JP2002111867A - Method and system for controlling call processing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and system for controlling call processing which allows the efficient use of communication network resources without increasing the additional facility cost of each telecommunications carrier when long- distance telecommunications carriers start up the MA (local) communication service. SOLUTION: When the system for controlling call processing receives a call with a telephone number attached with an identification number of a specified telecommunications carrier, or receives a call with a telephone number which is one of registered telephone numbers of telecommunications carriers, it sends a call setting signal including a calling party's ID and called party's ID to a call processing server. The call processing server comprises an MA(message area) identification means for finding out whether the calling party's ID and called party's ID belong to the same MA. On reception of the call setting signal, the call processing server judges whether the calling party's ID and called party's ID belong to the same MA. When the calling party's ID and called party's ID are judged belonging to the same MA, the call processing server sends, to an exchange, a signal including an instruction to process the call as an MA communication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call processing control system and a call processing control method which are connected to an exchange of a local communication carrier via a signal network and control call processing (routing) performed by the exchange. is there.

[0002]

2. Description of the Related Art At present, telecommunications carriers are classified into regional telecommunications carriers (for example, NTT East) and long-distance / international telecommunications carriers (for example, the present applicant). In the case of (inter-city) communication or international communication, you can receive the communication service of a long-distance communication carrier.

FIG. 6 is a diagram showing a communication network of such a current categorized communication carrier. As shown in FIG. 6, subscriber terminals 1A and 1B are terminals such as telephones installed at a user's home or the like, and are each a group station (GC; Group Cent) installed by a local communication carrier.
er) Only 2A and 2B are physically connected via the subscriber line (that is, they are not directly connected to the exchange of the long distance carrier). Each of the group stations 2A and 2B is connected to a relay station (ZC; Zone Center) 3 of a local communication carrier.

A gateway switch (GS; Gateway Switch) 4
Is an exchange installed by a long-distance communication carrier, which is interconnected with the exchange 3 (that is, an NTT local network) via an interconnection point (POI; Point Of Interface) 5 and has a long-distance communication line. 6 is connected. Although not shown in FIG. 6, the end of the long-distance communication line 6 is connected to the gateway exchange 4 in the same manner as described above, connected to the relay station 3 via the interconnection point 5, and via the group stations 2A and 2B. Connected to the subscriber terminal 1C. The interconnection point 5 is connected to the group station 2
A and 2B may be directly connected.

[0005] When a user of the subscriber terminal 1A calls the subscriber terminal 1C using the long distance telephone service of the long-distance communication carrier (B in FIG. 6), 00XY (for example, 00
It is necessary to make a call by adding a prefix (operator identification number) for identifying a communication carrier, such as 88, to the telephone number. Here, the prefix is manually added by the user or automatically added to the telephone number by an automatic line selector (for example, an ACR (Automatic Carrier Routing) adapter).

[0006] When the local station 2A recognizes that a prefix is added to the telephone number in the call when a call is made from the subscriber terminal 1A, the call is lengthened. It is determined that the call is to be made using the long-distance communication line 6 of the distance communication company, the route is selected according to the telephone number and the prefix, and the call is transmitted to the exchange 3. Similarly, when the exchange 3 recognizes that the prefix is added to the telephone number in the outgoing call, it selects a route according to the telephone number and the prefix, and transmits the outgoing call via the communication line to the gateway exchange 4. To be transmitted.

[0007] Upon receiving the call, the gateway exchange 4 performs call processing according to the telephone number and prefix of the call, and transmits the call via the long-distance communication line 6 to the subscriber terminal 1.
The data is transmitted to the gateway exchange 4 where C exists. Finally, a call is sent to the subscriber terminal 1C via the gateway exchange, the exchange, and the subscriber line exchange, and the line between the subscriber terminal 1A and the subscriber terminal 1C is connected.

[0008] The user of the subscriber terminal 1A is the subscriber terminal 1
When making a call to B (A in FIG. 6), the call is made without adding a prefix to the telephone number because the call is within the toll area (local). When there is a call from the subscriber terminal 1A, the local line exchange 2A of the local communication carrier recognizes that the prefix is not added to the telephone number of the call, and performs call processing according to the telephone number of the call. I do.

