WO2015092238A1

WO2015092238A1 - Method and device for establishing enhanced communication

Info

Publication number: WO2015092238A1
Application number: PCT/FR2014/053325
Authority: WO
Inventors: Romain Carbou
Original assignee: Orange
Priority date: 2013-12-20
Filing date: 2014-12-12
Publication date: 2015-06-25
Also published as: FR3015828A1

Abstract

The invention relates to a method for establishing enhanced communication. A first terminal connected to a first communication network sends (E1) a communication request to a second terminal connected to a second communication network. When the first terminal is capable (E2) of establishing enhanced communication via the first communication network, the method obtains (E4) a temporary identity available on the first communication network, and stores (E5) an association of said obtained temporary identity with the second terminal. A communication gateway registers (E6) on the first communication network using said obtained temporary identity. The communication request from the first terminal is then rerouted (E7) toward the communication gateway. Communication is established (E9) between the first terminal and the second terminal via the communication gateway.

Description

METHOD AND DEVICE FOR ESTABLISHING AN ENRICHED COMMUNICATION

The invention lies in the field of telecommunication networks. It relates to a device and a method for establishing an enriched communication.

The communication standard RCS (for Rich Communication Suite in English) or RCSe (for Rich Communication Suite Enhanced in English) allows a user of a compatible RCS or RCSe terminal to establish an enriched communication with another user who also has a compatible RCS or RCSe terminal.

Thus, a voice communication can notably be enriched by the addition of a video stream to the communication, the sharing of video, audio, text files, etc.

During an enriched communication between two compatible RCS or RCSe terminals, the voice stream of the enriched communication is transmitted via a circuit-type mobile communication network, for example of the EDGE, 2G, 3G type ... The other flows of the communication enriched, said data streams (for data in English), comprising the data type video, text, image, are transmitted via a mobile data communication network, based for example on an IMS type architecture (for Internet Multimedia Subsystem in English).

Enriched communication can also be implemented on an LTE (Long Term Evolution) type Internet Protocol (LTE) -based mobile communication network dedicated to data communication. With the deployment of the VoLTE (Voice over LTE) standard, the voice stream of the enhanced communication can then be transmitted between two terminals connected to the LTE mobile communication network according to the VoLTE standard. The transmission of the data stream of the communication will be carried out conventionally according to the IP protocol.

Communications services implemented on a mobile communication network, such as RCS or RCSe services, can not be implemented during a communication between a terminal connected to a mobile communication network and a connected terminal. to a fixed communication network. The term "fixed communication network" refers to a communication network of the RTC (Public Switched Telephone Network) or PSTN (Public Switched Telephone Network) type.

The service platforms implementing the mobile communications services are not adapted to serve a terminal connected to a fixed communication network. Thus, when a terminal connected to a mobile communication network and supporting the functions RCS or RCSe transmits a communication request to a terminal connected to a fixed communication network, the communication between these two terminals can only be established in mode voice via the mobile circuit communication network and the fixed communication network. The communication can not be an enriched communication, even if the terminal connected to the fixed communication network supports the RCS or RCSe features.

One solution to this problem would be to interconnect service platforms of the fixed and mobile communication networks in order to provide a service of RCS or RCSe type in the same way as during an enriched communication between two terminals connected to a network of networks. mobile communication. But this solution is expensive to implement because it requires in particular to duplicate the service platforms.

In addition, restoration of an enriched communication is implemented using the SIP (Session Initiation Protocol). The routing of SIP sessions between a mobile data communication network and a fixed data communication network is complex to implement. In addition, such sessions are likely to experience quality degradations due to different network security policies or different service policies between the mobile data communication network and the fixed data communication network.

