KR101637666B1 - System and method of providing enterprise telephone service using personal mobile terminal - Google Patents

Abstract

A method for providing a wired / wireless telephone integration service using a mobile communication terminal is disclosed. In one embodiment, at the signaling gateway, a call is received from a Call Session Control Function (CSCF) device, the address of the signaling gateway included in the recipient address of the call is removed, the caller address of the call is changed, To the Internet telephone exchange corresponding to the changed sender address.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and system for providing a wired / wireless telephone integrated service using a personal mobile communication terminal,

The present invention relates to a method and system for providing a wired / wireless telephone integration service through a personal mobile communication terminal, and more particularly, to a method and system for making a call using a corporate Internet telephone service in a personal mobile communication terminal without a separate application program .

As the technology of the mobile communication system rapidly develops, the demand also increases, and nowadays most people are carrying mobile communication terminals including the Long Term Evolution (LTE) smartphone.

As a part of BYOD (Bring Your Own Device), such a personal mobile communication terminal is often used for business purposes. The most necessary function is a function of receiving and transmitting a telephone call. The easiest way to use a business smartphone with a personal smartphone is to install a separate Voice Over Internet Protocol (VoIP) application and receive and send it to a business phone number. These services already have many commercial applications. Most of the integrated wired and wireless telephone services using smartphones are configured to use the data communication function of the smart phone, so that the enterprise VoIP application program is connected to the Internet telephone exchange of the corresponding company and operates as a business terminal. These services are often called fixed mobile convergence (FMC) for enterprises. Smart phone-based business-to-business telephone and telephony integration service is a great help for many enterprise users because it eliminates the weakness that the existing enterprise telephony is based on fixed telephones and restricts movement and eliminates the need to separately manage personal telephony and enterprise telephony.

However, there is a problem that the above-described wire / wireless integrated service for enterprise requires a separate application program, and the communication quality is relatively low.

According to embodiments, it is possible to provide a technique for using a wired / wireless telephone integration service in a smart phone using an existing dial existing in a smart phone without requiring a separate VoIP application program for the FMC service.

According to the embodiments, it is possible to provide a technology for improving call quality of a wire / wireless telephone integrated service for enterprise using a QoS-guaranteed call dedicated channel, improving usability without using a separate application program, and reducing battery consumption have.

In addition, embodiments can provide a technique that can be used in various types of terminals without being limited by the type of mobile communication terminal.

According to one embodiment, a mobile and fixed-line telephone integration service can be provided using a mobile communication terminal.

A method for providing a wired / wireless telephone integrated service using the mobile communication terminal includes the steps of: receiving a call from a CSCF (Signaling Gateway) in a signaling gateway; removing an address of a signaling gateway included in a receiver address of the call; Changing the sender address of the call, and sending the call to which the address of the signaling gateway has been removed and the sender address changed to the Internet telephone exchange corresponding to the changed sender address.

According to one aspect, the Internet telephone exchange may be at least one of an IP-PBX or an IP-Centrex.

According to another aspect of the present invention, a method for providing a wired / wireless telephone integration service using a mobile communication terminal may further include the step of maintaining subscriber information of the enterprise wired and wireless telephone integration service in a database.

At this time, the subscriber information of the enterprise wired / wireless telephone integration service includes at least one of a mobile communication terminal telephone number subscribed to the enterprise wired and wireless telephone integration service, an address of the Internet telephone exchange corresponding to the mobile communication terminal telephone number, Wherein changing the sender address of the request message includes identifying a subscriber ID corresponding to the sender mobile communication terminal telephone number included in the sender address of the request message with reference to the authentication information held in the database And changing the phone number of the mobile communication terminal of the calling mobile communication terminal included in the sender address of the request message to the identified subscriber ID.

Alternatively, the subscriber information of the enterprise wired / wireless telephone integration service may include at least one of a mobile communication terminal telephone number of a user subscribed to the enterprise wired and wireless telephone integration service, an Internet telephone exchange address corresponding to the mobile communication terminal telephone number, Wherein the step of changing the sender address of the request message includes the enterprise internet telephone number of the subscriber corresponding to the sender mobile communication terminal telephone number included in the sender address of the request message, And changing the telephone number of the calling mobile communication terminal included in the sender address of the request message to the identified corporate Internet telephone number.

According to another aspect, there is provided a method in a CSCF device, comprising: determining in a CSCF device that an address of a signaling gateway is included in a recipient address of the call; and if the address of a signaling gateway is included in the recipient address of the call in the CSCF device, And sending the call to the signaling gateway.

According to an embodiment of the present invention, a method for providing a wire / wireless telephone integrated service for a business using a mobile communication terminal includes determining whether an address of a signaling gateway is included in a receiver address of a request message received from a mobile communication terminal, If the address includes the address of the signaling gateway, routing the request message to the signaling gateway.

According to one embodiment, a method for providing a wired / wireless telephone integrated service using a mobile communication terminal includes the steps of removing an address of a signaling gateway included in a recipient address of a routed call, changing a sender address of the call, And sending a request message including the removed sender address and the modified sender address.

According to one embodiment, a method for providing a wired / wireless telephone integrated service using a mobile communication terminal includes receiving, at a signaling gateway, a signal indicating that a call is to be made to a recipient's telephone number using a business Internet telephone number, ) Receiving a call from the device, changing the address of the signaling gateway included in the recipient address of the call to the recipient telephone number obtained via the signal, transmitting the telephone number of the mobile communication terminal included in the originator address of the call to the signal And transmitting the call including the changed recipient address and the sender address to the Internet telephone exchange corresponding to the enterprise Internet telephone number.

According to one aspect, the Internet telephone exchange may be at least one of an IP-PBX or an IP-Centrex.

According to another aspect, in a CSCF apparatus, determining whether the address of the signaling gateway is included in a recipient address of the call, and, in the CSCF apparatus, if the address of the signaling gateway is included in the recipient address of the call, And routing the call to the signaling gateway.

A method of providing a wired / wireless telephone integrated service using a mobile communication terminal according to an exemplary embodiment includes receiving a request message from an Internet telephone exchange in a signaling gateway, The method comprising the steps of: identifying the terminal, transmitting information indicating that a call has been received to the mobile communication terminal as a business Internet telephone number, and changing the enterprise Internet telephone number included in the recipient address of the request message to the telephone number of the mobile communication terminal And sending the request message including the modified recipient address to the CSCF device.

According to one aspect of the present invention, the method may further include requesting allocation of a media relay resource to the media gateway, and changing media information of the received SDP packet to media information of the media relay resource allocated by the media gateway.

According to one embodiment, a method of providing two telephone number services using a mobile communication terminal is provided. The method of providing two telephone number services comprises the steps of: receiving, in an application server equipment of a network, a first request message from a call session control function (CSCF) apparatus through an origination trigger; Removing an included application server address, and sending a second request message to the CSCF device, the second request message including a recipient address from which the application server address has been removed.

According to one aspect of the present invention, the method further includes changing the sender address of the received first request message to a second telephone number of a sender, Sending a second request message to the CSCF device may include transmitting a second request message to the CSCF device, the second request message including a changed sender address to the second phone number of the caller.

According to one embodiment, there is provided a method of providing a wired / wireless telephone integrated service using a mobile communication terminal, the method comprising: receiving, at an enterprise communication application server (E-TAS), a first request message from a CSCF (Call Session Control Function) Removing a corporate communication application server address included in a recipient address of the received first request message and transmitting a second request message including a recipient address from which the enterprise communication application server address is removed to the CSCF device .

According to one aspect of the present invention, there is provided a method for providing a wired / wireless telephone integrated service using a mobile communication terminal, the method further comprising changing a sender address of the received first request message to a calling Internet telephone number, Sending a second request message to the CSCF device, the second request message including a destination address that has been removed from the CSCF device, includes sending a second request message to the CSCF device, the second request message including a source address changed to the calling Internet telephone number .

According to another aspect of the present invention, a method for providing a wired / wireless telephone integrated service using the mobile communication terminal may further include maintaining service subscriber information in a database.

At this time, the service subscriber information may include a phone number of a mobile communication terminal of a user subscribed to the wire / wireless telephone integration service and a business internet telephone number of a user subscribed to the wire / wireless telephone integration service.

The step of changing the sender address of the received first request message to the Internet telephone number of the sender enterprise may further include the step of transmitting the enterprise Internet telephone number of the service subscriber corresponding to the sender mobile communication terminal telephone number included in the sender address of the message, Referring to the database and changing the phone number of the calling mobile communication terminal included in the sender address of the first request message to the identified corporate Internet telephone number.

According to another aspect of the present invention, there is provided a method of providing a wired / wireless telephone integrated service using the mobile communication terminal, the method comprising: determining whether a CSCF device includes a corporate communication application server address at a receiver address of a first request message received from the mobile communication terminal And if the address of the enterprise communication application server is included in the address of the first request message received from the mobile communication terminal, the CSCF device transmits a first request message received from the mobile communication terminal to the enterprise communication application server (E-TAS), and transmitting the trigger.

According to an embodiment of the present invention, there is provided a method of providing a wired / wireless telephone integrated service using a mobile communication terminal, comprising the steps of: determining whether an address of a corporate communication application server (E-TAS) is included in a receiver address of a first request message received from a mobile communication terminal; Transmitting the first request message to the enterprise communication application server (E-TAS) through a transmission trigger when the address of the enterprise communication application server (E-TAS) is included in the receiver address of the received first request message . ≪ / RTI >

According to one aspect of the present invention, there is provided a method of providing a wired / wireless telephone integrated service using the mobile communication terminal, the method further comprising receiving a second request message from the enterprise communication application server (E-TAS) The enterprise communication application server (E-TAS) address included in the receiver address of the first request message is removed, and the sender address is changed to the Internet telephone number for the sender enterprise.