[0009] The relay station 3 also performs call processing according to the telephone number in the call, transmits the call to the group station 2B, and transmits the call to the group station 2B.
Performs call processing according to the telephone number in the call, and transmits the call to the subscriber terminal 1B. And the subscriber terminal 1A
Is connected to the subscriber terminal 1B.

As described above, the local communication carriers and the long-distance communication carriers are currently classified into categories, and the users are
For calls within the toll area (in the city), a local carrier can be used, and for toll calls, a long-distance carrier can be used.

By the way, a telephone company selection service is started in May 2001. In the telephone company selection service, a user selects and registers a telephone company (telecommunication carrier) to be used in advance, and the registration information is registered in the subscriber line exchanges 2A and 2B of the subscriber terminals 1A and 1B. And
When there is a call from the subscriber terminal 1A, 1B, the group stations 2A, 2B, based on the registration information of the subscriber terminal 1A, 1B,
This automatically adds a prefix, which is the identification number of the communication carrier, to the telephone number, performs call processing, and connects to the NCC communication line 6 of the long distance / international communication carrier. Therefore, the user can use the communication service of the long-distance communication carrier only by selecting and registering the communication carrier without dialing the prefix such as 00XY which was required conventionally.

By the way, a long-distance communication carrier can provide not only a long-distance (extra-city) communication service but also a communication service in a toll zone (in the city). When a user intends to use the long-distance (intercity) communication service provided by a long-distance carrier in the toll area (city) communication service, Dial prefix when making local calls. Also, when the user uses the telephone company selection service, the prefix is automatically added at the group stations 2A and 2B. Therefore, the user does not need to dial the prefix and can use the long-distance communication carrier's charge area. It is possible to use internal (city) communication services.

[0013]

However, when a user makes a local call from the subscriber terminal 1A to the subscriber terminal 1B, the user may be in a toll area by the long-distance communication carrier as described above (in the city area). When using a communication service or using a telephone company selection service, a prefix is manually or automatically added to a telephone number, so that the group station 2A and the relay station 3 are added to the telephone number. Call processing is performed according to the prefix, and the call is transmitted to the gateway exchange 4.

Therefore, although the call is actually a local call from the subscriber terminal 1A to the subscriber terminal 1B, the call is transmitted to the subscriber terminal 1B via the gateway exchange 4,
As a result, the return part of the communication path becomes large, and the communication network resources cannot be used efficiently.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended to realize a communication service in a toll zone (in a city) by a long-distance communication carrier. An object of the present invention is to provide a call processing control method and a call processing control system that can efficiently utilize communication network resources without increasing a load.

[0016]

In order to achieve the above object, the present invention provides a call processing control system including a local exchange carrier's exchange, and a call processing server capable of transmitting and receiving signals to and from the exchange. The exchange, upon receiving a call with a predetermined communication carrier identification number attached to a telephone number,
Alternatively, upon receiving a call of a telephone number registered as a communication carrier used by the predetermined communication carrier, the caller I
D and a call setting signal transmitting means for transmitting a call setting signal containing information on the called party ID to the call processing server; Call processing means for performing call processing as communication or performing call processing as out-of-charge area communication, wherein the call processing server, when receiving the call setting signal, makes the caller ID and the called party ID the same. And a charge area identification means for identifying whether the caller ID is within the charge area, and the caller ID and the caller ID by the charge area identification means.
Are identified as belonging to the same toll zone, send a signal to the exchange containing an instruction to process the call as toll zone communication, and provide the caller ID and caller I
If D is not identified as belonging to the same toll zone, the call processing request signal including an instruction to process the outgoing call as out-of-toll zone communication is transmitted to the exchange. It is a feature.

As described above, according to the present invention, a call in which the identification number of a predetermined communication carrier is attached to a telephone number or is registered as a communication carrier used by the predetermined communication carrier. Even if the caller of the telephone number is from the same toll zone as the calling party and the called party, it is processed as communication within the toll zone, so it is possible to effectively prevent the return of the communication path, As a result, communication network resources can be efficiently used without increasing the facility burden on each communication carrier. In the present invention, the caller ID includes, for example, a caller telephone number, and the caller ID includes, for example, a called party telephone number.