One of the aims of the invention is to provide improvements over the state of the art. It proposes for this purpose a method of establishing an enriched communication initiated by a first terminal connected to a first communication network, said first terminal having sent a communication request to a second terminal connected to a second network of communication. When the first terminal is able to establish an enriched communication via the first communication network, the method comprises:

a step of obtaining a temporary identity available on the first communication network,

a step of storing an association of said temporary identity obtained at the second terminal,

a step of registering a communication gateway on the first communication network with said temporary identity obtained,

following the redirection of the communication request from the first terminal to the communication gateway, a step of establishing a communication between the first terminal and the second terminal via the communication gateway.

The invention thus makes it possible to establish a communication between a terminal connected to a first communication network and a terminal connected to a second communication network. The first communication network corresponds for example to a mobile communication network and the second communication network corresponds to a fixed communication network.

The use of a communication gateway registered on the first communication network with a temporary identity enables the first terminal to communicate with the second terminal via the first communication network. The communication thus established can be easily enriched by the service platforms of the first communication network which then provide a service to the second terminal via the communication gateway. The service logic of the first communication network can thus be used between the first terminal and the communication gateway without modifying the infrastructures of the first communication network or the second communication network. The invention thus enables the second terminal to benefit from a service offered by the first communication network. Identity means a public identity assigned by an operator of a communication network to a subscriber with this operator and associated with the SIM (Subscriber Identity Module) of a terminal. The public identity allows a terminal registered on a communication network with this identity to be joined by other terminals.

The identity obtained is temporary in the sense that it does not correspond to a public identity permanently assigned to a terminal. Here, the identity obtained is temporarily associated with the second terminal, for example for the duration of the communication. The identity obtained associated with the second terminal can also be associated for a longer duration, for example for the nominal duration of a record of the gateway on the first communication network. The various modes or features of realization mentioned hereafter can be added independently or in combination with each other, to the steps of the method of establishing an enriched communication defined above.

According to a particular embodiment of the invention, prior to the step of obtaining a temporary identity, the method comprises a verification step that the second terminal is able to establish an enriched communication, the step of obtaining a temporary identity being implemented in the case of a positive verification.

According to this particular embodiment of the invention, the method verifies that the second terminal is able to receive and transmit data of an enriched communication. Advantageously, the steps of the method of establishing a communication according to the invention are implemented only if the second terminal is also able to establish an enriched communication. This particular embodiment of the invention makes it possible to optimize the resources of the communication gateway and the first communication network.

According to another particular embodiment of the invention, following the end of the communication established between the first terminal and the second terminal, the communication gateway disconnects from the first communication network for said temporary identity.

According to this particular embodiment of the invention, the resources of the first communication network and the communication gateway are thus used only during the duration of the communication established between the first terminal and the second terminal.

The temporary identity is no longer used to register the second terminal on the first communication network, the temporary identity is thus free to be used for establishing an enriched communication between other terminals.

According to another particular embodiment of the invention, the communication request from the first terminal is transmitted via a third communication network supporting communications in circuit mode.

According to this particular embodiment of the invention, the invention is advantageously implemented in the case where the first terminal is also connected to a third communication network supporting circuit mode communications (EDGE, 2G, 3G type network). , ...). This particular embodiment is advantageous in the case where the first terminal is not compatible with the VoLTE standard or is not under cover of an LTE mobile communication network. According to this particular embodiment of the invention, a flow of voice data of the communication is transmitted via the third communication network supporting communications in circuit mode and via the second communication network. The other data streams of the communication (video, text, etc.) are transmitted via the first communication network and via the second communication network. Thus, according to this particular embodiment of the invention, the quality of voice communication is then guaranteed because the voice data stream is transmitted in circuit mode via the third communication network.

According to another particular embodiment of the invention, the temporary identity is a mobile phone number selected from a group of mobile phone numbers assigned to an operator of the second communication network.

According to this particular embodiment of the invention, the operator of the second communication network has a group of mobile telephone numbers dedicated to the implementation of the invention. Thus, upon receiving a communication request from the first terminal, an interconnection gateway between the first communication network and the second communication network selects a temporary identity available on the first communication network from the group of mobile phone numbers of the operator of the second communication network.