The method further includes transmitting the second request message to a communication application server (TAS) corresponding to a receiver address of the second request message through a reception trigger can do.

According to one embodiment, a method for providing a wired / wireless telephone integration service using a mobile communication terminal includes the steps of: receiving a signal from a corporate communication application server (E-TAS) The method comprising the steps of: receiving a first request message from a call application control server (E-TAS) through a call trigger from a call session control function (CSCF) device, receiving a mobile communication terminal telephone number included in a sender address of the first request message Signal to the enterprise Internet telephone number, and transmitting the second request message with the changed sender address to the communication application server (TAS) corresponding to the receiver's telephone number through a reception trigger have.

According to one embodiment, a method for providing a wired / wireless telephone integrated service using a mobile communication terminal comprises the steps of: receiving a first request message from a CSCF device through a reception trigger in an enterprise communication application server (E-TAS) The method comprising the steps of: transmitting, at the server (E-TAS), information informing the recipient's mobile communication terminal that a call has been received to the recipient's enterprise Internet telephone number; changing the recipient address of the first request message to a recipient's mobile communication telephone number; And sending a second request message to the CSCF device including the modified recipient address.

According to one aspect of the present invention, there is provided a method of providing a wired / wireless telephone integration service using a mobile communication terminal, the method comprising: providing a service subscriber including a telephone number of a mobile communication terminal subscribed to a wired / wireless telephone integration service, The method of claim 1, further comprising maintaining the information in the database, wherein the step of changing the recipient address of the first request message to a recipient mobile communication telephone number comprises: Identifying a recipient mobile communication telephone number and changing the corporate Internet telephone number included in the recipient address of the first request message to the identified recipient mobile communication telephone number.

Using a conventional dialer existing on a smart phone, a smart phone can use a wired / wireless phone integration service without a separate VoIP application program. Using an existing dialer does not mean that an alternate dialer (SKT's T-phone, etc.) can not be used, and the protocol for making a call between the terminal and the network is possible without change in the terminal. Therefore, it is possible to directly use a dialer existing in the terminal or an alternative dialer which does not touch the existing protocol.

QoS-guaranteed call-only channels can be used to improve the call quality of enterprise wireline and telephony integration services, improve usability without using separate applications, and reduce battery consumption.

Since it is implemented using existing dialers existing in all terminals, it can be used in various types of terminals regardless of the type of mobile communication terminal.

1 is a diagram for explaining a configuration of a conventional VoLTE network.
2 is a flowchart illustrating a process of registering a conventional VoLTE client in a VoLTE network.
3 is a flowchart illustrating a process of transmitting a conventional VoLTE client to another VoLTE client through the same VoLTE network.
FIG. 4 is a flowchart illustrating a process of transmitting a conventional VoLTE client to a terminal using another network.
5 is a diagram for explaining a configuration of a VoLTE network for providing a wired / wireless telephone integration service according to an embodiment.
6 is a flowchart illustrating a process of registering a VoLTE client according to an embodiment in a VoLTE network for providing a wired and wireless telephone integration service.
FIG. 7 is a flowchart for explaining a process in which a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service originates an enterprise Internet telephone number to another VoLTE client in the same network.
8 is a flowchart for explaining a process in which a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integrated service according to an embodiment transmits a business Internet telephone number to another VoLTE client in the same network using an address of a signaling gateway to be.
9 is a flowchart illustrating a process in which a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment uses an address of a signaling gateway to originate a business Internet telephone number to another VoLTE client.
FIG. 10 is a diagram illustrating a modified form of a procedure for a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an embodiment to originate a business Internet telephone number to another VoLTE client using an address of a signaling gateway FIG.
11 is a view for explaining a modified form of the process of making a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment to originate a business Internet phone number to another VoLTE client using an address of a signaling gateway FIG.
12 is a flowchart illustrating a process of receiving a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an exemplary embodiment of the present invention with a corporate Internet telephone number.
FIG. 13 is a flowchart illustrating a modified form of a process of receiving a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an exemplary embodiment of the present invention with a corporate Internet telephone number.
14 is a diagram for explaining a configuration of a signaling gateway of a VoLTE network for providing a wired / wireless telephone integrated service according to an embodiment.
15 is a diagram for explaining a configuration of a VoLTE network for providing a wired / wireless telephone integration service according to an embodiment.
16 is a diagram for explaining a TAS through which a VoLTE client terminal according to an embodiment connects a call.
17 is a flowchart illustrating a process of registering a VoLTE client according to an embodiment in a VoLTE network that provides a wired and wireless telephone integration service.
FIG. 18 is a flowchart illustrating a process in which a VoLTE client registered in a VoLTE network for providing a wired / wireless telephone integration service according to an embodiment transmits a business Internet telephone number to another VoLTE client in the same network.
FIG. 19 illustrates a process in which a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integrated service according to an embodiment transmits an enterprise Internet telephone number to another VoLTE client in the same network using an address of a corporate communication application server Fig.
20 is a flowchart for explaining a process in which a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment transmits a business Internet telephone number to another VoLTE client using an address of a corporate communication application server .
FIG. 21 illustrates a modified form of a process of making a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an embodiment to a VoLTE client using a corporate Internet telephone number using an address of a corporate communication application server Fig.
22 illustrates a modified form of a process of transmitting a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment to another VoLTE client using a corporate Internet phone number using an address of a corporate communication application server Fig.
23 is a flowchart illustrating a process of receiving a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an exemplary embodiment of the present invention with a corporate Internet telephone number.
FIG. 24 is a flowchart for explaining a modified form of a process of receiving a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an embodiment of the present invention with a corporate Internet telephone number.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are presented for the purpose of describing embodiments only in accordance with the concepts of the present invention, May be embodied in various forms and are not limited to the embodiments described herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. It should be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms disclosed, but includes all modifications, equivalents, or alternatives falling within the spirit and scope of the invention.

The terms first, second, or the like may be used to describe various elements, but the elements should not be limited by the terms. The terms may be named for the purpose of distinguishing one element from another, for example without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, Similarly, the second component may also be referred to as the first component.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

1 is a diagram for explaining a configuration of a conventional VoLTE network.

1, the VoLTE client includes a subscriber information management server (HSS) 111, a call session control function (CSCF) 112, a communication application server (TAS) 113, an interconnection Border A public switched telephone network (PSTN), etc. through a VoLTE network including a control function 114 and an Interconnection Border Gateway Function (IBGF) 115.

More specifically, the VoLTE client transmits a VoLTE service request message (INVITE) to the call processing control unit (CSCF) 112. In the call processing control unit 112, Performing an origination trigger through a telephony application server (TAS) 113 after authenticating a service of a transmitting terminal, and performing an originating trigger through an external network and voice over an LTE network using the IBCF 114 and the IBGF 115. [ And performing a call. Here, IBCF (Interconnection Border Control Function) is a network interworking device, and IBGF is a device for media processing with an external network.

2 is a flowchart illustrating a process of registering a conventional VoLTE client in a VoLTE network.

2, the process of registering the VoLTE client 211 in the VoLTE network may be performed through the call processing controller (CSCF) 212, the subscriber information management server (HSS) 213, and the TAS 214.

In step 210, the VoLTE client 211 can request registration with the call processing control unit (CSCF) 212.

Then, in step 220, the CSCF 212 can confirm whether the subscriber information management server (HSS) 213 subscribes to the VoLTE service.

In step 230, the CSCF 212 may receive a subscription confirmation message from the subscriber information management server (HSS) In this process, the CSCF 212 can know to which application server to register.

In step 240, the CSCF 212 may perform registration with the communication application server (TAS) 214 (third party registration).

3 is a flowchart illustrating a process of transmitting a conventional VoLTE client to another VoLTE client through the same VoLTE network.

3, the VoLTE client 311 transmits a call to another VoLTE client through the same VoLTE network through a call processing controller (CSCF) 312, a first TAS 313, and a second TAS 314 Lt; RTI ID = 0.0 > VoLTE < / RTI >

In step 310, the VoLTE client 311 may send a VoLTE service request message (INVITE) to the CSCF 312. At this time, the request message may have the telephone number of the VoLTE client 311 as the sender address and the telephone number of the partner VoLTE client 315 as the receiver address.

In step 320, the CSCF 312 may forward the origination trigger message to the first TAS 313 corresponding to the sender address of the request message. At this time, the CSCF can confirm that the corresponding TAS is the first TAS by referring to the sender address, and can transmit the origination trigger message to the first TAS.

In step 330, the first TAS 313 may process the connection and return a message to the CSCF.

In step 340, the CSCF 312 may forward the received trigger message to the second TAS 312 corresponding to the recipient address of the request message.

At step 350, the second TAS 314 may return the message back to the CSCF after processing necessary for the connection.

In step 360, the CSCF 312 may send a request message to the partner VoLTE client 315 to make a call origination.

In the case of FIG. 3 using the same VoLTE network, media processing for changing the media information 391 is not required.

According to one embodiment, when the telephone number of the first user (P1) is 010-1234-1111 and the telephone number of the second user (P2) is 010-5678-9999, the request message from the terminal to the CSCF is next Can be expressed as: Only the fields necessary for explanation of the present invention are shown.

Request tel: +821056789999 SIP / 2.0

To: <tel: +821056789999>

From: <sip: 01012341111@kt.com>

P-Asserted-Identity: <sip: 01012341111@kt.com>

The above-mentioned request message can be expressed as From: P1, To: P2 in FIG.

4 is a flowchart for explaining a process in which a conventional VoLTE client 411 originates a call to a terminal 416 using another network.

4, the VoLTE client 411 transmits a call to the terminal 416 using another network through the CSCF 412, the TAS 413, the IBCF 414, and the IBGF 415, Lt; RTI ID = 0.0 &gt; 416 &lt; / RTI &gt;

At step 410, the VoLTE client 411 may send a request message to the CSCF 412 requesting a VoLTE service. At this time, the request message may include the telephone number P1 of the VoLTE client as the sender address and the telephone number P2 of the terminal 416 using the other network as the receiver address.