[0018] In the call processing control system according to the present invention, the call processing server, upon receiving the call setting signal, includes an instruction to transmit information on a communication fee for communication in a toll zone performed by the call processing means. And receiving a charge information request signal from the call processing server, wherein the switch transmits a signal including information related to the communication charge to the call processing server. In this case, it is preferable that the call processing server includes a billing processing system or is connected to the billing processing system. With this configuration, the call processing server can perform charging processing for communication in the toll zone.

[0019] Further, the present invention provides a communication system in which an exchange of a local telecommunications carrier receives a call with an identification number of a predetermined telecommunications carrier attached to a telephone number, or a communication business used by the predetermined telecommunications carrier. Receiving a call of a telephone number registered as a caller, transmitting a call setup signal including information on a caller ID and a callee ID to a call processing server capable of transmitting and receiving signals to and from the exchange. , When the call processing server receives the call setup signal, the caller ID and the called party I
If D is in the same toll zone, and if the caller ID and the called party ID are in the same toll zone, the call is identified as toll zone communication. Sending a signal containing an instruction to be processed to the exchange, and if the caller ID and the called party ID are not identified as being in the same toll zone, the outgoing call is regarded as out-of-charge zone communication. Transmitting a call processing request signal including an instruction to be processed to the exchange; and, when the exchange receives the call processing request signal from the call processing server, based on an instruction from the call processing server, receiving the call processing request signal. Or performing a call processing of the outgoing call as communication within the toll area or a call processing as communication outside the toll area.

[0020] In the call processing control method according to the present invention, when the call processing server receives the call setting signal, a charge information request signal including an instruction to transmit information on a communication charge for the communication in the charge area is provided. Sending a charging event notification request (RNCE) to the exchange;
Preferably, when the exchange receives a charge information request signal from the call processing server, the exchange further transmits a signal including information on the communication charge to the call processing server.

Furthermore, the present invention provides a method for receiving a call in which an identification number of a predetermined communication carrier is attached to a telephone number, or a telephone number registered as a communication carrier used by the predetermined communication carrier. A call setting signal transmitting means for transmitting a call setting signal including information on a caller ID and a called party ID to a call processing server capable of transmitting and receiving signals, and receiving the call from the call processing server. Call processing means for processing the received outgoing call as communication within the toll area or performing call processing as communication outside the toll area based on the indicated instruction signal. The exchange. The exchange may be configured to transmit, to the call processing server, a signal including information on a communication fee for communication in a toll zone performed by the call processing means, based on an instruction from the call processing server. preferable.

Still further, the present invention is directed to a telephone system which receives a call in which an identification number of a predetermined communication carrier is attached to a telephone number, or which is registered as a communication carrier used by the predetermined communication carrier. When you receive a number call, caller ID
And charge area identification means for identifying whether the caller ID is in the same charge area, and the charge area identification means for identifying the caller ID and the caller ID in the same charge area. If the caller ID is identified as being within the same toll zone, the call is treated as a toll zone communication, and if the caller ID and the called party ID are not identified as being within the same toll zone, the call is processed. And a call processing means for processing as out-of-charge area communication. In this exchange, it is preferable that, when the outgoing call is processed as communication within the toll zone, a signal including information on a communication fee for the communication within the toll zone is transmitted to the predetermined communication carrier. .

Further, the present invention, when receiving a call setting signal including information on a caller ID and a caller ID from a local exchange carrier's exchange, the caller ID and the caller ID
Are included in the same toll zone, and the caller ID and the called party ID are identified as being in the same toll zone by the toll zone identifying means. If so, a signal including an instruction to process the outgoing call as toll area communication is transmitted to the exchange, and the caller ID and the called party ID are identified as being in the same toll area. If not, a call processing request signal including an instruction to process the outgoing call as out-of-charge area communication is transmitted to the exchange. Call processing capable of transmitting and receiving signals to and from the exchange Server.

[0024] In the call processing server according to the present invention, upon receiving the call setting signal, a charge information request signal including an instruction to transmit information on a communication charge for communication in a charge area performed by the exchange is sent to the exchange. Preferably, it is configured to transmit.

In the call processing control system, the call processing control method, the exchange, and the call processing server according to the present invention, the information on the communication charge includes a call start time, a call end time, and a settlement between carriers in a charge area. There is necessary data.