According to another particular embodiment of the invention, the temporary identity on the first communication network is an identity of a third terminal associated with the second terminal. This particular embodiment of the invention is advantageous when the user of the second terminal also has a terminal having an identity on the first communication network. Thus, the available temporary identities of the mobile phone number group of the operator of the second communication network remain available for other terminals.

According to another particular embodiment of the invention, the third terminal being registered as a primary terminal associated with the temporary identity, during the step of recording the communication gateway on the first communication network with said temporary identity, the communication gateway registers as a secondary terminal associated with the temporary identity.

This particular embodiment of the invention is implemented in the case where the first communication network supports the multi-terminal functionality that allows multiple terminals to register on the first communication network with the same public identity. For a terminal supporting the SIP protocol, a primary terminal corresponds for example to a terminal having a high priority. According to the SIP protocol, this priority is identified by the value of a parameter q associated with the terminal. The parameter q can be assigned a value between 0.0 and 1 .0, the value 1 .0 corresponding to the highest priority. Thus, a primary terminal may be assigned a priority q equal to 1 .0 and a secondary terminal may be assigned a priority q equal to 0.0.

This particular embodiment of the invention thus makes it possible to avoid the deregistration of the third terminal of the first communication network during the recording of the communication gateway. In addition, when the communication between the first terminal and the second terminal is established via the communication gateway registered with the mobile phone number of the third terminal, the third terminal can still receive and transmit communications independently via the first communication network.

The invention also relates to a device for establishing an enriched communication initiated by the sending of a communication request by a first terminal connected to a first communication network, to a second terminal connected to a second network. Communication. The device comprises the following means activated when the first terminal is able to establish an enriched communication via the first communication network:

means for obtaining a temporary identity available on the first communication network,

means for storing an association of said temporary identity obtained at the second terminal,

means for registering a communication gateway on the first communication network with said temporary identity obtained,

means for establishing a communication between the first terminal and the second terminal via the communication gateway, said setting means being activated following the redirection of the communication request from the first terminal to the communication gateway .

The invention also relates to a gateway comprising a device as described above.

In a particular embodiment of the invention, the various steps of the method of establishing an enriched communication are implemented by instructions of computer programs.

Accordingly, the invention also relates to computer programs on an information carrier, these programs being capable of being implemented respectively in a terminal or more generally in a computer, these programs respectively comprising instructions adapted to the implementation of the various steps of the method of establishing an enriched communication which has just been described.

These programs can use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in any other form desirable shape.

The invention also relates to a computer-readable information medium, comprising instructions of a computer program as mentioned above.

The information carrier may be any entity or device capable of storing the program. For example, the medium may comprise storage means, such as a ROM, for example a CD ROM or a microelectronic circuit ROM, or a magnetic or electronic recording means, for example a USB key or a hard disk .

On the other hand, the information medium may be a transmissible medium such as an electrical or optical signal, which may be conveyed via an electrical or optical cable, by radio or by other means. The program according to the invention can be downloaded in particular on an Internet type network. Alternatively, the information carrier may be an integrated circuit in which the program is embedded, the circuit being adapted to execute or to be used in performing the method of establishing an enriched communication in question.

The advantages of the device for establishing an enhanced communication, of the gateway and of the computer program comprising instructions adapted to the implementation of the various steps of the method of establishing an enriched communication are identical to those presented in FIG. relationship with the method of establishing an enriched communication according to any one of the particular embodiments mentioned above.

List of Figures

Other advantages and characteristics of the invention will emerge more clearly on reading the following description of a particular embodiment of the invention, given as a simple illustrative and nonlimiting example, and the appended drawings, among which: :

FIG. 1 illustrates an implementation environment of the invention according to a particular embodiment of the invention,

FIG. 2 schematically illustrates steps of the method for establishing an enriched communication according to a particular embodiment of the invention,

FIG. 3 illustrates a device able to implement the method of establishing an enriched communication according to a particular embodiment of the invention.

Description of a particular embodiment of the invention

Figure 1 illustrates an implementation environment of the invention according to a particular embodiment of the invention.