In step 420, the CSCF 412 may forward the origination trigger message to the TAS 413 corresponding to the originator address of the request message.

At step 430, the TAS 413 may process the connection and return a message to the CSCF.

In step 440, the CSCF 412 may send a request message to the interworking equipment IBCF 414 by confirming that the recipient phone number is P2 and not a user present in the same network.

At step 450, the IBCF 414 may request media resource allocation to the IBGF 415 for media processing with the external network.

In step 460, the IBCF 414 assigns the VoLTE client's telephone number P1 as the originator address and the telephone number P2 of the terminal 416 using the other network to the terminal 416 using the other network, As a recipient address.

The media is relayed between P1 and P2 via IBGF. That is, the request message in step 410 has SDP packet 491 before media processing, and the request message in step 460 is SDP packet 492 changed to media information of media relay resource allocated in IBGF, Lt; / RTI &gt;

Here, the dotted line display 499 omits a procedure that can be included in the middle. This can be seen as a general VoIP connection procedure.

In order to solve the problems of the conventional wired / wireless integrated (FMC) system and apply the new system to the current system, several conditions are required. First, it does not change the dialer of the existing terminal such as smart phone or general phone, protocol of interworking of terminal and server. It is assumed that Enhanced Wired and Wireless Integrated Services (eFMC) subscribers are using VoLTE services. To complete the present invention, additional equipment is needed in the server infrastructure. The enhanced e-commerce (eFMC) service is a new service for the enhanced e-commerce integration (eFMC) service of enterprise communication application server (E-TAS), using existing VoLTE client, CSCF, TAS, IBCF and IBGF. Equipment.

Hereinafter, 'in-network' means sharing a VoLTE network of a mobile communication network provider providing eFMC service, and 'network outside' means a VoLTE network of a mobile communication carrier in addition to a VoLTE network of a mobile communication network provider providing eFMC service, (2G / 3G CS network), which are not included in the 'network'.

In the interpretation of the other symbols, Pn denotes a mobile communication terminal telephone number of the user n, En denotes a business internet telephone number of the user n, and Xn denotes a business extension telephone number of the user n.

5 is a diagram for explaining a configuration of a VoLTE network for providing a wired / wireless telephone integration service according to an embodiment.

5, a VoLTE network providing a wired / wireless telephone integration service according to an embodiment includes a service subscriber 590, a signaling gateway (E-SGW) 510, a media gateway (E-MGW) 520, (HSS) 530, a CSCF 540, a TAS 550, an IBCF 560, an IBGF 570, and an Internet telephone exchange (IP-PBX) 580.

According to one embodiment, equipment of a signaling gateway (E-SGW) 510 and a media gateway (M-SGW) 520 is added to the VoLTE network structure. The E-SGW 510 may store the information of the eFMC service subscriber in the database (DB) 511. The eFMC is an enterprise service whereby corporate members join the service and the company can have an Internet telephone exchange (IP-PBX, 580). The IP-PBX can be in-house or in a company designated location and can be implemented as IP-Centrex in a hosted manner. Hereinafter, the present invention will be described as an IP-PBX.

6 is a flowchart illustrating a process of registering a VoLTE client according to an embodiment in a VoLTE network for providing a wired and wireless telephone integration service.

6, the process of registering VoLTE client 611 in the VoLTE network for providing wired / wireless telephone integration service includes CSCF 612, subscriber information management server (HSS) 613, TAS 614, E- The SGW 615 and the Internet telephone exchange 616. [

Information indicating that a user having the mobile communication terminal telephone number P1 (for example, 010-1234-1111) is subscribed to the eFMC through provisioning can be stored in the subscriber information management server (HSS).

Further, in the database of the E-SGW, the telephone number (P1) of the user's mobile communication terminal, the address of the Internet telephone exchange of the company to which the user belongs, the ID and the password for authentication to the Internet telephone exchange are registered in the authority setting . For example, the information shown in Table 1 below should be stored in the DB of E-SGW.

In step 610, the VoLTE client 611 may register with the CSCF 612.

In step 620, the CSCF 612 device may request the HSS 613 to confirm the service the user of the VoLTE client subscribed to. According to one embodiment, the CSCF 612 may request the subscriber information management server (HSS) to confirm whether the telephone number of the mobile communication terminal of the VoLTE client is an enterprise wire / wireless telephone integration service subscriber.

In step 630, the HSS 613 may confirm the subscription of the user's service and forward it to the CSCF 612. [

In step 640, the CSCF 612 confirming the subscription of the service may perform a third party registration to the TAS 614 for the call service. Here, the 3rd party registration to the TAS can be performed in the same manner as the existing VoLTE service.

In step 650, the CSCF 612 may perform third party registration to the E-SGW 615 for enterprise wire / wireless telephone integration services.

According to one embodiment, in the CSCF apparatus, when the telephone number of the mobile communication terminal is the subscriber for the enterprise wired / wireless telephone integration service, registration is made to both the communication application server (TAS) and the signaling gateway (E-SGW) And requests registration to the communication application server (TAS) when the user is not the enterprise wired / wireless telephone integration service subscriber.

According to one embodiment, in response to a registration request from the CSCF apparatus, the enterprise signaling gateway (E-SGW) inquires information on the mobile communication terminal telephone number, and in the enterprise signal gateway (E-SGW) The ID of the Internet telephone exchange corresponding to the terminal telephone number can be registered in the Internet telephone exchange and the ID can be stored in correspondence with the telephone number of the mobile communication terminal.

In step 660, the E-SGW 615 receiving the 3rd party registration of a specific user from the CSCF searches the database for the Internet telephone exchange address and authentication information to which the user belongs, and performs registration with the Internet telephone exchange . In this case, in the Internet telephone exchange according to the embodiment, the E-SGW can operate as a business terminal of the corresponding user.

FIG. 7 is a flowchart illustrating a process in which a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an exemplary embodiment transmits a business Internet telephone number to another VoLTE client in the same network.

7, the VoLTE client 711 transmits a call to the first CSCF 712, the first TAS 713, the signaling gateway 714, the media gateway 715, May be connected to other VoLTE clients 721 via Internet telephone switch 716, IBCF 725, IBGF 724, second CSCF 723, second TAS 722.

According to an exemplary embodiment, in step 710, a VoLTE client 711 to send a VoIP service request message (request) to a CSCF 712, Can be transmitted. The eFMC service subscriber can use a method of placing a phone number by attaching a delimiter (for example, a # before the telephone number) to the telephone number of the other party to receive the call. In this way, the VoLTE client 711 may store P1 in the sender's address (From) of the request message, store # P2 in the receiver's address (To), and send a request message to the CSCF 712.

In step 720, the CSCF 712 may perform the origination trigger with the first TAS 713 corresponding to the sender address of the request message. That is, the CSCF 712 that has received the request message sends a message to the first TAS 713 in which P1 is registered corresponding to the sender's address (From), and the first TAS 713 sends a message . When the CSCF 712 attaches a delimiter (#) to the To address, the triggering of the call to the TAS 713 is omitted, and if it is implemented, the step 720 can be omitted. In the following figure, it is explained that the trigger is triggered by TAS in all pictures, but in some cases, this process can be omitted and implemented.

In step 730, the CSCF 712 confirms that a separator is included in the address of the sender address of the request message, and transmits a request message to the E-SGW 714 according to the routing rule.

According to an embodiment of the present invention, it is determined whether or not predetermined classifier information is included in a recipient address (To address) of a request message received from a mobile communication terminal, and a pre- If classifier information is included, the request message may be transmitted to a signaling gateway (E-SGW).

In step 740, the E-SGW 714 may request the allocation of the media relay resource to the E-MGW 715. Here, the E-SGW 714 may change the media information of the received SDP packet to the media information of the media relay resource allocated by the media gateway. According to an embodiment, the media gateway may perform media conversion according to the media information.

At step 750, the E-SGW 714 may send a modified request message to the Internet telephone exchange 716. [ According to one embodiment, the Internet telephone exchange may be at least one of IP-PBX or IP-Centrex. According to an exemplary embodiment, a signaling gateway removes classifier information included in a receiver address (To address) of a request message received from a call session control function (CSCF) Address), and transmit the changed request message to the corresponding Internet telephone exchange. According to one embodiment, the changed request message may store E1, which is the enterprise internet telephone number of the user, in the sender address, and may store the general telephone number by removing the delimiter in the recipient address. Also, the request message may be an SDP packet in which the media information is changed to resource information of the E-MGW allocated by the E-MGW.

According to one embodiment, a method for providing a wired / wireless telephone integration service using a mobile communication terminal can maintain service subscriber information in a database of the E-SGW 714. According to one aspect of the present invention, the service subscriber information includes at least one of a mobile communication terminal telephone number of a mobile communication terminal subscribed to the enterprise wired and wireless telephone integration service, an Internet telephone exchange address corresponding to the mobile communication terminal telephone number, And may include the subscriber's corporate Internet telephone number. Accordingly, the subscriber's business Internet telephone number corresponding to the mobile communication terminal telephone number of the calling mobile communication terminal included in the sender address of the request message is identified by referring to the database, and the sender mobile telephone number included in the sender address The communication terminal telephone number can be changed to the identified corporate Internet telephone number.

According to one embodiment, whether the receiver address from which the delimiter information is removed is an enterprise wired / wireless telephone integrated service subscriber can be identified by referring to the database. At this time, when the receiver address from which the delimiter information is removed is the enterprise wired / wireless telephone integrated service subscriber, the SDP packet can be transmitted to the Internet telephone exchange while maintaining the generated media information.

