JP2013021453A - Communication control device and communication control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication control device and a communication control method, capable of dynamically selecting connection destination PDN depending on a user's use condition and a mobile communication network condition.SOLUTION: A conversion information DB 104 stores a conversion table in which a user's state and connection destination information are described. On receiving from mobile equipment a calling request at least including a user identifier, a user's state identification function unit 101 identifies a user's state according to the user identifier included in the calling request. On the basis of the conversion table stored in the conversion information DB 104, a connection destination conversion function unit 102 selects APN (connection destination information) corresponding to the user's state identified by the user identification function unit 101. The connection destination conversion function unit 102 then transmits a connection request to a PDN (connection destination network) on the basis of the APN selected by the APN conversion unit 102c.

Description

  The present invention relates to a communication control apparatus and a communication control method for transmitting a connection request to a connection destination network in response to a call request from a mobile device in a mobile communication network.

  As described in Non-Patent Document 1 and Non-Patent Document 2 below, connection processing to a PDN (Packet Data Network) using an APN (Access Point Name) is defined by the 3GPP standardization standard. Hereinafter, the procedure will be described with reference to FIG.

  As shown in FIG. 11, when a user sets an APN in a mobile device and performs communication using a mobile communication network, the mobile device sends a call request with a user identifier and an APN added to the mobile communication network (such as an exchange). Transmit (S11). The mobile communication network that has received the call request from the mobile device checks the user status or contract status (S12), and if the user is in a status that allows the call request, derives a registered APN (S13), Based on the APN, a PDN (Packet Data Network) which is a connection destination network is derived, and a connection request with a user identifier added is transmitted to the PDN authentication apparatus (S14).

  The PDN authenticating device that has received the connection request from the mobile communication network returns a response indicating that the connection is permitted to the mobile communication network (S16) if the user's call request is permitted (S15). The mobile communication network that has received the connection request response from the PDN authentication apparatus returns the call request response to the mobile device (S17). By such a procedure, connection processing can be performed on the PDN based on the APN set by the user.

  When the user performs communication using the mobile communication network without setting the APN in the mobile device, the mobile device transmits a call request not including the APN to the mobile communication network. If the mobile communication network that has received the call request from the mobile device is in a state that allows the user to make a call, the mobile communication network searches for a PDN that connects in advance with the default APN defined by the mobile communication network as a key, and sends the connection request to the PDN authentication device. Send it out. Also according to this procedure, connection processing to the PDN can be performed without setting the APN on the user side.

3GPP TS 23.060 General Packet Radio Service (GPRS); Service description; Stage 2 3GPP TS 29.060 General Packet Radio Service (GPRS); GPRS Tunneling Protocol (GTP) across the Gn and Gp interface

  However, according to the above prior art, the means for selecting the connection destination PDN based on the conditions specified by the mobile communication network is based on the default APN held by the mobile communication network, regardless of the APN set by the user in the mobile device. Thus, there is only a means for selecting a connection destination PDN, and there is a problem that it can only be fixedly set in advance.

  Therefore, in order to solve the above problems, the present invention can dynamically select a connection destination PDN according to the use conditions of the user and the conditions of the mobile communication network, regardless of the APN set by the user in the mobile device. An object is to provide a communication control device and a communication control method.

  In order to solve the above-described problems, a communication control apparatus according to the present invention provides a conversion table in which a user status and connection destination information are described in a communication control apparatus that requests connection to a connection destination network in response to a call request from a mobile device. Storing means for storing, receiving means for receiving a call request including at least a user identifier from a mobile device, and when a call request is received by the receiving means, based on the user identifier included in the call request Selection means for specifying the user status, conversion means for selecting connection destination information corresponding to the user status specified by the specification means based on the conversion table stored in the storage means, and selected by the conversion means Sending means for sending a connection request to the connection destination network based on the connection destination information.