A mobile terminal 15 of a user UA is connected to a mobile communication network 10. The terminal 15 can be any type of terminal for establishing communication sessions of the telephone, videophone, instant messaging, whiteboard, etc. type. ... The terminal 15 corresponds for example to a mobile phone, a smartphone (smart phone in English), a tablet, or a personal computer with connection capabilities to the mobile communication network 10.

The mobile communication network 10 is an IP data communication network, for example based on an IMS architecture. The mobile communication network 10 may be a 3G, 3G + or 4G LTE network.

The mobile communication network 10 comprises an application server 18 making it possible to access the capabilities of the terminals registered on the communication network 1 0.

The environment of FIG. 1 also comprises a fixed communication network 12. The fixed communication network 12 is for example an IP communication network whose infrastructure network is based on an IMS architecture and the access network is switched network type (PSTN).

The fixed communication network 12 comprises an application server 19 making it possible to access the capabilities of the terminals registered on the communication network 12. A terminal 13 of a user UB is connected to the fixed communication network 12. The terminal 13 can be any type of terminal for establishing communication sessions of the telephone, videophone, instant messaging, whiteboard, etc ... The terminal 13 correspond for example to a mobile phone, a smartphone (smart phone in English), a tablet, a personal computer or a television having connection capabilities to the fixed communication network 12.

When the terminal 15 sends an enriched communication request to the terminal 13, the communication established between the terminal 15 and the terminal 13 can not be enriched by the service platforms (not shown) of the mobile communication network 10.

The environment of FIG. 1 illustrates a communication gateway 16 interconnected to the mobile communication network 10 and to the fixed communication network 12. The communication gateway 16 implements, in particular, the method of establishing a communication enriched according to a mode particular embodiment of the invention for establishing an enriched communication between the terminal 15 and the terminal 13 as described in connection with Figure 2.

In the rest of the description, when reference is made to an enriched communication RCS, such enriched communication may be enriched communication according to any of the versions of the RCS standard (RCSe, RCS5, etc.).

The invention is not limited to enriched communications according to the RCS standard. The invention also applies to any type of enriched communication to be established between a terminal connected to a first communication network and a terminal connected to a second communication network.

According to a particular embodiment of the invention, in the environment illustrated in FIG. 1, the mobile communication network supports circuit mode communications. According to this particular embodiment of the invention, the mobile communication network supporting circuit mode communications is represented by the communication network 11.

In this particular embodiment of the invention, the mobile communication network 10 then corresponds to a signaling layer placed above the mobile communication network 11. It can therefore be based on the same infrastructure as the mobile communication network 10. The mobile communication network 1 1 can be a mobile communications network of GSM, EDGE, 3G, 3G +, 4G ...

According to this particular embodiment of the invention, when a RCS communication is established between two terminals (not shown) connected to the mobile communication network 11, the audio data stream is transmitted in a circuit mode on the communication network. 1 1 and the other data streams (video, text, etc.) are transmitted according to the IMS service of the mobile communication network 10.

The terminal 15 is able to establish communications via the communication network 1 1. The mobile communication network 11 and the fixed communication network 12 are interconnected via a GMSC server 17 (for Gateway Mobile Switching Center in English). According to this mode In particular, the communication gateway 16 is also connected to the mobile communication network 11.

FIG. 2 schematically illustrates steps of the method of establishing an enriched communication according to a particular embodiment of the invention.

The method of establishing a communication is implemented by the communication gateway 16 and a GMSC server 17 of FIG.

In this particular embodiment of the invention, the mobile communication networks 10 and 11 are shown in FIG. 1 as two separate networks for the sake of clarity. However, these two communication networks 10 and 11 may be based on the same infrastructure. The two communication networks 10 and 11 differ in the services they implement and in the associated service platforms. The mobile communication network 10 implements an IP data communication service while the mobile communication network 11 implements a communication service in circuit mode.