[0026]

Next, a first embodiment of a call processing control system according to the present invention will be described. 1 and 2
FIG. 1 is a block diagram showing a configuration of a call processing control system according to a first embodiment. FIG. 1 shows a signal between a call processing server and an exchange when a user makes a telephone call in a toll zone (in a city). FIG. 2 shows signals between the call processing server and the exchange and the gateway exchange when the user makes a long-distance (out of the toll zone, outside the city) call.

As shown in FIGS. 1 and 2, the call processing control system according to the first embodiment includes an exchange (GC) 10 of a local communication carrier, a call processing server 12 for transmitting and receiving signals to and from the exchange 10, and , Is provided.

The local exchange 10 has a local exchange (LS) 14 and a service connection device (SAP; Serv).
ice Access Point) 16. The local exchange 14 of the exchange 10 has a plurality of subscriber terminals 18A, 18B.
... are connected via the subscriber line 20. Also,
The service connection device 16 in the exchange 10 is an exchange provided with an interface for connecting to a signal network, and is connected to a call processing server via signal lines 22A and 22B signal relay stations (STP) 24 and 26. .

The call processing server 12 has signaling networks 22A, 22
It is connected to the exchange 10 and the gateway exchange (GS) 28 via B and 22C, and is configured to be able to transmit and receive signals to and from the exchange 10 and the gateway exchange 28. In addition, the call processing server 12 has a function of performing the call processing control of the present invention by transmitting a signal for instructing the call processing to the exchange 10 and the gateway exchange 28, and also has a function of performing a communication charge accounting process. Have.

The gateway exchange (GS) 28 is an exchange installed by a long-distance carrier and has an interconnection point (P
OI) 30 and connected to the exchange 10
It is connected to a long distance communication line 32. Gateway exchange 28
Has a service processor (SSP) 34, which is an exchange having an interface for connecting to a signal network, and the service processor 34 is connected to the signal relay station 26 via a signal line 22C. . Although not shown in FIG. 2, the end of the long-distance communication line 32 is connected to the subscriber terminal 1C via a gateway exchange and an exchange (including a subscriber line exchange).

The signal relay stations (STPs) 24 and 26 transmit signals exchanged between the call processing server 12 and the exchange 10 and the gateway exchange 34. Signal relay station 2
4 is connected to the service connection device 16 and the interconnection point 36 of the exchange 10 via signal lines 22A and 22B, and the signal relay station 26 is connected to the service processing device 3 of the gateway exchange 28.
4. Interconnection point 36, call processing server 12, and signal line 22
B and 22C.

Next, the operation of the call processing control device according to the first embodiment will be described. FIG. 3 and FIG. 4 are sequence diagrams for explaining the call processing control method (operation of the call processing control system) of the present invention. FIG. 3 shows a call processing control method when a user makes a call in a toll area (in the city).
Shows a call processing control method when a user makes a long-distance (extra-city) call. In this embodiment, it is assumed that the user of the subscriber terminal 18A has selected a long-distance carrier having the call processing server 12 by the telephone company selection service.

First, a case in which a call is made within a toll zone (in the city) will be described with reference to FIGS. When making a call from the subscriber terminal 18A to the subscriber terminal 18B, the user dials the telephone number without adding a prefix because the telephone company selection service is used.

The subscriber line exchange 14 of the exchange 10 receives a call from the subscriber terminal 18A (FIGS. 1 and 3).
If the prefix and area code are not automatically added based on the registration information of the subscriber terminal 18A,
A call is sent to the service connection device 16 by adding the toll number of the same toll area as the subscriber terminal 18A to the called party ID. The local exchange 14 does not perform the calling process at this time.

When the service connection unit 16 receives a call from the local exchange 14, the prefix (for example, 0088) in the call is used as a trigger to inquire the call processing server 12 about call processing control. To, Init
Caller ID by ial DP (Detection Point) signal
(Eg, the caller telephone number) and the called party ID (eg, the called telephone number) are transmitted to the call processing server 12 via the signal relay stations 24, 26 (FIGS. 1 and 3).

The call processing server 12 is a service connection device 1
6: Caller ID and Caller ID by Initial DP signal
Is transmitted, it is determined from the caller ID and the callee ID whether the call is a local call or a toll call. When the call processing server 12 determines that the call is a local call as a result of the determination, the call processing server 12 sends a connection signal (Connect signal) for instructing the exchange 10 to connect the outgoing call (local call) via the signal relay stations 24 and 26. To the service connection device 16 (FIGS. 1 and 3).
of). Here, the Connect signal contains the called party ID, but since the incoming call is a local call, the prefix and the area code are removed from the called party ID.

