 goes to step E610, reactivates the loudspeaker 17 of the telephone handset 10 and returns to step E601 previously described. The user of the telephone handset 10 refuses for example the reception of the short message by not composing a command for a predetermined time following the invitation made in step E608. It should be noted here that during the test E609, at least one predetermined command from the user of the telephone handset 10 is detected during the telephone call via the man-machine interface for activate the transfer of or each short message between the telephone handset 10 and the SMSC server 35. In step E611, the user having accepted the short message, voice frequency signals representative of the command R2 are transmitted over the network 30 and the SMSC server 35, while waiting for communication, which is put into communication with the telephone handset 10 by the telecommunications network 30. The communication terminal 33 is in turn put on hold by the telecommunications network 30 It should be noted that this standby is relatively short and does not disturb or slightly disturb the communication between the telephone handset 10 and the telecommunications terminal 33. During this period, the short message is received, decoded and transferred to the processor 11 by the signal generation and / or frame detection means 14. The processor 11 in step E612 stores the content of the short message d ans the memory 12 of the telephone handset 10 and / or transfers the content of the message to the screen 15 of the telecommunication terminal 10 so that the user can read it. It should be noted that the data transfer is carried out in accordance with the UBSl or UBS2 protocol previously mentioned. After the transfer, the processor 11 then goes to step E613. At this stage, the processor 11 controls the signal generation and / or frame detection means 14 so that the latter transfers at least one DTMF signal to the telecommunications network 30. These signals are for example representative of a command R2 carried out by means of the keyboard 15 of the telephone handset 10. On reception of this signal, the telecommunications network 30 interrupts the communication between the telephone handset 10 and the SMSC server 35 and reestablishes the communication between the telephone handset 10 and the telecommunications terminal 33. The processor 11 then goes to step E610, reactivates the loudspeaker 17 of the telephone handset 10 so that the telephone communication can continue. This operation carried out, the processor 11 returns to step E601 and repeats the steps E601 and E602 previously described. Of course, the present invention is not limited to the embodiments described here, but encompasses, quite the contrary, any variant within the reach of ordinary skill in the art.

Claims

1) Method for activating a transfer of at least one short message between a first telecommunications terminal (11) and a second telecommunications terminal (20, 33) via a telecommunications network (30) , the first telecommunication terminal (11) comprising a man-machine interface and being in telephone communication with the second telecommunication terminal (20, 33), characterized in that the method comprises the steps of: - detection (E301, E501) at during the telephone communication of at least one predetermined command from the user of the first telecommunications terminal via the man-machine interface, - generation (E303, E503) of at least one signal on the telecommunications network (30) to activate the transfer of the or each short message between the first telecommunications terminal and the second telecommunications terminal.

2) Method according to claim 1, characterized in that the or each short message is a short message belonging to the group of short messages of SMS or EMS or MMS type.

3) Method according to claim 2, characterized in that the or each short message comprises at least one electronic business card.

4) Method according to any one of claims 1 to 3, characterized in that the signal generated is a dual-frequency signal.

5) Method according to claim 4, characterized in that the method further comprises a step of transfer by the first telecommunications terminal (11) of or each short message, the short message being transmitted according to a predetermined protocol and according to a modulation FSK type.

6) Method according to claim 4, characterized in that the or each short message is transferred a predetermined time (E305, E306) after the signal generated. 7) Method according to any one of claims 1 to 3, characterized in that the second telecommunications terminal is a server (20) and the signal generated is a DTMF voice frequency signal. 8) Method according to claim 7, characterized in that following the generation of the signal on the telecommunications network, the method comprises the steps of: detection (E504) of a dual-frequency signal generated by the server, generation (E506 ) a predetermined voice frequency signal in response to the dual-frequency signal, - reception (E507) of at least one N23 data frame.

9) Method according to claim 8, characterized in that the method comprises the steps of: determining at least one directory identifier from information included in the frame N23, reception (E508) of or each short message, the short message being transmitted according to a predetermined protocol and according to an FSK type modulation, storage of the or each short message in the directory associated with the determined identifier.

10) Method between a first telecommunication terminal and a second telecommunication terminal (20, 35) via a telecommunication network (30), the first telecommunication terminal (11) comprising a man-machine interface and being in telephone communication with a third telecommunications terminal (33), characterized in that the method comprises the steps of: - detection (E609) during the telephone communication between the first and the third telecommunications terminals of at least one predetermined command of the user of the first telecommunication terminal via the man-machine interface of the first telecommunication terminal, - generation (E611) by the first telecommunication terminal of at least one signal on the telecommunication network (30) to activate the transfer of or each message runs between the first telecommunications terminal and the second telecommunications terminal.