During a step E1, the terminal 15 sends a communication request to the public identity associated with the terminal 13. According to a particular embodiment of the invention, the communication request sent by the terminal 1 5 is routed through the communication network 1 1. During the step E1, the communication network 1 1 identifies in known manner that the communication request is to a terminal connected to the communication network 12. The communication request is then received by the GMSC server 17.

During a step E2, the GMSC server 17 checks whether the terminal 15 that issued the communication request is able to establish an enriched communication, for example according to the RCS standard. For this, the GMSC server 17 interrogates the application server 18 of the communication network 10 in order to know the capabilities of the terminal 15.

If the terminal 15 is a terminal of a user subscribed to the operator of the communication network 10, the application server 1 8 consults a database in which the capabilities of the subscriber terminals are stored with the operator of the communication network 10 which are recorded on the communication network 1 0.

In the case where the user of the terminal 15 is not a subscriber to the operator of the communication network 10 or if such a database is not implemented, the application server 18 sends to the terminal A message of discovery of the capabilities of the terminal 15 via the communication network 10. Such a message is for example transmitted in the form of a SIP message OPTIONS SIP protocol. Following the reception by the terminal 1 5 of the capacity discovery message sent by the application server 1 8, the terminal 15 then responds to the application server 18 by sending a SIP message 200OK including the supported capabilities by the terminal 15 and in particular the RCS capabilities. For example, the terminal 15 indicates that it supports video communications, text, instant messaging.

The response message sent by the terminal 1 5 is routed via the communication network 10. The application server 18 receives the response message comprising the capabilities of the terminal 15 and informs the GMSC server 17 of said capabilities. As the terminal 15 is able to establish an enriched communication, through the use of the SCR capabilities verified in the step E2, the GMSC server 17 proceeds to the next step E4 of the method of establishing an enriched communication according to the invention.

In the case where the terminal 15 does not support any RCS functionality, the communication requested by the terminal 15 is conventionally established between the terminal 15 and the terminal 13 via the communication network 11 and the communication network 12.

According to a particular embodiment of the invention, during a step E3, the GMSC server 17 verifies whether the terminal 13 receiving the communication request is able to establish an enriched communication.

For this, the GMSC server 17 queries the application server 19 of the communication network

12 in order to know the capabilities of the terminal 13.

The application server 19 can consult a database in which the capabilities of the subscriber terminals are stored with the operator of the communication network 12 which are recorded on the communication network 12.

In the case where the user of the terminal 13 is not a subscriber to the operator of the communication network 12 or if such a database is not implemented, the application server 19 sends to the terminal 13 a message of discovery of the capabilities of the terminal 13 via the communication network 12. Such a message is for example transmitted in the form of a SIP message SIP protocol OPTIONS. Following receipt by the terminal 13 of the capacity discovery message sent by the application server 1 9, the terminal 13 then responds to the application server 19 by sending a SIP message 200OK comprising the capabilities supported by the terminal 13 and in particular the RCS capabilities. For example, the terminal 13 indicates that it supports video communications.

The response message sent by the terminal 13 is routed via the communication network 12. The application server 19 receives the response message comprising the capabilities of the terminal

13 and informs the GMSC server 17 of said capabilities.

Since the terminal 15 and the terminal 13 support common RCS functionalities, here the communication in video mode, the GMSC server 17 proceeds to the next step E4 of the method of establishing an enriched communication according to the invention.

According to this particular embodiment of the invention, in the case where the terminal 13 does not support any RCS functionality or in the case where the terminal 13 does not support common RCS functionality with the functionalities supported by the terminal 15, the requested communication by the terminal 15 is established conventionally between the terminal 15 and the terminal 13 via the communication network 1 1 and the communication network 12.

In step E4, the GMSC server 17 obtains a temporary mobile identity on the communication network 1 0. For this, the GMSC server 17 selects a mobile phone number from a group of available mobile phone numbers assigned to the operator of the communication network 12. The group of mobile phone numbers is for example stored in a server of the communication network 12 which can be accessed by the GMSC server. At each number of Group mobile phone is associated with an availability indicator indicating whether or not the mobile phone number is being used.