In step 760, the Internet telephone exchange 716 may transmit the received request message to the recipient IBCF 725. In other words, since the Internet telephone exchange receiving the call request message from the E-SGW operates as the E-SGW enterprise terminal registered with the E1 number, the call to the P2 number The connection process can be performed.

In step 770, the IBCF 725 may perform media relay resource allocation to the IBGF 724. [ That is, the IBCF can receive the request message, allocate the media resource to the IBGF, and replace the media information of the SDP packet with the information allocated from the IBGF.

In step 780, the IBCF 725 may send a modified request message to the CSCF 723. [ The request message may hold an SDP packet in which the media information is changed to the IBGF resource information allocated by the IBGF (724).

In step 790, the CSCF 723 may perform call reception processing to the second TAS 722 in which the P2 user is registered.

In step 791, the CSCF 723 may forward the request message to the VoLTE client terminal 721 of the P2 number.

At this time, the media 751, 752, and 753 may flow between the E-MGW and the IBGF, and between the VoLTE terminals through the two relay.

8 is a flowchart for explaining a process in which a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integrated service according to an embodiment transmits a business Internet telephone number to another VoLTE client in the same network using an address of a signaling gateway to be.

8, the VoLTE client 801 transmits the first CSCF 802, the first TAS 811, the signaling gateway 803, the media gateway 804, and the second CSCF 802 to other VoLTE clients in the same network. May be connected to other VoLTE clients 810 via Internet telephone switch 805, IBCF 806, IBGF 807, second CSCF 808, second TAS 809.

In step 821, the VoLTE client 801 that wants to originate a corporate Internet telephone number can send a VoLTE service request message (INVITE) to the CSCF 802. The subscriber of the enterprise wired and wireless telephone integration service can combine the telephone number of the signaling gateway with the telephone number of the other party to receive the call. According to one embodiment, if the telephone number assigned to the E-SGW 803 is 010-0000-9999 and the recipient's telephone number is 010-1234-1111, the recipient address can be 0100000999901012341111.

At step 822, the CSCF 802 may acknowledge the originator address and trigger a call to send a request message to the first TAS 811. If the recipient address is the address of the signaling gateway for the origination trigger, then step 822 may be set to be skipped.

In step 823, the first TAS 811 may return a request message to the CSCF 802 after the necessary processing.

At step 824, the CSCF 802 may confirm that the address of the signaling gateway is included in the recipient address and route the call to the signaling gateway 803. [

In step 825, the E-SGW 803 may request the E-MGW 804 to allocate media relay resources. Here, the E-SGW 803 can change the media information of the received SDP packet to the media information of the media relay resource allocated by the media gateway. According to an embodiment, the media gateway may perform media conversion according to the media information.

In step 826, the E-SGW 803 removes the address of the signaling gateway from the recipient address, sets the remaining recipient telephone number as the recipient address, and changes the originator address to the corporate Internet telephone number of the VoLTE client 801, The call can be sent to the telephone exchange 805.

According to one embodiment, a method for providing a wired / wireless telephone integration service using a mobile communication terminal can maintain service subscriber information in a database of the E-SGW 803. [ According to one aspect of the present invention, the service subscriber information includes at least one of a mobile communication terminal telephone number of a mobile communication terminal subscribed to the enterprise wired and wireless telephone integration service, an Internet telephone exchange address corresponding to the mobile communication terminal telephone number, And may include the subscriber's corporate Internet telephone number. Accordingly, the subscriber's business Internet telephone number corresponding to the mobile communication terminal telephone number of the calling mobile communication terminal included in the sender address of the request message is identified by referring to the database, and the sender mobile telephone number included in the sender address The communication terminal telephone number can be changed to the identified corporate Internet telephone number.

In step 827, the Internet telephone exchange 805 may send the received request message to the recipient IBCF 806. [ That is, since the Internet telephone exchange receiving the call request message from the E-SGW operates as the enterprise terminal registered with the enterprise Internet telephone number, the E-SGW operates as the recipient telephone number A call connection procedure to the mobile station can be performed.

At step 828, the IBCF 806 may perform media relay resource allocation to the IBGF 807. [ That is, the IBCF can receive the request message, allocate the media resource to the IBGF, and replace the media information of the SDP packet with the information allocated from the IBGF.

At step 829, the IBCF 806 may send a modified request message to the CSCF 808. The request message may hold an SDP packet whose media information is changed to resource information of the IBGF allocated by the IBGF 807. [

In step 830, the CSCF 808 may forward the message via the receive trigger to the second TAS 809 where the user of the receiving VoLTE client is registered.

At step 831, the second TAS 809 may return the request message to the CSCF 808 after performing the necessary processing.

In step 832, the CSCF 808 may forward the request message to the recipient-side VoLTE client terminal 810.

At this time, the media 861, 862, and 863 can flow between the VoLTE terminals via the E-MGW 804 and the IBGF 807 through two times of relay.

9 is a flowchart illustrating a process in which a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment uses an address of a signaling gateway to originate a business Internet telephone number to another VoLTE client.

8, the subscriber of the enterprise wired / wireless telephone integrated service can send a call by combining the telephone number of the signaling gateway and the recipient telephone number at the receiver address.

At step 921, the terminal client 901 attempting to originate a corporate Internet telephone number may attempt to make a CS call connection to the 3G telephone network 902. The subscriber of the enterprise wired and wireless telephone integration service can combine the telephone number of the signaling gateway with the telephone number of the other party to receive the call. According to one embodiment, if the telephone number assigned to the E-SGW 903 is 010-0000-9999 and the recipient telephone number is 010-1234-1111, the recipient address can be 0100000999901012341111.

At step 922, the 3G telephone network 902 can look up the address of the signaling gateway of the recipient address and route the call to the signaling gateway 903. [

In step 923, the E-SGW 903 may request allocation of the media relay resource to the E-MGW 904. [ Here, the E-SGW 903 can change the media information of the received SDP packet to the media information of the media relay resource allocated by the media gateway. According to an embodiment, the media gateway may perform media conversion according to the media information.

In step 924, the E-SGW 903 removes the address of the signaling gateway from the recipient address, sets the remaining recipient telephone number as the recipient address, and changes the originator address to the corporate Internet telephone number of the VoLTE client 901, The call can be sent to the telephone exchange 905.

According to one embodiment, a method of providing a wired / wireless telephone integrated service using a mobile communication terminal can maintain service subscriber information in a database of the E-SGW 903. [ According to one aspect of the present invention, the service subscriber information includes at least one of a mobile communication terminal telephone number of a mobile communication terminal subscribed to the enterprise wired and wireless telephone integration service, an Internet telephone exchange address corresponding to the mobile communication terminal telephone number, And may include the subscriber's corporate Internet telephone number. Accordingly, the subscriber's business Internet telephone number corresponding to the mobile communication terminal telephone number of the calling mobile communication terminal included in the sender address of the request message is identified by referring to the database, and the sender mobile telephone number included in the sender address The communication terminal telephone number can be changed to the identified corporate Internet telephone number.

In step 925, the Internet telephone exchange 905 may send the received request message to the recipient IBCF 906. [ That is, since the Internet telephone exchange receiving the call request message from the E-SGW operates as the enterprise terminal registered with the enterprise Internet telephone number, the E-SGW operates as the recipient telephone number A call connection procedure to the mobile station can be performed.

At step 926, the IBCF 906 may perform media relay resource allocation to the IBGF 907. [ That is, the IBCF can receive the request message, allocate the media resource to the IBGF, and replace the media information of the SDP packet with the information allocated from the IBGF.

At step 927, the IBCF 906 may send a modified request message to the CSCF 908. The request message may hold an SDP packet in which the media information is changed to IBGF resource information allocated by the IBGF 907. [

At step 928, the CSCF 908 may forward the message via the receive trigger to the second TAS 809 for which the user of the receiving VoLTE client is registered.

In step 929, the second TAS 909 may return the request message to the CSCF 808 after performing the necessary processing.

In step 930, the CSCF 908 may forward the request message to the recipient VoLTE client terminal 910. [

At this time, the media 961, 962, and 963 can flow between the E-MGW 904 and the IBGF 907 through the two relay and the VoLTE terminals.

According to one embodiment, the caller's mobile communication terminal sending a call combining the recipient address with the signaling gateway telephone number and the recipient telephone number may allow the user to directly enter the signaling gateway telephone number into the dialer, The user can send a call by combining the signaling gateway telephone number in front of the recipient's telephone number when the user desires to send the call using the corporate Internet telephone number.

FIG. 10 is a diagram illustrating a modified form of a procedure for a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an embodiment to originate a business Internet telephone number to another VoLTE client using an address of a signaling gateway FIG.

Referring to FIG. 10, a modified form of the process of transmitting to other VoLTE clients in the same network is that the VoLTE client 1001 is connected to the first CSCF 1002, the first TAS 1011, the signaling gateway 1003, The second CSCF 1008 and the second TAS 1009 may be connected to another VoLTE client 1010 via the Internet 1004, the Internet telephone exchange 1005, the IBCF 1006, the IBGF 1007, the second CSCF 1008,

In step 1021, the caller VoLTE client 1001 may exchange data signals with the signaling gateway 1003 via a separate data channel. When the caller VoLTE client 1001 makes a call, it can signal the signaling gateway 1003 that it will place a call to the recipient VoLTE client 1010 with the caller's corporate Internet telephone number before the call is connected. The message may include a corporate Internet telephone number and an incoming telephone number itself, or a simple flag with an incoming telephone number that simply attempts to dial the second telephone number as the calling number.

In step 1022, the VoLTE client 1001 may send a VoLTE service request message (INVITE) to the CSCF 1002. According to one aspect, the sender address of the request message may be the mobile communication terminal telephone number of the VoLTE client 1001 and the recipient address may be the telephone number of the signaling gateway 1003. [

In step 1023, the CSCF 1002 may acknowledge the sender address and send a request message to the corresponding first TAS 1011 via an origination trigger. At this time, when triggering the call to the CSCF 1002, step 1022 may be set to be skipped if the recipient address is the signaling gateway telephone number.