11) Method according to claim 10, characterized in that the or each short message is a short message belonging to the group of short messages of SMS or EMS or MMS type.

12) Method according to claim 11, characterized in that the or each short message comprises at least one electronic business card.

13) Method according to any one of claims 10 to 12, characterized in that the second telecommunications terminal is a short message server (35) and the signal generated is a DTMF voice frequency signal. 14) Method according to any one of claims 10 to 13, characterized in that prior to the step of detecting at least one predetermined command, the method comprises the steps of: - detection (E601) of a bi signal -frequency received from the telecommunications network, - generation (E604) of a predetermined voice frequency signal in response to the bi-frequency signal, - reception (E605) of at least one N23 data frame, - determination (E606) if information contained in the N23 data frame is representative of a short message server, - generation (E608) of an information message to the user of the telecommunications terminal if the information contained in the N23 data frame comprises an identifier of a short message server.

15) Method according to claim 14, characterized in that the method further comprises a step of transfer by the server of short messages of or each short message, the or each short message being transmitted according to a predetermined protocol and according to a modulation of type FSK. 16) Method according to claim 15, characterized in that following the reception of the or each short message, the method comprises a step of generation (E613) of at least one other DTMF voice frequency signal to restore the telephone communication between the first telecommunications terminal and the third telecommunications terminal.

17) Device for activating a transfer of at least one short message between a first telecommunications terminal (11) and a second telecommunications terminal (20, 33) via a telecommunications network (30) , the first telecommunication terminal (11) comprising a man-machine interface and being in telephone communication with the second telecommunication terminal (20, 33), characterized in that the device comprises: - detection means (11, 16) at the during the telephone communication of at least one predetermined command from the user of the first telecommunications terminal via the man-machine interface, - means for generating (11, 14, 15) of at least one signal on the telecommunication network (30) to activate the transfer of the or each short message between the first telecommunication terminal and the second telecommunication terminal. 18) Device for activating a transfer of at least one short message between a first telecommunications terminal (11) and a second telecommunications terminal (20, 35) via a telecommunications network (30) , the first telecommunication terminal (11) comprising a man-machine interface and being in telephone communication with a third telecommunication terminal (33), characterized in that the device comprises: - detection means (11, 16) during telephone communication between the first and third telecommunication terminals of at least one predetermined command from the user of the first telecommunication terminal via the man machine interface of the first telecommunication terminal, - generation means ( 11, 14, 15) by the first telecommunication terminal of at least one signal on the telecommunication network (30) to activate the transfer of the or of each short message between the first telecommunications terminal and the second telecommunications terminal. 19) Method for receiving at least one short message between two telecommunication terminals via a telecommunication network, a telephone communication being established between the two telecommunication terminals, characterized in that the method comprises the steps, carried out by one of the telecommunications terminals, of: - detection (E401) during the telephone communication of at least one predetermined signal originating from the other telephone handset, - activation (E403) of a signal generation means and / or detection of frames for the reception of a short message during the telephone call, - reception (E405) of the short message in accordance with a predetermined protocol, - processing of the short message received. 20) Method according to claim 19, characterized in that the predetermined signal is a dual-frequency signal, the predetermined protocol is a UBS protocol and the processing of the short message consists in storing it.

21) Method according to claim 19 or 20, characterized in that the method comprises the step of deactivation (E404, E406) of the loudspeaker of the telecommunication terminal when the short message is received.

22) Computer program stored on an information medium, said program comprising instructions making it possible to implement the method according to any one of claims 1 to 9, when it is loaded and executed by a computer system.

23) A computer program stored on an information medium, said program comprising instructions making it possible to implement the method according to any one of claims 10 to 16, when it is loaded and executed by a computer system.

24) Device for receiving at least one short message between two telecommunications terminals via a telecommunications network, a telephone communication being established between the two telecommunications terminals, characterized in that the device comprises: - means of detection during the telephone communication of at least one predetermined signal originating from the other telephone handset, - means (11 ) activation of a signal generation and / or frame detection means for the reception of a short message during the telephone call. means for receiving the short message in accordance with a predetermined protocol, - means for processing the short message received.