  The communication control method of the present invention comprises a storage means for storing a conversion table describing user status and connection destination information, and is a communication control device that requests connection to a connection destination network in response to a call request from a mobile device. A communication control method, comprising: a receiving step for receiving a call request including at least a user identifier from a mobile device; and when a call request is received by the receiving step, based on a user identifier included in the call request A conversion step of specifying a user state and further selecting connection destination information corresponding to the specified user state based on a conversion table stored in the storage unit, and based on the connection destination information selected by the selection step And a sending step for sending a connection request to the connected network.

  According to the present invention, a conversion table describing a user state and connection destination information is stored, and when a call request including at least a user identifier is received from a mobile device, the user identifier included in the call request is received. The user status is specified based on the connection table, the connection destination information corresponding to the specified user status is selected based on the conversion table, and the connection request is transmitted to the connection destination network based on the selected connection destination information. To do. Thereby, a connection destination network can be dynamically selected based on a user state. Therefore, even when the APN that can be set on the mobile device side is limited, the diversity of selection of the connection destination network for the user can be expanded.

  Further, in the communication control apparatus of the present invention, the specifying means includes a user status reference means for referring to a database describing a user status for each user identifier, and a call request from a database referenced by the user status reference means. The user state specifying means for specifying the user state corresponding to the user identifier included in the information, and the conversion means refers to the conversion table in the storage means based on the user state specified by the user state specifying means The conversion information reference means, and when the conversion table is referred to by the conversion information reference means, the conversion information reference means may comprise a connection destination conversion means for selecting one connection destination information based on the conversion table and the user status. Good.

  According to this invention, the database describing the user status for each user identifier is referred to, the user status corresponding to the user identifier included in the outgoing call request is selected from the referenced database, and the selected user status is set. Based on the conversion table in the storage unit, when the conversion table is referred to, one connection destination information is selected based on the conversion table and the user state. Thereby, a connection destination network can be dynamically selected based on a user state. Therefore, even when the APN that can be set on the mobile device side is limited, the diversity of selection of the connection destination network for the user can be expanded.

  In the communication control device of the present invention, the conversion table describes a connection destination network in association with a priority in each of a plurality of user states, and the user state reference means includes a user from the conversion table. With reference to the state, the user state specifying means may specify one user state having a high priority.

  According to the present invention, it is possible to select one user state based on the priority order, and even when a plurality of user states are obtained, one user state can be specified, and an appropriate connection destination network Allows selection processing.

  In the communication control device of the present invention, the conversion table stored in the storage unit further describes the conversion target connection destination information to be converted, and the conversion unit specifies the specified user state. If the connection destination information is included in the transmission request from the mobile device prior to selecting the connection destination information corresponding to the connection destination information, the connection destination information included in the transmission request is described in the conversion table. If it is determined whether or not it matches the conversion target connection destination information, and if it is determined to match, the connection destination information corresponding to the specified user status is selected based on the conversion table, and it is determined that they do not match Alternatively, the connection destination information selection process based on the conversion table may not be performed.

  According to this invention, when the connection destination information included in the outgoing call request matches the conversion target connection destination information described in the conversion table, the connection destination information corresponding to the specified user state is selected. If it is determined that they do not match, the connection destination information selection process based on the conversion table is not performed. As a result, it is possible to perform connection destination network selection processing based on the connection destination information set on the mobile device side.

  In the communication control apparatus of the present invention, the conversion unit converts a part or all of the character string of the connection destination information included in the call request or adds a predetermined character string according to the description of the conversion table. Thus, new connection destination information may be generated.

  According to the present invention, according to the conversion table, a part or all of the connection destination information is converted, or a new character string is added to the connection destination information to generate new connection destination information. Conversion processing can be realized, and the variety of connection destination networks for the user can be expanded.

  According to the present invention, it is possible to dynamically select a connection destination network based on a user state. Therefore, even when the APN that can be set on the mobile device side is limited, the diversity of selection of the connection destination network for the user can be expanded.