In step 1024, the first TAS 1011 may return a request message to the required CSCF 1002 after processing.

In step 1025, the CSCF 1002 can verify the recipient address of the request message, route the call to the signaling gateway by seeing that the signaling gateway telephone number is included.

In step 1026, the E-SGW 1003 may request the allocation of the media relay resource to the E-MGW 1004. Here, the E-SGW 1003 can change the media information of the received SDP packet to the media information of the media relay resource allocated by the media gateway. According to an embodiment, the media gateway may perform media conversion according to the media information.

In step 1027, the E-SGW 1003 removes the E-SGW telephone number from the recipient address and utilizes the already received signal on the data channel of step 1021 to send the recipient address to the VoLTE client 1010 Telephone number, and the caller address can be sent to the Internet telephone exchange (IP-PBX) 1005 as the business Internet telephone number of the VoLTE client 1001. [

In step 1028, the Internet telephone exchange 1005 may send the transmitted request message to the recipient IBCF 1006. [ That is, since the Internet telephone exchange receiving the call request message from the E-SGW operates as the enterprise terminal registered with the enterprise Internet telephone number, the E-SGW operates as the recipient telephone number A call connection procedure to the mobile station can be performed.

In step 1029, the IBCF 1006 may perform media relay resource allocation to the IBGF 1007. That is, the IBCF can receive the request message, allocate the media resource to the IBGF, and replace the media information of the SDP packet with the information allocated from the IBGF.

At step 1030, the IBCF 1006 may send a modified request message to the CSCF 1008. The request message may hold an SDP packet in which the media information is changed to IBGF resource information allocated by the IBGF 1007. [

In step 1031, the CSCF 1008 may forward the message via the receive trigger to the second TAS 1009 where the user of the receiving VoLTE client is registered.

At step 1032, the second TAS 1009 may return a request message to the CSCF 1008 after performing the necessary processing.

In step 1033, the CSCF 1008 may forward the request message to the VoLTE client terminal 1010 on the receiver side.

At this time, the media 1061, 1062, and 1063 can flow between the E-MGW 1004 and the IBGF 1007 through the two relay and the VoLTE terminals.

11 is a view for explaining a modified form of the process of making a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment to originate a business Internet phone number to another VoLTE client using an address of a signaling gateway FIG.

11, a modified form of the process of VoLTE clients registered in the 3G network providing wired / wireless telephone integration service to other VoLTE clients in the same network is that the VoLTE client 1101 is connected to the 3G telephone network 1102, 1 TAS 1111, a signaling gateway 1103, a media gateway 1104, an Internet telephone exchange 1105, an IBCF 1106, an IBGF 1107, a CSCF 1108, a second TAS 1109, And may be coupled to the client 1110.

In step 1121, the originator VoLTE client 1101 may exchange data signals with the signaling gateway 1103 over a separate data channel. When the caller VoLTE client 1101 makes a call, it can signal the signaling gateway 1103 that it will place a call to the recipient VoLTE client 1110 with the caller's corporate Internet telephone number before the call is connected.

In step 1122, the terminal client 1101 may attempt to establish a CS call to the 3G telephone network 1102. [ According to one aspect, the sender address of the request message may be the mobile communication terminal telephone number of the VoLTE client 1101 and the recipient address may be the telephone number of the signaling gateway 1103. [

In step 1123, the 3G telephone network 1102 can verify the recipient address of the request message, route the call to the signaling gateway by seeing that the signaling gateway telephone number is included.

In step 1124, the E-SGW 1103 may request the allocation of the media relay resource to the E-MGW 1104. Here, the E-SGW 1103 can change the media information of the received SDP packet to media information of the media relay resource allocated by the media gateway. According to an embodiment, the media gateway may perform media conversion according to the media information.

In step 1125, the E-SGW 1103 removes the E-SGW phone number from the recipient address and utilizes the already received signal on the data channel of step 1121 to send the recipient address to the VoLTE client 1110 Phone number, and the sender address can be used as a business Internet telephone number of the VoLTE client 1101 to send a call to an Internet telephone exchange (IP-PBX) 1105.

In step 1126, the Internet telephone exchange 1105 may send the received request message to the recipient IBCF 1106. [ That is, since the Internet telephone exchange receiving the call request message from the E-SGW operates as the enterprise terminal registered with the enterprise Internet telephone number, the E-SGW operates as the recipient telephone number A call connection procedure to the mobile station can be performed.

In step 1127, the IBCF 1106 may perform media relay resource allocation to the IBGF 1107. [ That is, the IBCF can receive the request message, allocate the media resource to the IBGF, and replace the media information of the SDP packet with the information allocated from the IBGF.

At step 1128, the IBCF 1106 may send a modified request message to the CSCF 1108. The request message may hold an SDP packet in which the media information is changed to IBGF resource information allocated by the IBGF 1107. [

In step 1129, the CSCF 1108 may forward the message via a receive trigger to a second TAS 1109 where the user of the receiving VoLTE client is registered.

In step 1130, the second TAS 1109 may return a request message to the CSCF 1108 after performing the necessary processing.

In step 1131, the CSCF 1108 may forward the request message to the recipient-side VoLTE client terminal 1110.

At this time, the media 1161, 1162, and 1163 may flow between the E-MGW 1104 and the IBGF 1107 through the two relay and the VoLTE terminals.

12 is a flowchart illustrating a process of receiving a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an exemplary embodiment of the present invention with a corporate Internet telephone number.

12 is a flowchart for explaining a process in which a user outside the network (for example, a PSTN user) originates a call to a corporate Internet telephone number of a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an exemplary embodiment .

Referring to FIG. 12, a procedure for a user outside a network to originate a call to a corporate Internet telephone number of a VoLTE client registered in a VoLTE network for providing a wired / wireless telephone integration service may be described as a process in which a user is connected to the Internet telephone exchange 1202, May be connected to the VoLTE client 1207 connected to the enterprise Internet telephone number through the Internet 1203, the media gateway 1204, the CSCF 1205, and the TAS 1206. [

At step 1230, the non-network telephone number user 1201 may send a request message to the recipient Internet telephone exchange 1202. [ At this time, the sender mobile communication terminal telephone number P1 of the request message may be stored in the sender address (From) of the request message, and the recipient enterprise Internet telephone number (E2) may be stored in the receiver address To.

In step 1231, the Internet telephone exchange 1202 may transmit the received request message to the E-SGW 1203 on the receiver side.

In step 1232, the E-SGW 1203 may request the allocation of media relay resources to the E-MGW 1204.

In step 1233, the E-SGW 1203 may change the request message sent to the CSCF 1205 and transmit it. That is, the recipient address To can be changed to the mobile communication terminal telephone number P2 of the user subscribing to the enterprise wired and wireless telephone integration service corresponding to the enterprise internet telephone number E2 and transmitted.

In step 1234, the CSCF 1205 confirms the received request message and can perform call reception processing to the TAS 1206 in which the mobile communication terminal telephone number P2 is registered.

In step 1235, the CSCF 1205 may forward the request message to the VoLTE client terminal 1207 of the mobile communication terminal telephone number P2.

At this time, the media 1251 and 1252 may flow between the VoLTE terminals through the relay of the E-MGW.

FIG. 13 is a flowchart illustrating a modified form of a process of receiving a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an exemplary embodiment of the present invention with a corporate Internet telephone number.

Referring to FIG. 13, a procedure for a VoLTE client outside the network to originate an enterprise Internet telephone number of a VoLTE client registered in a VoLTE network that provides a wired / wireless telephone integration service includes a procedure in which a VoLTE client 1301 is connected to an Internet telephone exchange 1302, May be connected to the VoLTE client 1308 connected to the enterprise Internet telephone number through the signaling gateway 1303, the media gateway 1304, the CSCF 1306, and the TAS 1307. [

According to an embodiment, the call processing in FIG. 14 can be exchanged between the VoLTE client terminal 1308 and the E-SGW 1303 via a separate data channel.

In step 1321, the non-network telephone number user 1301 may send a request message to the recipient Internet telephone exchange 1302. [ At this time, the sender mobile communication terminal telephone number P1 of the request message may be stored in the sender address (From) of the request message, and the recipient enterprise Internet telephone number (E2) may be stored in the receiver address To.

In step 1322, the Internet telephone exchange 1302 may transmit the received request message to the E-SGW 1303 on the receiver side.

In step 1323, the E-SGW 1303 may send a signal to the recipient VoLTE client 1308 to inform the enterprise Internet telephone number that a call will be received. For example, the alternate dialer of the terminal of the VoLTE client 1308 and the E-SGW 1303 can transmit signals through a TCP connection. As another example, the E-SGW 1303 may transmit a signal using a push message. When the terminal of the VoLTE client 1308 receives a telephone call from the VoLTE network, even though the recipient address is the telephone number of the mobile communication terminal, the terminal knows in advance that it is the telephone received by the enterprise Internet telephone number through the data channel. Or hearing. &Lt; / RTI &gt; This approach is also available for all other call recipients, as is the case for 2G / 3G telephone networks.

In step 1324, the E-SGW 1303 may request the allocation of the media relay resource to the E-MGW 1304.

In step 1325, the E-SGW 1303 may change the request message sent to the CSCF 1306 and transmit it. That is, the recipient address To can be changed to the mobile communication terminal telephone number P2 of the user subscribing to the enterprise wired and wireless telephone integration service corresponding to the enterprise internet telephone number E2 and transmitted.

In step 1326, the CSCF 1305 confirms the received request message and can perform call reception processing to the TAS 1307 in which the mobile communication terminal telephone number P2 is registered.