According to another particular embodiment of the invention, the user of the terminal 13 is also subscribed to the operator of the communication network 10. The user of the terminal 13 has a terminal 14 registered in the communication network 10 with a public identity associated with the terminal 14. According to this particular embodiment of the invention, the user of the terminal 13 has previously associated the identity associated with the terminal 13 and the identity associated with the terminal 14 with the communication network operator 10. This association is stored in a database of the communication network 10 which is accessible by the GMSC server 17 or the gateway 16. According to this particular embodiment of the invention, during the step E4, the GMSC server 17 consults the database of the communication network 10 and obtains the identity associated with the terminal 14.

During step E4, the GMSC server 17 informs the gateway 16 of the communication request sent by the terminal 15 to the terminal 13 and the identity obtained above.

During a step E5, the gateway 16 stores in memory an association between the identity obtained during the step E4 and the terminal 13.

During a step E6, the gateway 16 registers on the communication network 1 0 with the identity obtained during the step E4. The registration of the gateway is for example implemented by sending a REGISTER message according to the SIP protocol at the heart of the communication network 10. During the step E6, the gateway 16 associates a communication port of the gateway to the identity obtained during step E4.

According to the particular embodiment of the invention in which the identity obtained during the step E4 is an identity associated with the terminal 14, the registration message of the gateway 16 comprises a parameter q assigned a value of 0.0. Thus, the gateway 16 is registered in the communication network 10 as a secondary terminal for the identity associated with the terminal 14. In this embodiment of the invention, the terminal 14 is registered in the communication network as a second terminal. that primary terminal for the identity associated with the terminal 14.

During a step E7, the server GMSC 17 redirects in the communication network 1 1 the communication request sent by the terminal 15 to a server MSC (for Media Switching Center) of the communication network 1 1 by which the gateway 16 is connected to the communication network 1 1. The communication request sent by the terminal 15 is thus redirected to the communication port of the gateway 16 associated with the identity obtained.

During a step E8, the gateway 1 6 sends a new communication request to the terminal 13 via the communication network 12. Such a communication request is sent for example as an INVITE message according to the SIP protocol. .

During the step E8, following the reception by the terminal 13 of the communication request sent by the gateway 16, the terminal 13 answers and answers by sending to the gateway 16 a acceptance message of the communication request, via the communication network 12. Such acceptance message corresponds for example to a 200OK SIP message.

During a step E9, the gateway 1 6 receives the acceptance message of the communication request sent by the gateway 16. A connection for exchanging multimedia streams with the terminal 13, via the communication network 12, is established between the gateway 16 and the terminal 13. During the step E9, following the reception of the message of acceptance of the communication request sent by the terminal 13, the gateway 16 establishes a connection making it possible to exchange a stream voice with the terminal 15, via the communication network 1 1. The gateway 16 also establishes a connection for exchanging a multimedia data stream with the terminal 15, via the communication network 10.

Following step E9, communication is established between the terminal 15 and the terminal 13 via the gateway 1 6.

During the established communication, the gateway 16 links the connections established with the terminal 15 and the connection established with the terminal 13 so that:

a voice stream transmitted by the terminal 15 via the communication network 1 1 and received by the gateway 16, is transmitted by the gateway 16 to the terminal 13 via the communication network 12,

a multimedia data stream transmitted by the terminal 1 5 via the communication network 1 0 and received by the gateway 16, is transmitted by the gateway 16 to the terminal 13 via the communication network 12,

a multimedia data stream transmitted by the terminal 13 via the communication network 12 and received by the gateway 16, is separated by the gateway 16 into a first voice sub-stream transmitted to the terminal 15 via the communication network 11 and in one second multimedia data sub-stream transmitted to the terminal 15 via the communication network 10.

The communication established between the terminal 1 5 and the terminal 13 via the gateway 16 can thus be enriched by the use of the services of the communication network 10. The enrichment data of the communication are transmitted in the form of a multimedia data stream during the communication.