It is the schematic diagram which showed the communication connection process in this embodiment. 3 is a block diagram illustrating functions of a communication control apparatus 100. FIG. 2 is a hardware configuration diagram of a communication control apparatus 100. FIG. 3 is a block diagram illustrating a detailed functional configuration of a user state specifying function unit 101. FIG. It is explanatory drawing which shows the specific example of a priority definition table. 3 is a block diagram showing a functional configuration of a connection destination conversion function unit 102. FIG. It is explanatory drawing which shows the specific example of a conversion table. It is a sequence diagram which shows the communication process between a mobile device, the communication control apparatus 100, and PDN. 4 is a flowchart showing processing in a user state specifying function unit 101 in the communication control apparatus 100. 3 is a flowchart showing processing in a connection destination conversion function unit 102 in the communication control apparatus 100. It is the sequence diagram which showed the communication connection process in a prior art.

  Embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a schematic diagram showing communication connection processing in the present embodiment. FIG. 1A is a schematic diagram showing communication connection processing when a connection destination PDN is derived in an SGSN (Serving GPRS Support Node), and FIG. 1B is a connection destination PDN in an MME (Mobility Management Entity). It is the schematic diagram which showed the communication connection process in the case of deriving.

  In FIG. 1A, when a connection request including an APN is transmitted from a UE (User Equipment: mobile device) to the SGSN, the SGSN converts the APN and derives a connection destination PDN. Then, the SGSN performs a connection process via a GGSN (Gateway GPRS Support Node) using the converted APN. Then, a communication connection between the UE and the PDN is established.

  Also, in FIG. 1B, when a connection request including an APN is transmitted from the UE to the MME, the MME converts this APN to derive a connection destination PDN, and an SGW (Serving SAE) Connection processing is performed using the converted APN via the Gateway) and the PGW (PDN SAE Gateway). Then, a communication connection between the UE and the PDN is established. Here, the communication path via PGW and SGW is established.

  In this manner, the SGSN or MME can derive the connection destination PDN from the APN, and can dynamically switch the PDN according to the user state.

  Furthermore, the communication control apparatus 100 which modeled the characteristic part of this embodiment in SGSN or MME is demonstrated. FIG. 2 is a block diagram illustrating functions of the communication control apparatus 100.

  As shown in FIG. 2, the communication control apparatus 100 includes a user state identification function unit 101 (reception unit, identification unit), a connection destination conversion function unit 102 (conversion unit, transmission unit), a user individual information DB 103, and conversion information. The DB 104 (storage means) is included.

  The communication control device 100 is composed of hardware such as a CPU, RAM, and ROM. FIG. 3 is a hardware configuration diagram of the communication control apparatus 100. As shown in FIG. 3, the communication control apparatus 100 shown in FIG. 2 physically includes a CPU 11, a RAM 12 and ROM 13 as main storage devices, a communication module 16 as a data transmission / reception device such as a network card, a hard disk, and the like. The computer system includes an auxiliary storage device 17 and the like. Each function described in FIG. 2 operates the communication module 16 under the control of the CPU 11 by loading predetermined computer software on the hardware such as the CPU 11 and the RAM 12 shown in FIG. This is realized by reading and writing data in the auxiliary storage device 17. Hereinafter, each functional block will be described based on the functional blocks shown in FIG.

  The user state specifying function unit 101 is a part that specifies a user state by referring to the user individual information DB 103. FIG. 4 is a block diagram showing a detailed functional configuration of the user state specifying function unit 101. As shown in FIG. 4, the user status specifying function unit 101 includes a call request receiving unit 101a (receiving unit), a user status reference unit 101b (user status reference unit), and a user status specifying unit 101c (user status specifying unit). It is configured to include.

  The transmission request receiving unit 101a is a part that receives a transmission request transmitted from a mobile device. This call request includes the user identifier and APN of the mobile device, but the APN may not be included depending on the setting on the mobile device side.