The call processing server 12 transmits a Connect signal to the service connection device 16 and, at the same time, requests charging information (call start time and call end time).
Request for transmitting a port BCSM (Basic Call State Model) Event signal (BCSM event request notification signal) to the service connection device 16 and requesting data (for example, destination business operator / destination MA, etc.) necessary for inter-enterprise settlement. Noti
A fication Charging Event signal (charging event notification request signal) is transmitted to the service connection device 16, and a charging location is transmitted (charging is performed by the call processing server 12, so that charging at other locations is unnecessary. Send)
A charging information signal is transmitted to the service connection device 16 (FIGS. 1 and 3).

[0038] The service connection device 16 is connected to the call processing server 1.
2 receives the Connect signal transmitted from IAM
(Initial Address Message) is transmitted to the local exchange 14 (FIGS. 1 and 3).
Upon receiving the IAM transmitted from the service connection device 16, the subscriber line switch 14 receives an ACM (Address Complete).
Message (address completion message) (under calling) is transmitted to the subscriber terminal 18B and the service connection device 16 (FIGS. 1 and 3).

Upon receiving the ACM, the service connection device 16 immediately requests the Notification Notification Charging Event.
Ev responding to signal (charging event notification request signal)
An entNotification Charging signal (charging event notification signal) is transmitted to the call processing server 12 to transmit data necessary for inter-company settlement (FIGS. 1 and 3). When the user on the receiving side of the subscriber terminal 18B answers the call, the subscriber terminal 1B sends an ANM (Answer) message.
Message (response message) is transmitted to the local exchange 14, and the local exchange 14 transmits the ANM to the service connection device 16 (FIGS. 1 and 3).

When the service connection device 16 receives the ANM transmitted from the subscriber line switch 14, the service connection device 16
rt Event Report that responds to BCSM Event signal
t Send a BCSM signal to the call processing server 12,
The call start time is transmitted (FIGS. 1 and 3). As a result, a line is connected between the subscriber terminal 18A and the subscriber terminal 18B, and a call is started.

When the line between the subscriber terminal 18A and the subscriber terminal 18B is disconnected, the subscriber line exchange 14
L (Release Message: disconnection message) is transmitted to the service connection device 16 (FIGS. 1 and 3), and when the service connection device 16 receives the REL, the Request Report
Event Report B responding to BCSM Event signal
A CSM signal is transmitted to the call processing server 12 to transmit a call end time (■ in FIGS. 1 and 3). Then, the service connection device 16 sends the R
The communication is terminated by transmitting an LC (Release Complete: recovery completion message) (■ in FIGS. 1 and 3). Further, the call processing server 12 transmits NULL-END to the service connection device 16 and ends the call control processing (FIGS. 1 and 3).
■).

Next, a case of making a long distance (outside the toll area, outside the city) call will be described with reference to FIGS. First, when making a call from the subscriber terminal 18A to the subscriber terminal 18C, the user dials the telephone number without adding a prefix because the telephone company selection service is used as described above. I do.

When a call is made from the subscriber terminal 1A (FIG. 2 and FIG. 4), the subscriber line switch 14 of the exchange 10 performs a call based on the registration information of the subscriber terminal 1A in the same manner as described above. A call is sent to the service connection device 16 with the prefix automatically added to the called party telephone number. The local exchange 14 does not perform call processing at this time.

When the service connection device 16 receives a call from the local exchange 14, the prefix (for example, 0088) in the call is used as a trigger to inquire the call processing server 12 about call processing control. To, Init
Caller ID by ial DP (Detection Point) signal
(Caller telephone number) and caller ID (receiver telephone number) are transmitted to the call processing server 12 via the signal relay stations 24 and 26 (FIGS. 2 and 4).