The terminal 13 benefits from the enrichment services of the communication network 10 via the gateway 16. In order to provide the enrichment services to the terminal 13, the service platforms of the communication network 10 are addressed to the gateway 16 in the same way as when the service platforms are addressed to a terminal registered on the communication network 10. The service logic of the communication network 10 is thus not modified.

According to a particular embodiment of the invention, during a step E1 0, when the communication between the terminal 15 and the terminal 13 is completed, the connections established between the gateway 16 and the terminals 15 and 13 are released. During the step E10, the gateway 16 is de-registering the communication network 10 for the identity obtained during the step E4. For example, the gateway 16 sends a REGISTER message according to the SIP protocol with a value of 0 assigned to the "Expires" field of the REGISTER message. According to another particular embodiment of the invention, during the step E1, the communication request sent by the terminal 15 is conveyed via the communication network 10. In this embodiment, the communication request is by example issued by the terminal 15 in the form of a SIP INVITE message according to the SIP protocol.

According to this particular embodiment of the invention, the steps E1, E2, E3, E4 and E7 are implemented by an interconnection server (not shown in FIG. 1) between the communication network 10 and the communication network. 12 in a manner similar to those implemented by the GMSC server 17. The other steps are implemented by the gateway 16 in the same manner as the embodiment described above.

According to this particular embodiment of the invention, the data streams of the communication exchanged between the terminal 15 and the terminal 13 are transmitted via the communication network 10, the gateway 1 6 and the communication network 12.

When communication is established following step E9, the gateway 16 abuts the connection established with the terminal 1 5 via the communication network 1 0 and the connection established with the terminal 13 via the communication network 12, so that:

a multimedia data stream transmitted by the terminal 13 via the communication network 12 and received by the gateway 16, is transmitted by the gateway 16 to the terminal 15 via the communication network 10.

According to another particular embodiment of the invention, the invention is implemented by an intelligent network platform SCP (Service Control Platform in English) of the communication network 1 1 or the communication network 10.

According to this particular embodiment, following the detection during step E1 that the communication request sent by the terminal 15 is to a terminal connected to the communication network 12, a switch (not shown) of the network of communication 1 1 or 1 0 associated with the terminal 1 5 triggers the SCP intelligent network platform.

According to this particular embodiment, the intelligent network platform SCP then implements the steps E2, E4, E5, E6, E7, E8, E9, E10 and possibly E3 in a manner similar to that described for the embodiment using the GMSC server and the communication gateway 16. According to this particular embodiment of the invention, the intelligent network platform SCP comprises the communication gateway 16.

As a variant of this particular embodiment of the invention, the communication gateway is included in an application server of the communication network 10.

FIG. 3 illustrates a device able to implement the method of establishing an enriched communication according to a particular embodiment of the invention. The device 30 comprises a storage module 32, for example a memory (MEM), a processing unit 33, equipped for example with a microprocessor (PROC), and driven by the computer program (PG) 31 implementing the method of establishing an enriched communication as described with reference to FIG. 2 and FIG. At initialization, the code instructions of the computer program 31 are for example loaded into memory (MEM) before being executed by the processor (PROC) of the processing unit 33. processing 33 implements the steps of the method of establishment of an enriched communication initiated by a terminal 15 connected to the communication network 1 0 and having sent a communication request to the terminal 13 connected to the communication network 12, according to the instructions of the computer program 31. When the terminal 1 5 is able to establish an enriched communication, the processor of the processing unit 33 implements in particular:

a step of obtaining a temporary identity available on the communication network 10,

a step of memorizing an association of said temporary identity obtained at the terminal 13,

a step of registering the gateway 16 on the communication network 10 with said temporary identity obtained,

a step of redirecting the communication request from the terminal 15 to the gateway 16,

a step of establishing a connection between the terminal 13 and the gateway 16, so that an enriched communication is established between the terminal 15 and the terminal 13 via the gateway 16.