  The user status reference unit 101b refers to subscriber information stored in a subscriber information management server such as an HLR stored by a communication carrier, and a user corresponding to a user identifier based on the referred subscriber information. It is a part for acquiring status and user contract information. And based on the acquired user status and contract information, the user status reference unit 101b applies to each user status in the priority definition table of the user individual information DB 103 (hereinafter, the user status includes contract information). When the state can be confirmed, the confirmation result is rewritten to on.

  For example, when it is confirmed in the subscriber information that the communication use is suspended, the user state reference unit 101b turns on the confirmation result for the user state that is the communication use suspended state. In addition, if it is not possible to confirm that the upper limit of the charge plan with upper limit is exceeded, that is, if the upper limit is not exceeded based on the subscriber information, the confirmation result of the user state is turned off, Alternatively, leave it off.

  Here, the user state reference unit 101b obtains subscriber information from a subscriber management server, which is an external server. However, the present invention is not limited to this, and so-called subscriber information is provided in the communication control apparatus 100. The subscriber information may be referred to. In addition, the user status may not be related to the subscriber information, and when such information is stored in the communication control apparatus 100, the user status may be obtained by referring to the information. You may make it acquire referring to such information as user information from the server which manages communication information, such as communication restrictions.

  Examples of the user status include a communication usage interruption status, a forced communication stop status, an upper limit over-rate plan based on usage contract information, a return call status, etc., so-called user communication status, mobile communication network This includes all the states related to the user including the communication state of the user and the contract state.

  The user state specifying unit 101c is a part that specifies the user state based on the subscriber information and the like referred to by the user state reference unit 101b. In the present embodiment, the user state specifying unit 101c further specifies a user state whose confirmation result is on based on the priority definition table of the user individual information DB 103. Note that a plurality of user states stored in the priority definition table of the user individual information DB 103 may be on. Therefore, the user status specifying unit 101c can specify the user status with the highest priority by further referring to the priority associated with each user status.

  The connection destination conversion function unit 102 is a part that performs an APN conversion process based on one user state specified by the user state specifying function unit 101 and makes a connection request. FIG. 6 is a block diagram showing a functional configuration of the connection destination conversion function unit 102 as a specific example thereof. The connection destination conversion function unit 102 includes a user state reception unit 102a, a conversion table reference unit 102b (conversion information reference unit), an APN conversion unit 102c (connection destination conversion unit), and a connection request transmission unit 102d (transmission unit). It consists of

  The user status receiving unit 102a is a part that receives the user status specified by the user status specifying unit 101c.

  The conversion table reference unit 102b is a part that refers to the conversion table of the conversion information DB 104. The conversion table reference unit 102b determines whether or not the target user status is registered in the conversion table. If the target user status is registered, the conversion table reference unit 102b further determines that the conversion target APN included in the call request is included. Determine if it is registered. Here, if it is determined that the APN to be converted is registered, an instruction to that effect is given to the APN conversion unit 102c to perform the conversion process. If the user status is not registered in the conversion table, or if the APN to be converted is not registered even if the user status is registered, the APN included in the call request without performing the conversion process Is used as it is, or a predetermined APN is used for the connection request.

  The APN conversion unit 102c is a part that performs APN conversion processing based on the conversion table referenced by the conversion table reference unit 102b. Specifically, the APN conversion unit 102c displays the current user state received by the user state reception unit 102a based on the user state received by the user state reception unit 102a and the reference process performed by the conversion table reference unit 102b. The matching user status is identified from the conversion table. Then, an APN conversion process is performed by extracting an APN corresponding to the user state. In addition, when the user state matches, when the APN included in the transmission request of the mobile device is set as the conversion target APN, the conversion associated with the conversion target APN is performed. The conversion process is performed by extracting the post-APN.