At step 1327, the TAS 1307 may return to the CSCF 1306 after processing necessary for the request message.

In step 1328, the CSCF 1306 may forward the request message to the VoLTE client terminal 1308 of the mobile communication terminal telephone number P2.

At this time, the media 1361 and 1362 may flow between the VoLTE terminals through the relay of the E-MGW.

14 is a diagram for explaining a configuration of a signaling gateway of a VoLTE network for providing a wired / wireless telephone integrated service according to an embodiment.

Referring to FIG. 14, a signaling gateway (E-SGW) 1400 according to an exemplary embodiment may include a receiver, a controller, and a transmitter.

The receiving unit 1401 may receive a request message from an Internet telephone exchange or a CSCF (Call Session Control Function) device. According to one embodiment, the receiver of the signaling gateway may be able to route outgoing calls from the CSCF. According to another embodiment, the receiver of the signaling gateway may receive a data signal on a separate data channel from the VoLTE client terminal. Where the data signal may be a signal over a TCP connection and may be received as a push message.

The control unit 1402 may control the request message. According to one aspect of the present invention, when the signaling gateway is a gateway on the caller side, an address of a signaling gateway is removed from a receiver address of the received request message, a remaining receiver's telephone number is set as a receiver address, You can change it to a number. According to another party, when a signal is received via a separate data channel, the E-SGW telephone number is removed from the recipient address and the recipient address is received using the already received signal via the data channel, And the sender address can be changed to the corporate Internet telephone number of the originating VoLTE client. If the signaling gateway is a gateway on the receiver side, the recipient address (To) of the request message may be changed to a recipient mobile communication terminal telephone number.

The transmitting unit 1403 can transmit the changed request message to the corresponding Internet telephone exchange or the corresponding CSCF. Also, the transmitting unit can transmit information such as call notification to the terminal.

According to an embodiment, the control unit may change the media information of the SDP packet to the media information of the media relay resource allocated by the media gateway.

The transmitting unit may transmit the changed SDP packet to the Internet telephone exchange.

According to one embodiment, the signaling gateway 1400 may further include a database 1404 for storing service subscriber information.

According to one embodiment, the service subscriber information may include a mobile communication terminal telephone number of a subscriber mobile communication terminal, an address of an Internet telephone exchange corresponding to the mobile communication terminal telephone number, and authentication information for the Internet telephone exchange have. The control unit identifies the subscriber ID corresponding to the mobile communication terminal telephone number of the calling mobile communication terminal included in the sender address of the request message with reference to the authentication information stored in the database, The mobile communication terminal of the calling mobile communication terminal can change the telephone number of the mobile communication terminal to the identified subscriber ID.

According to one embodiment, the service subscriber information may include a mobile communication terminal telephone number of a subscriber mobile communication terminal, an Internet telephone exchange address corresponding to the mobile communication terminal telephone number, and an Internet telephone number for a subscriber enterprise. At this time, the controller identifies the subscriber enterprise Internet telephone number corresponding to the mobile communication terminal telephone number of the calling mobile communication terminal included in the sender address of the request message, referring to the database, and stores the same in the sender address of the request message The mobile communication terminal phone number of the originating mobile communication terminal can be changed to the identified subscriber enterprise Internet telephone number.

15 is a diagram for explaining a configuration of a VoLTE network for providing a wired / wireless telephone integration service according to an embodiment.

15, a VoLTE network for providing a wired / wireless telephone integration service according to an embodiment includes service subscribers 1591 and 1592, an enterprise communication application server (E-TAS) 1510, a database 1511, (HSS) 1520, a CSCF 1530, a communication application server (TAS) 1540 and an IBCF 1550 and an IBGF 1560.

According to one embodiment, an E-TAS 1510 may be added to the VoLTE network structure of FIG. Here, E-TAS is an enterprise communication application server, and it is a device that performs TAS function to support a new wired and wireless telephone integration service. The E-TAS 1510 can store the information of the subscriber of the wire / wireless telephone integration service in the database 1511.

16 is a diagram for explaining a TAS through which a VoLTE client terminal according to an embodiment connects a call.

Referring to FIG. 16, the VoLTE client terminal may perform the TAS selection logic 1610 through a receiver address. If the receiver address includes a delimiter or if the recipient address includes the telephone number of the E-TAS, it connects to the E-TAS 1620 for providing a wired and wireless telephone integration service and moves through the database 1621 The enterprise Internet telephone number corresponding to the communication terminal telephone number can be searched. If the recipient address does not contain a delimiter or E-TAS telephone number, it can be connected to a generic TAS (1630).

In the following description, it is assumed that the CSCF permits an implicit regi of the IMS standard and sends a message to be transmitted to TAS and E-TAS separately, without assuming the method of FIG.

According to one embodiment, the E-TAS database 1621 may have a mobile communication terminal telephone number of a calling user and an enterprise Internet telephone number. In the case of a subscriber having an extension number corresponding to a corporate Internet telephone number, the database 1621 may also store an extension number as shown in Table 2 below.

17 is a flowchart illustrating a process of registering a VoLTE client according to an embodiment in a VoLTE network that provides an enterprise wired and wireless telephone integration service (eFMC).

17, a process of registering a VoLTE client in a VoLTE network for providing a wired / wireless telephone integration service includes the steps of a VoLTE client 1711, a CSCF 1712, a subscriber information management server (HSS) 1713, a TAS 1714, Can be registered through the E-TAS 1715.

Information indicating that a user having the calling mobile communication terminal telephone number P1 (for example, 010-1234-1111) is subscribed to the eFMC through the provisioning can be stored in the subscriber information management server (HSS) 1713 have.

Also, the telephone number of the user's mobile communication terminal P1, the enterprise internet telephone number E1, and the like can be registered in the database of the E-TAS 1715 through the authorization setting, as shown in Table 2 above. If the subscriber has an extension number corresponding to the enterprise Internet telephone number, the database may further store the extension number.

In step 1710, the VoLTE client 1711 may perform the registration process with the CSCF 1712.

According to one embodiment, the E-TAS may request the CSCF after the registration (third party registration) is performed based on the CSCF and the mobile communication terminal telephone number according to the standard, and may receive the corporate number. At this time, the database of E-TAS may not have a business Internet telephone number. However, in this case, the E-TAS can not set the rights of various additional functions (for example, call forwarding) through the E-TAS until the user turns on the terminal and registers in the CSCF. It is desirable to have a database.

In step 1720, the CSCF 1712 device may request the HSS 1713 to confirm the service the user of the VoLTE client subscribed to. According to one embodiment, in the CSCF 1712, the subscriber information management server (HSS) may request the subscriber information management server (HSS) to confirm whether the telephone number of the mobile communication terminal of the VoLTE client is a subscriber of a wired / wireless telephone integrated service for enterprise use.

In step 1730, the HSS 1713 may acknowledge the subscription of the user's service and forward it to the CSCF 1712. At this time, the CSCF can receive information for the wire / wireless telephone integration service from the HSS, and the CSCF can operate as follows for the subscriber of the wire / wireless telephone integration service.

1. In the case of origination trigger, CSCF sends trigger message to E-TAS when the receiver address includes delimiters.

2. In case of receiving trigger, CSCF sends trigger message to general TAS when recipient address is mobile phone number and transmits trigger message to E-TAS when recipient address is corporate Internet phone number.

According to one embodiment, the CSCF 1712 may perform third party registration to both the general TAS 1714 and the enterprise TAS 1715. That is, when the e-FMC service is not subscribed, the CSCF performs third party registration to the TAS 1714, and when subscribing to the eFMC service, performs location registration delivery to both the TAS 1714 and the E-TAS 1715 .

In step 1740, the CSCF 1712 confirming the subscription of the service may perform a third party registration to the TAS 1714 for the call service. Here, the 3rd party registration to the TAS can be performed in the same manner as the existing VoLTE service.

In step 1750, the CSCF 1712 may perform a third party registration to the E-TAS 1715 for the eFMC service.

FIG. 18 is a flowchart illustrating a process in which a VoLTE client registered in a VoLTE network for providing a wired / wireless telephone integration service according to an embodiment transmits a business Internet telephone number to another VoLTE client in the same network.

Referring to FIG. 18, the process of originating VoLTE clients in other VoLTE clients in the same network is performed when a VoLTE client 1811 is connected to another VoLTE client 1815 via CSCF 1812, E-TAS 1813, and TAS 1814 .

At step 1810, a VoLTE user may send a VoLTE service request message (INVITE) to the CSCF 1812 to originate a call to the other VoLTE client 1815 in the network with a corporate Internet telephone number. At this time, the eFMC service subscriber can use a method of attaching a delimiter (for example, precede the telephone number with #) to the telephone number of the other party to receive the telephone call. In this way, the VoLTE client 1811 can store the P1 in the sender's address (From) of the request message, send a request message to the CSCF 1812 with the delimiter attached to the receiver's information (To)

According to one embodiment, the request message from the VoLTE client 1811 to the CSCF 1812 is as follows. In this case, the telephone number of the originator mobile communication terminal is 010-1234-1111, the enterprise internet telephone number is 070-6774-6313, the recipient mobile communication terminal telephone number is 010-5678-9999, and the delimiter is #.

Request tel: * # 01056789999; phone-context = + 82 SIP / 2.0

To: <tel: * # 01056789999; phone-context = + 82>

From: <sip: 01012341111@kt.com>

P-Asserted-Identity: <sip: 01012341111@kt.com>

In Fig. 18, Expression is expressed as From: P1, To: # P2 for simplicity.

In step 1820, the CSCF 1812 may determine that the delimiter is attached to the recipient information via the origination trigger and send the message to the E-TAS 1813 of the VoLTE network.