The call processing server 12 is connected to the service connection device 1
6: Caller ID and Caller ID by Initial DP signal
Is sent, as in the above case, the caller I
From D and the called party ID, it is determined whether the outgoing call is a local call or a local call. When the call processing server 12 determines that the call is a toll call as a result of the determination, the call processing server 12 calls the exchange 10 (toll call).
Connect signals for instructing connection of the signal relay stations 24 and 26
2 is transmitted to the service connection device 16 through FIG.
And FIG. 4). At this time, the Connect signal includes all of the callee IDs (eg, 0088 + 0...).

Since all of the callee IDs are transmitted by the Connect signal, the service connection device 16 recognizes the callee ID and transmits the Initial DP signal to the call processing server 12 again. It is necessary to prevent such processing looping.

Further, the call processing server 12 transmits the Connect signal to the service connection device 16 and at the same time, transmits the billing place (because the billing process is performed by the call processing server 12,
Send that charging is not required elsewhere) Send Cha
The rging information signal (charging information creation signal) is transmitted to the service connection device 16 via the signal relay stations 24 and 26 (FIGS. 2 and 4).

After that, the process is the same as that of a normal toll-call process. Upon receiving the Connect signal transmitted from the call processing server 12, the service connection device 16 transmits the IAM to the service processing device 34 of the gateway exchange 34 (FIGS. 2 and 4), and the service processing device 34 Is received, the exchange side in which the subscriber terminal 1C is located receives I
Transmit the AM (FIGS. 2 and 4). Finally, the IAM is transmitted to the local exchange 14 in which the subscriber terminal 1C exists.

Upon receiving the IAM transmitted from the service connection device, the subscriber line exchange 14 transmits an ACM (calling) to the subscriber terminal 1C and transmits the ACM to the service connection device. The service connection device transmits the ACM to the gateway exchange 28 in which the subscriber terminal 1A exists (FIGS. 2 and 4). Upon receiving the ACM, the service processing device 34 of the gateway switch 20 receives the ACM.
The CM is transmitted to the service connection device 16 of the exchange 10 (FIGS. 2 and 4). When the user on the receiving side of the subscriber terminal 1C answers the call of the call, a line is connected between the subscriber terminal 1A and the subscriber terminal 1C, and the call is started.

When the line between the subscriber terminal 1A and the subscriber terminal 1C is disconnected, the REL from the exchange where the subscriber terminal 1C is located to the service processing unit 34 of the gateway exchange 28 is used.
Is transmitted (of FIGS. 2 and 4). Upon receiving the REL, the service processing device 21 of the gateway switch 20 receives the REL.
The EL is transmitted to the service connection device 16 of the exchange 10 (FIGS. 2 and 4). Then, the service connection device 16
When the REL is received, the RLC is transmitted to the service processing device 34, and the service processing device 34 transmits the RLC to the exchange where the subscriber terminal 1C is located,
The call is ended (FIGS. 2 and 4).

As described above, according to this embodiment,
Even when a prefix is added (manually or automatically) to the telephone number of a local call (local call), the call processing server 12 does not cause the exchange 10 of the local communication carrier to perform routing (call processing) according to the prefix. In this way, it is possible to prevent the return of the communication path due to the local call being transmitted to the gateway exchange 28,
As a result, communication network resources can be efficiently used without increasing the facility burden on each communication carrier.

The call processing server 12 is connected to the exchange 10 via a signaling network, and communicates with the exchange 10 as an Initial.
Since the call processing of the exchange 10 is controlled by exchanging the DP signal and the Connect signal, it is easy to remotely control the call processing of a plurality of exchanges. It can be managed.

Further, the call processing server 12 is configured to manage the billing process for local calls by exchanging information regarding the billing process with the exchange 10, so that the long-distance communication carrier can be variously changed. It is also possible to provide a user with a communication service in a toll area (in the city) having a simple rate format.

Next, a second embodiment of the exchange 10 of the local communication company according to the present invention will be described with reference to the drawings. FIG. 5 is a block diagram of the exchange 10 according to the second embodiment and a communication system including the same. Exchange 1 according to a second embodiment
0 differs from the exchange in the first embodiment in that call processing control can be performed. Therefore, in the communication system including the exchange 10 according to the second embodiment, there is no need to provide a call processing server as in the first embodiment, and the exchange 10
Transmits information necessary for billing processing when performing communication within the toll area (in the city), to the signal networks 22A and 22B, the signal relay station 24,
It is configured to transmit to a predetermined charging server 38 via.