  The connection request sending unit 102d is a part that sends a connection request to the PDN determined based on the APN converted by the APN conversion unit 102c. This connection request includes the user identifier of the mobile device that has transmitted the call request.

  The user individual information DB 103 is a part that stores a priority definition table in which a user state and its priority (priority order) are associated with each other. FIG. 5 is an explanatory diagram of a specific example of the priority definition table. As shown in FIG. 5, the priority definition table describes the confirmation result, the user state, and the priority in association with each other.

  The user status in this priority definition table is information set in advance. The confirmation result is flag information indicating that the user status has been confirmed based on the subscriber information, and is information indicated by on / off. Then, before the user state specifying unit 101c performs the user state specifying process, the user state reference unit 101b accesses an external server such as an HLR (Home Location Register) to acquire subscriber information and the like. If the user's state set in advance is confirmed based on the person information, the confirmation result is rewritten to on. Then, based on the priority definition table, the user state specifying unit 101c specifies one user state based on the user state whose confirmation result is on and its priority.

  The conversion information DB 104 is a part that stores, for each user state, a conversion table in which an APN that is a conversion target (conversion target APN) and an APN after conversion (post-conversion APN) are associated with each other. FIG. 7 is an explanatory diagram of a specific example of the conversion table. As illustrated in FIG. 7, the conversion target APN and the converted APN are associated with each user state. For example, when “EEE” is input, the conversion target APN is referred to and converted into the converted APN “FFF” associated therewith. A so-called full conversion process is performed.

  Note that “*” described in the conversion target APN indicates a wild card and is converted into a predetermined converted APN regardless of the character string of the conversion target APN and the number of characters. When the conversion target APN is “*” and the converted APN is “BBB *”, “BBB” is added to the conversion target APN and a new converted APN is generated. Show. Similarly, when the conversion target APN is “CCC *” and the converted APN is “DDD *”, the character string portion of “CCC” included in the conversion target APN is “DDD”. This indicates that a new post-conversion APN is generated by so-called partial conversion. The APN conversion unit 102c can convert the conversion target APN into the converted APN according to the conversion table stored in the conversion information DB 104.

  In FIG. 7, the user status is described as 1 to n, but is not limited to this.

  Next, a communication control method using the communication control apparatus 100 of the present embodiment will be described. FIG. 8 is a sequence diagram showing communication processing between the mobile device, the communication control apparatus 100, and the PDN.

  A call request including the user identifier and the APN (the APN may not be included) is transmitted from the mobile device to the communication control apparatus 100 arranged in the mobile communication network (S101).

  In the communication control apparatus 100, when the call request is received by the call request receiving unit 101a, the user status is confirmed based on the user identifier, and the priority definition table is updated by the user status reference unit 101b. Then, according to the priority definition table, the user state specifying unit 101c specifies a user state having a higher priority among the user states whose confirmation results are on, and outputs the user state to the connection destination conversion function unit 102 (S102).

  In the communication control apparatus 100, when the user state is received by the user state receiving unit 102a, the conversion table reference unit 102b performs conversion table reference processing (S103), and the APN conversion unit 102c performs conversion corresponding to the user state. A subsequent APN is selected (S104). Then, the connection request transmitting unit 102d transmits a connection request including the user identifier to the converted PDN corresponding to the converted APN (S105).

  On the PDN side, if the contract status is confirmed based on the user identifier and it can be determined that the user based on the user identifier has a usage contract for the PDN, communication connection is established between the mobile device and the PDN. Is performed (S107).

  Next, the above-described processing S102 and processing S103 will be described in more detail. FIG. 9 is a flowchart showing processing in the user state specifying function unit 101 in the communication control apparatus 100.

  In the user status specifying function unit 101, a call request from the mobile device is received by the call request receiving unit 101a, and a user identifier included in the call request is input (S200). Then, based on the input user identifier, the user status is extracted from the subscriber information of the external server, and the confirmation results for the user statuses 1 to N in the priority definition table of the user individual information DB 103 are determined (S201, S203). And S205). Here, only three determination processes of user states 1, 2, and N are shown, but the present invention is not limited to this, and the number of user states may be two or less, or may be four or more. Good.