According to an embodiment of the present invention, it is determined whether or not predetermined classifier information is included in receiver information (To address) of a request message received from the mobile communication terminal, and if predetermined classifier information is included in receiver information (To address) If the classifier information is included, the E-TAS 1813 can transmit the corresponding message.

In step 1830, the E-TAS 1813 changes the mobile communication terminal telephone number P1 of the calling party address to the corresponding corporate Internet telephone number E1 through the database, removes the separator from the recipient information, 1812, &lt; / RTI &gt;

The request message from the E-TAS 1813 to the CSCF 1812 is as follows.

Request tel: +821056789999 SIP / 2.0

To: <tel: +821056789999>

From: <sip: 07067746313@kt.com>

P-Asserted-Identity: <sip: 07067746313@kt.com>

In step 1840, CSCF 1812 may send a receive trigger message to generic TAS 1814. At this time, the CSCF confirms that the VoLTE client of the receiver is a user in the network that is not subscribed to the enterprise wired and wireless telephone integration service, and can transmit the reception trigger message to the TAS.

At step 1850, the TAS 1814 may deliver the message to the required post-processing CSCF 1812.

In step 1860, the CSCF 1812 may perform a call connection with the peer VoLTE client 1815.

Here, in the case of a call connection in the network, the media 1891 need not be converted.

FIG. 19 illustrates a process in which a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integrated service according to an embodiment transmits an enterprise Internet telephone number to another VoLTE client in the same network using an address of a corporate communication application server Fig.

The VoLTE client 1901 is connected to another VoLTE client 1905 via the CSCF 1902, the E-TAS 1903, and the TAS 1904 in order to originate a call to another VoLTE client in the same network .

In step 1921, a VoLTE user may send a VoLTE service request message (INVITE) to the CSCF 1902 to originate a call to the other VoLTE client 1905 in the network with a corporate Internet telephone number. At this time, the eFMC service subscriber can send the call by combining the E-TAS telephone number and the telephone number of the actual recipient at the recipient address. For example, if the E-TAS telephone number is 010-0000-9999 and the recipient's telephone number is 010-1234-1111, the recipient address will be 0100000999901012341111.

In Fig. 19, Expression is expressed as From: P1, To: E-TAS + P2 for simplicity.

In step 1922, the CSCF 1902 may send a request message to the E-TAS 1903 of the VoLTE network upon receipt of the E-TAS phone number through the originating trigger.

In step 1923, the E-TAS 1903 changes the telephone number P1 of the mobile communication terminal of the sender address to the corresponding enterprise Internet telephone number E1 through the database and sets the E-TAS telephone number And may forward the message to CSCF 1902.

In step 1924, the CSCF 1902 may send a message to the general TAS 1904 via a receive trigger. At this time, the CSCF confirms that the VoLTE client of the receiver is a user in the network that is not subscribed to the enterprise wired and wireless telephone integration service, and can transmit the reception trigger message to the TAS.

In step 1925, the TAS 1904 may deliver the message to the required post-processing CSCF 1902.

In step 1926, the CSCF 1902 may perform a call connection with the peer VoLTE client 1905.

Here, in the case of a call connection in the network, the media 1961 need not be converted.

20 is a flowchart for explaining a process in which a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment transmits a business Internet telephone number to another VoLTE client using an address of a corporate communication application server .

As in the case of FIG. 19, the subscriber of the enterprise wired / wireless telephone integrated service can transmit the call by combining the E-TAS telephone number and the recipient telephone number at the recipient address.

In step 2021, the VoLTE client 2001 to send out the enterprise Internet telephone number can transmit a VoLTE service request message (INVITE) to the 3G telephone network 2002. [ A subscriber of the enterprise wired and wireless telephone integration service can add the E-TAS telephone number to the telephone number of the other party to receive the call. According to one embodiment, if the telephone number assigned to the E-TAS 2003 is 010-0000-9999 and the recipient telephone number is 010-1234-1111, the recipient address can be 0100000999901012341111.

In step 2022, the 3G telephone network 2002 may view the E-TAS telephone number of the recipient address and route the call to the MGCF 2003 with the corresponding number.

At this time, the MGCF 2003 may request the MGW 2004 to allocate media relay resources. Here, the MGCF 2003 may change the media information of the received SDP packet to the media information of the media relay resource allocated by the media gateway. According to an embodiment, the media gateway may perform media conversion according to the media information.

In step 2023, the MGCF 2003 may add the E-TAS phone number and the recipient phone number to the recipient address, and send the call using the originator mobile communication terminal phone number as the sender address.

In step 2024, the CSCF 2005 may send a message to the E-TAS 2006 via a receive trigger.

In step 2025, the E-TAS 2006 removes the E-TAS telephone number from the recipient address, sets the remaining recipient telephone number as the recipient address, changes the mobile communication terminal telephone number of the sender address to the corporate Internet telephone number And may return a request message to the CSCF 2005.

In step 2026, the CSCF 1902 may forward the changed request message to the TAS 2007.

In step 2027, the TAS 2007 may return to the CSCF 2005 after performing the necessary processing for the received request message.

In step 2028, the CSCF 2005 may perform a call connection with the peer VoLTE client 2008.

At this time, the media 2061 and 2062 can flow between the VoLTE terminals through the relay of the MGW 2004. [

In FIG. 19 and FIG. 20, the VoLTE client terminal transmits the recipient address together with the recipient telephone number to the E-SGW telephone number, so that the user can directly input the E-SGW telephone number to the dialer, May dial an E-SGW phone number automatically in front of the recipient's phone number if they want to send it to a corporate Internet phone number.

FIG. 21 illustrates a modified form of a process of making a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an embodiment to a VoLTE client using a corporate Internet telephone number using an address of a corporate communication application server Fig.

21, the VoLTE client 2101 transmits the VoLTE client 2101 via the CSCF 2102, the E-TAS 2103, and the TAS 2104 to another VoLTE client 2101 via the enterprise Internet telephone number. And may be connected to the client 2105.

In step 2121, the caller VoLTE client 2101 can exchange data signals with the enterprise communication application server (E-TAS) 2103 via a separate data channel. When the caller VoLTE client 2101 makes a call, it may send a signal to the communications application server 2103 that the call will be made to the recipient VoLTE client 2105 with the caller's corporate Internet telephone number before the call is connected.

In step 2122, the VoLTE client 2101 may send a VoLTE service request message (INVITE) to the CSCF 2102. According to one aspect of the present invention, the sender address of the request message may be a mobile communication terminal telephone number of the VoLTE client 2101 and the recipient address may be a telephone number of the E-TAS 2103. [

In step 2123, the CSCF 2102 may acknowledge the sender address and send a request message to the corresponding E-TAS 2103 via an origination trigger.

In step 2124, the E-TAS 2103 uses the already received signal to change the recipient address to the telephone number of the VoLTE client 2105 and the sender address to the corporate Internet telephone number of the VoLTE client 2101, Lt; RTI ID = 0.0 &gt; 2102 &lt; / RTI &gt;

In step 2125, the CSCF 2102 may send a request message to the TAS 2104 via a receive trigger.

In step 2126, the TAS 2104 may return the request message to the CSCF 2102 after the necessary processing.

In step 2127, the CSCF 2102 may forward the request message to the recipient-side VoLTE client terminal 2105.

At this time, the media (2161) does not need to be converted for the call connection in the network.

22 illustrates a modified form of a process of transmitting a VoLTE client registered in a 3G network providing a wired / wireless telephone integration service according to an embodiment to another VoLTE client using a corporate Internet phone number using an address of a corporate communication application server Fig.

21, the subscriber of the enterprise wired / wireless telephone integrated service can send the call by combining the E-TAS telephone number and the recipient telephone number at the recipient address.

In step 2221, the caller VoLTE client 2201 can exchange data signals with the enterprise communication application server (E-TAS) 2206 via a separate data channel. The originator VoLTE client 2201 may send a signal to the E-TAS 2206 that it will originate a call to the recipient VoLTE client 2208 with the calling enterprise Internet telephone number while preparing to speak.

In step 2222, the terminal client 2201 that is trying to originate a corporate Internet telephone number may attempt to make a CS call connection to the 3G telephone network 2202. [ A subscriber of the enterprise wired and wireless telephone integration service can add the E-TAS telephone number to the telephone number of the other party to receive the call. According to one embodiment, the recipient address of the request message may be an E-TAS telephone number, and the sender address may be a telephone number of an originating mobile communication terminal.

At step 2223, the 3G telephone network 2202 can look up the E-TAS telephone number of the recipient address and route the call to the corresponding numbered MGCF 2203.

At this time, the MGCF 2203 may request the MGW 2204 to allocate media relay resources. Here, the MGCF 2203 can change the media information of the received SDP packet to the media information of the media relay resource allocated by the media gateway. According to an embodiment, the media gateway may perform media conversion according to the media information.

In step 2224, the MGCF 2203 may send the call to the CSCF 2205 with the E-TAS telephone number as the recipient address and the originator mobile communication terminal telephone number as the sender address.

In step 2225, the CSCF 2205 may send a message to the E-TAS 1906 via the receive trigger.

In step 2226, the E-TAS 2206 removes the E-TAS telephone number from the recipient address, uses the previously received message to make the recipient telephone number the recipient address, and the mobile communication terminal telephone number of the sender address To the enterprise Internet telephone number, and return the request message to the CSCF 2205. [

In step 2227, the CSCF 2202 may forward the changed request message to the TAS 2207.

In step 2228, the TAS 2207 may return to the CSCF 2205 after performing the necessary processing for the received request message.

In step 2229, the CSCF 2205 may perform a call connection with the peer VoLTE client 2208.

At this time, the media 2261 and 2262 may flow between the VoLTE terminals through the relay of the MGW 2204.

FIG. 23 illustrates a process in which a user subscribed to the same wire / wireless telephone integration service transmits a telephone number of a mobile communication terminal to a business Internet telephone number of a VoLTE client registered in a VoLTE network providing a wire / wireless telephone integration service according to an exemplary embodiment Fig.