The device 30 also comprises communication means 35. The communication means are for example implemented by a communication module (COM1). The communication module allows the device 30 to establish communications via the communication network 12 of FIG. The communication module (COM1) makes it possible to send and receive data streams from and to the terminal 13 via the communications network 12. The communication module (COM1) makes it possible to communicate with application servers of the network of communication 12.

The device 30 also comprises communication means 36. The communication means are for example implemented by a communication module (COM2). The communication module enables the device 30 to establish communications via the communication network 10 of FIG. 1. The communication module (COM2) makes it possible to send and receive data streams from and to the terminal 15 via the communications network 10. The communication module (COM1) makes it possible to communicate with application servers and communication network service platforms 10.

The device 30 also comprises communication means 37. The communication means are for example implemented by a communication module (COM3). The communication module enables the device 30 to establish communications via the communication network 11 of FIG. 1. The communication module (COM3) makes it possible to transmit and receive data streams from and to the terminal 1 5, via the communications network 1 1. The communication module (COM1) makes it possible to communicate with application servers of the communication network 11 and the server GMSC 17.

The storage module 32 notably makes it possible to store an association between the temporary identity obtained and the terminal 13.

According to a particular embodiment of the invention, the device 30 is included in a gateway, such as for example the gateway 16 of FIG.

According to a particular embodiment of the invention, the device 30 is included in a network interconnection server or in a GMSC server of a mobile communication network.

Claims

claims

A method of establishing an enhanced communication initiated by a first terminal connected to a first communication network, said first terminal having sent (E1) a communication request to a second terminal connected to a second communication network, the method is characterized in that it comprises, when the first terminal is able (E2) to establish an enriched communication via the first communication network:

a step of obtaining (E4) a temporary identity available on the first communication network,

a step of storing (E5) an association of said temporary identity obtained at the second terminal,

a step of recording (E6) a communication gateway on the first communication network with said temporary identity obtained,

a step of redirection (E7) of the communication request from the first terminal to the communication gateway,

a step of establishing (E9) a connection between the second terminal and the communication gateway, so that an enriched communication is established between the first terminal and the second terminal, via the communication gateway.

A method of establishing an enriched communication according to claim 1, wherein prior to the step of obtaining a temporary identity, it comprises a verification step that the second terminal is able to establish an enriched communication, the step of obtaining a temporary identity being implemented in the case of a positive verification.

Method for establishing an enriched communication according to any one of claims 1 or 2, comprising, following the end of the communication established between the first terminal and the second terminal, a step of de-registering the communication gateway on the first communication network for said temporary identity.

A method of establishing an enriched communication according to any one of claims 1 to 3, wherein the communication request from the first terminal is transmitted via a third communication network supporting circuit mode communications.

A method of establishing an enriched communication according to any one of claims 1 to 4, wherein the temporary identity is a mobile telephone number selected from a group of mobile phone numbers assigned to an operator of the second communication network.

A method of establishing an enriched communication according to any one of claims 1 to 5, wherein the temporary identity on the first communication network is an identity of a third terminal associated with the second terminal.

A method for establishing an enriched communication according to claim 6, wherein the third terminal is registered as a primary terminal associated with the temporary identity, during the step of registering the communication gateway on the first communication network with said temporary identity, the communication gateway registers as a secondary terminal associated with the temporary identity.

Device for establishing an enriched communication initiated by sending a communication request by a first terminal connected to a first communication network, to a second terminal connected to a second communication network, characterized in that it comprises the following means activated when the first terminal is able to establish an enriched communication via the first communication network:

means for registering a communication gateway on the first communication network with said temporary identity obtained, means for redirecting the communication request from the first terminal to the communication gateway,

means for establishing a connection between the second terminal and the communication gateway, so that an enriched communication is established between the first terminal and the second terminal via the communication gateway.

Gateway comprising a device according to claim 8.

A computer program comprising program code instructions for performing the steps of the method of establishing a communication according to any one of claims 1 to 7, when the program is executed by a processor.