  Then, the confirmation result is described in the priority definition table in each of the user states 1 to N by the user state reference unit 101b (S202, S204, and S206), and the confirmation result is set to on by the user state specifying unit 101c. Among the plurality of user states that have been assigned, the user state with the highest priority is identified (S207).

  In this way, one user state can be specified based on the user identifier.

  Next, a process for selecting the converted APN based on the user state specified here will be described. FIG. 10 is a flowchart showing processing in the connection destination conversion function unit 102 in the communication control apparatus 100.

  The user state is input from the user state specifying function unit 101 (S301), and the conversion table reference unit 102b determines whether or not the input user state is registered in the conversion table in the conversion information DB 104 (S302). ). When it is determined by the conversion table reference unit 102b that it is registered, it is further determined whether there is a conversion target APN (S303).

  When the user status is registered and the APN included in the call request is described as the conversion target APN in the conversion table, conversion processing by the APN conversion unit 102c is performed (S304). If the user state is not registered or the APN included in the call request is not described as the conversion target APN in the conversion table, the conversion process by the APN conversion unit 102c is not performed.

  Then, based on the APN converted by the APN conversion unit 102c, a PDN that is a connection destination network is selected, and a connection request is transmitted to the PDN (S305). When the APN conversion process is not performed, the PDN that is the connection destination network is selected based on the APN included in the call origination request. Further, when the APN is not set in the setting of the mobile device, the APN set in advance in the communication control apparatus 100 is used.

  Next, operational effects of the communication control apparatus 100 of the present embodiment will be described. According to the communication control apparatus 100 of the present embodiment, the conversion information DB 104 stores a conversion table describing the user status and APN (connection destination information). And the user status specific | specification function part 101 will specify a user status based on the user identifier contained in the said transmission request | requirement, if the transmission request | requirement containing a user identifier at least is received from a mobile device. Then, the connection destination conversion function unit 102 selects an APN (connection destination information) corresponding to the user state specified by the user state specifying function unit 101 based on the conversion table stored in the conversion information DB 104. Then, the connection destination conversion function unit 102 sends a connection request to a PDN (connection destination network) based on the APN selected by the APN conversion unit 102c. Thereby, based on a user state, PDN which is a connection destination network can be selected dynamically. Therefore, even when the APN that can be set on the mobile device side is limited, the diversity of PDN selection for the user can be expanded.

  Further, in detail, the call request receiving unit 101a in the user status specifying function unit 101 receives the call request, and the user status reference unit 101b is a mobile communication carrier or the like that describes the user status for each user identifier. With reference to the stored database, the user state specifying unit 101c specifies the user state corresponding to the user identifier included in the outgoing call request. In the above-described embodiment, the user status reference unit 101b refers to the above-described database to write the confirmed user status in the priority definition table, thereby generating the priority definition table and generating the generated priority. The user status is specified and selected based on the definition table. However, the priority definition table is not necessarily required, and the user status can be determined by grasping the user status based on the database stored by the communication carrier or the like. Any configuration can be used as long as the user state can be specified.

  Further, when the user status is specified by the user status specifying function unit 101, the user status receiving unit 102a in the connection destination conversion function unit 102 receives the user status, and the conversion table reference unit 102b sets the specified user status. Based on this, the conversion table is referred to. When the conversion table is referred to by the conversion table reference unit 102b, the APN conversion unit 102c selects an APN serving as one connection destination information based on the conversion table and the specified user status.

  Thereby, PDN can be dynamically selected based on a user state. Therefore, even when the APN that can be set on the mobile device side is limited, the diversity of PDN selection for the user can be expanded.