Referring to FIG. 23, the process of making a call from a non-network user to a mobile communication terminal telephone number of a VoLTE client registered in a VoLTE network providing a wired / wireless integrated service includes IBCF 2312, IBGF 2313, CSCF 2314, And may be connected to a VoLTE client using wired / wireless integrated services via E-TAS 2315.

In step 2310, the out-of-network caller of the VoLTE network providing wired / wireless integrated services may send an INVITE message to the interworking equipment IBCF. The connection procedure at the caller side is omitted because it is the same as the general call connection procedure (2399). At this time, the sender can confirm that the receiver is not present in the same network, and send an INVITE message to the interworking equipment IBCF 2312. At this time, the INVITE message may store the calling mobile communication terminal telephone number P1 in the sender address and store the enterprise telephone number E2 of the recipient mobile communication terminal in the recipient information.

In step 2320, the IBCF 2312 may request allocation of a media relay resource to the IBGF 2313 for media processing for communication with the external network.

In step 2330, the IBCF 2313 may send an INVITE message to the CSCF 2314. At this time, the INVITE message may be a phone number (P1) of a caller's mobile communication terminal and the recipient information may be a business telephone number (E2) of a recipient's mobile communication terminal.

In step 2340, CSCF 2314 may forward the message to E-TAS 2315 via an incoming trigger. At this time, the CSCF can find the corresponding E-TAS by viewing the recipient information of the INVITE message.

In step 2350, the E-TAS 2315 may send a request message to the CSCF that changes the recipient address to the recipient's mobile communication terminal phone number.

At step 2360, the CSCF 2314 may connect the call with the VoLTE client of the recipient.

According to one embodiment, the media is relayed via the IBGF 2313 between the recipient and the sender. That is, the INVITE message in the step 2310 has the SDP packet 2391 before the media processing, and the INVITE message in the step 2330 is the SDP packet 2392 changed to the media information of the media relay resource allocated in the IBGF. Lt; / RTI &gt;

FIG. 24 is a flowchart for explaining a modified form of a process of receiving a VoLTE client registered in a VoLTE network providing a wired / wireless telephone integration service according to an embodiment of the present invention with a corporate Internet telephone number.

Referring to FIG. 24, a modified form of the process of transmitting to the telephone number of a mobile communication terminal of a VoLTE client registered in a VoLTE network for providing wired / wireless integrated services includes IBCF 2402, IBGF 2403, CSCF 2404, And may be connected to a VoLTE client using wired / wireless integrated services via E-TAS 2405.

In step 2421, the out-of-network caller of the VoLTE network providing wired / wireless integrated services may send an INVITE message to the interworking equipment IBCF 2402. The connection procedure at the caller side is the same as the general call connection procedure (2490). At this time, on the caller side, the receiver can confirm that the user is not present in the same network, and send the INVITE message to the interworking equipment IBCF 2402. At this time, the INVITE message may store the calling mobile communication terminal telephone number P1 in the sender address and store the recipient enterprise Internet telephone number E2 in the recipient information.

In step 2422, the IBCF 2402 may request the allocation of media relay resources to the IBGF 2403 for media processing for communication with the external network.

In step 2423, the IBCF 2402 may send an INVITE message to the CSCF 2404. In this case, the INVITE message may be a caller's mobile phone number (P1) and the recipient's information may be a corporate Internet phone number (E2) of the recipient.

In step 2424, the CSCF 2404 may forward the message to the E-TAS 2405 via an incoming trigger. At this time, the CSCF can find the corresponding TAS by viewing the recipient information of the INVITE message.

At step 2425, the E-TAS 2405 may send a signal to the VoLTE client 2406 indicating that the call has been received to the corporate Internet telephone number. For example, a VoLTE client terminal and a TAS may have a TCP connection. As another example, the TAS may send a signal via a push message.

At step 2426, the E-TAS 2405 may send a request message to the CSCF 2404 that changed the recipient address to the recipient's mobile telecommunication terminal telephone number.

At step 2427, the CSCF 2404 may connect the call with the VoLTE client 2406 of the recipient. At this time, when the VoLTE client terminal receives the telephone call from the network, although the receiver address is the mobile communication terminal telephone number, since it has been known that the call will be received through the signal received through the separate data channel in advance for the enterprise Internet telephone number, The user can be informed of the call received by the enterprise Internet telephone number through a visual or auditory method.

At this time, the media 2461 and 2462 may flow between the VoLTE terminals through the intermediation of the IBGF 2303. [

So far, all descriptions have been described as providing enterprise services. However, all of the functions described can be applied to other services that support two phone numbers, regardless of the type of number on one terminal. In this case, it can be implemented by interworking with other equipments, for example, VCC-AS, instead of E-TAS and E-SGW described above.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI &gt; or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (32)

A method of providing a wired / wireless telephone integrated service using a mobile communication terminal,
Receiving, at the signaling gateway, a call including a recipient address from a Call Session Control Function (CSCF) device;
Requesting allocation of a media relay resource to a media gateway; And
Changing media information of the SDP packet included in the call to media information of the media relay resource allocated by the media gateway;
Removing the address of the signaling gateway from the recipient address of the call and changing the recipient address to the recipient's phone number;
Changing an originator address of the call; And
Sending a call to which the address of the signaling gateway is removed and the sender address changed to an Internet telephone exchange corresponding to the changed sender address
Lt; / RTI &gt;
The CSCF apparatus comprises:
Receiving the call from a user terminal, routing the call to a signaling gateway according to an address of a signaling gateway included in the call,
The user terminal comprises:
Generating a recipient address by combining the recipient's telephone number and the telephone number of the signaling gateway, sending a call to the CSCF device including the recipient address and the originator address,
The Internet telephone exchange,
Transmits the received call to IBCF (Interconnection Border Control Function)
The IBCF comprises:
A media resource is allocated to an Interconnection Border Gateway Function (IBGF), media information of an SDP packet included in a call is changed to information allocated to the IBGF, and a call containing an SDP packet changed to IBGF resource information is transmitted through the CSCF To the receiver terminal. The method according to claim 1,
The Internet telephone exchange
At least one of IP-PBX or IP-Centrex
Wherein the method comprises the steps of: The method according to claim 1,
Maintaining the subscriber information of the enterprise wired and wireless telephone integration service in the database
The method comprising the steps of: The method of claim 3,
The subscriber information of the enterprise wired /
A telephone number of a mobile communication terminal that is subscribed to the enterprise wired and wireless telephone integration service, an address of the Internet telephone exchange corresponding to the telephone number of the mobile communication terminal, and authentication information for the Internet telephone exchange,
Wherein changing the caller address of the call comprises:
Identifying a subscriber ID corresponding to a caller mobile communication terminal telephone number included in a caller address of the call with reference to authentication information held in the database; And
Changing the telephone number of the mobile communication terminal of the originator mobile communication terminal included in the sender address of the call to the identified subscriber ID
The method comprising the steps of: The method of claim 3,
The subscriber information of the enterprise wired /
A telephone number of a mobile communication terminal of a user subscribed to the enterprise wire / wireless telephone integration service, an address of the Internet telephone exchange corresponding to the telephone number of the mobile communication terminal, and a business Internet telephone number of the subscriber of the wire /
Wherein changing the caller address of the call comprises:
Identifying a subscriber's enterprise Internet telephone number corresponding to a caller mobile communication terminal telephone number included in the sender address of the call with reference to the database; And
Changing the telephone number of the calling mobile communication terminal included in the sender address of the call to the identified corporate Internet telephone number
The method comprising the steps of: The method according to claim 1,
Determining if the address of the signaling gateway is included in the recipient address of the call in the CSCF device; And
Transmitting, by the CSCF device, the call to the signaling gateway if the address of the signaling gateway is included in the recipient address of the call in the CSCF device;
The method comprising the steps of: delete delete delete delete delete delete delete delete delete delete A method of providing a wired / wireless telephone integrated service using a mobile communication terminal,
Receiving, at an enterprise communication application server (E-TAS), a first request message from a Call Session Control Function (CSCF) device via an origination trigger, the first request message including a corporate communication application server address at a recipient address;
Removing the corporate communication application server address from the recipient address of the received first request message and changing the recipient address to the recipient's phone number; And
Changing the sender address of the received first request message to the internet telephone number of the sender enterprise
Transmitting, to the CSCF device, a second request message including a sender address changed to the sender enterprise Internet telephone number and a receiver address from which the enterprise communication application server address is removed
Lt; / RTI &gt;
The CSCF apparatus comprises:
Receive the call from a user terminal, route the call to the enterprise communications application server according to the enterprise communications application server address included in the call,
The user terminal comprises:
Generating a recipient address by combining the recipient's phone number with a corporate communications application server address, and sending a call to the CSCF device including the recipient address and the sender address. delete 18. The method of claim 17,
Maintaining service subscriber information in the database
The method comprising the steps of: 20. The method of claim 19,
The service subscriber information includes:
Including the telephone number of the mobile communication terminal of the user who subscribed to the wire / wireless telephone integration service and the Internet telephone number of the enterprise of the user subscribed to the wire / wireless telephone integration service
Wherein the method comprises the steps of: 21. The method of claim 20,
Wherein the changing of the sender address of the received first request message to the Internet telephone number of the sender enterprise comprises:
Identifying a corporate Internet telephone number of a service subscriber corresponding to a caller mobile communication terminal telephone number included in a sender address of the message, with reference to the database; And
Changing the telephone number of the calling mobile communication terminal included in the sender address of the first request message to the identified corporate Internet telephone number
The method comprising the steps of: delete delete delete delete delete delete delete delete delete delete A computer-readable recording medium storing a program for executing the method of any one of claims 1 to 6, 17, 19 to 21.

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