  Further, according to the communication control apparatus 100 of the present embodiment, the user state specifying unit 101c can select one user state based on the priority order by the priority definition table stored in the user individual information DB 103. Even when a plurality of user states are obtained, one user state can be selected, and an appropriate connection destination network selection process can be performed.

  Further, according to the communication control apparatus 100 of the present embodiment, when the APN that is the connection destination information included in the outgoing call request matches the APN described in the conversion target column described in the conversion table. In accordance with the conversion table, APN corresponding to the specified user state is selected, and when it is determined that they do not match, the APN selection process based on the conversion table is not performed. Thereby, the PDN selection process based on the APN set on the mobile device side can be performed.

  Further, according to the communication control apparatus 100 of the present embodiment, various APNs can be obtained by converting a part of the APN according to the conversion table or adding a predetermined character string to the APN to generate a new APN. Conversion processing can be realized, and the diversity of PDN selection for the user can be expanded.

DESCRIPTION OF SYMBOLS 100 ... Communication control apparatus, 101 ... User state specific function part, 101a ... Transmission request receiving part, 101b ... User state reference part, 101c ... User state specific part, 102 ... Connection destination conversion function part, 102a ... User state receiving part, 102b ... Conversion table reference unit, 102c ... APN conversion unit, 102d ... Connection request sending unit, 103 ... User individual information DB, 104 ... Conversion information DB.

Claims (6)

In a communication control device that requests connection to a connection destination network in response to a call request from a mobile device
Storage means for storing a conversion table describing user status and connection destination information;
Receiving means for receiving a call request including at least a user identifier from a mobile device;
When a call request is received by the receiving means, a specifying means for specifying a user state based on a user identifier included in the call request;
Conversion means for selecting connection destination information corresponding to the user status specified by the specifying means based on a conversion table stored in the storage means;
Sending means for sending a connection request to a connection destination network based on the connection destination information selected by the conversion means;
A communication control device comprising: The specifying means is:
User status reference means for referring to a database describing the user status for each user identifier;
User status specifying means for specifying the user status corresponding to the user identifier included in the outgoing call request from the database referenced by the user status reference means;
Consisting of
The converting means includes
Conversion information reference means for referring to a conversion table in the storage means based on the user status specified by the user status specifying means;
When the conversion table is referred to by the conversion information reference unit, a connection destination conversion unit that selects one connection destination information based on the conversion table and the user status;
The communication control device according to claim 1, comprising: The conversion table describes connection destination networks in association with priorities in each of a plurality of user states,
The user status reference means refers to the user status from the conversion table;
The communication control apparatus according to claim 1, wherein the user state specifying unit specifies one user state having a high priority. The conversion table stored in the storage means further describes conversion target connection destination information to be converted in association with the conversion table,
The converting means includes
Prior to selecting the connection information corresponding to the identified user status,
If the connection request information is included in the transmission request from the mobile device, whether or not the connection destination information included in the transmission request matches the conversion target connection information described in the conversion table. Judgment
If it is determined that they match, the connection destination information corresponding to the identified user status is selected based on the conversion table,
4. The communication control apparatus according to claim 1, wherein when it is determined that the two do not match, the connection destination information selection process based on the conversion table is not performed. 5. The converting means includes
According to the description of the conversion table, a part or all of the character string of the connection destination information included in the outgoing call request is converted, or new connection destination information is generated by adding a predetermined character string. The communication control device according to any one of claims 1 to 4. A communication control method for a communication control device comprising a storage means for storing a conversion table describing user status and connection destination information, and requesting connection to a connection destination network in response to a call origination request from a mobile device,
Receiving a call request including at least a user identifier from a mobile device;
When a call request is received by the receiving step, a user state is specified based on a user identifier included in the call request, and further, the specified user state based on a conversion table stored in the storage unit A conversion step of selecting connection destination information corresponding to
A sending step for sending a connection request to a connection destination network based on the connection destination information selected in the selection step;
A communication control method comprising:

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