Next, the operation of the exchange 10 according to the second embodiment will be described with reference to FIG. When making a call from the subscriber terminal 18A to the subscriber terminal 18B, the user dials the telephone number without adding a prefix because the telephone company selection service is used.

When there is a call from the subscriber terminal 18A (FIG. 5), the subscriber line exchange 14 of the exchange 10 calls the caller I.
From D and the called party ID, it is determined whether the outgoing call is a local call or a local call. When the subscriber line exchange 14 determines that the call is a local call as a result of the determination, the ACM (Address Complete).
Message; call setup completion message)
And transmits it to the service connection device 16 (FIG. 5).

Upon receiving the ACM, the service connection device 16 immediately transmits an Event NotificationCharging signal to a predetermined accounting server 38, and transmits data necessary for inter-enterprise settlement (FIG. 5). Subscriber terminal 18
When the user on the receiving side of B answers the call, the subscriber terminal 18B sends an ANM (Answer Message).
Is transmitted to the local exchange 14, and the local exchange 14
Sends the ANM to the service connection device 16 (of FIG. 5).

When the service connection device 16 receives the ANM transmitted from the subscriber line switch 14, the service connection device 16
A BCSM signal is transmitted to a predetermined charging server 38 to transmit a call start time (FIG. 5). As a result, a line is connected between the subscriber terminal 18A and the subscriber terminal 18B, and a call is started.

When the line between the subscriber terminal 18A and the subscriber terminal 18B is disconnected, the subscriber line exchange 14
L (Release Message) is transmitted to the service connection device 16 (FIG. 5). When the service connection device 16 receives the REL, the service connection device 16 transmits an Event Report BCSM signal to a predetermined charging server 38, and the call end time Is transmitted (of FIG. 5). Then, the service connection device 16 transmits an RLC (Release Complete) to the local exchange 14, and terminates the call (FIG. 5).

[0060]

As described above, according to the present invention, in the case of a local call (local call), the call processing server 12 controls the exchange 10 of the local communication carrier so that the call is not processed according to the prefix. Therefore, it is possible to prevent the return of the communication path, and as a result, there is an effect that the communication network resources can be efficiently used without increasing the facility load of each communication carrier.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment according to a call processing control system of the present invention.

FIG. 2 is a block diagram showing a configuration of a first embodiment of the call processing control system of the present invention.

FIG. 3 is a sequence diagram illustrating a call processing control method according to the first embodiment.

FIG. 4 is a sequence diagram illustrating a call processing control method according to the first embodiment.

FIG. 5 is a block diagram showing a configuration of a second embodiment according to the call processing control system of the present invention.

FIG. 6 is a diagram showing a conventional communication network of a communication carrier classified into categories.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 switch 12 call processing server 14 subscriber line switch 16 service connection unit 18A, 18B, 18C subscriber terminal 24, 26 signal relay station 28 gateway switch 30, 36 interconnection point 34 service processing unit

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[Procedure amendment]

[Submission date] October 5, 2000 (2000.10.
5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0041

[Correction method] Change

[Correction contents]

When the line between the subscriber terminal 18A and the subscriber terminal 18B is disconnected, the subscriber line exchange 14
L (Release Message: disconnection message) is transmitted to the service connection device 16 (FIGS. 1 and 3), and when the service connection device 16 receives the REL, the Request Report
Event Report B responding to BCSM Event signal
The CSM signal is transmitted to the call processing server 12, and the call termination time is transmitted (○ 10 in FIGS. 1 and 3). Then, the service connection device 16 sends an RLC (Release Complete: restoration completion message) to the subscriber line exchange 14.
To end the call (O1 in FIGS. 1 and 3).
1). Further, the call processing server 12 transmits NULL-END to the service connection device 16 and ends the call control process (（12 in FIGS. 1 and 3).

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Claims (10)

[Claims] 1. A call processing control system comprising: an exchange of a local communication carrier; and a call processing server capable of transmitting and receiving signals to and from the exchange, wherein the exchange has an identification number of a predetermined communication carrier. When receiving a call attached to a telephone number, or receiving a call of a telephone number registered as a communication carrier used by the predetermined communication carrier, a caller ID and a caller ID A call setting signal transmitting means for transmitting a call setting signal including information to the call processing server; and, based on the instruction signal received from the call processing server, performing the call processing on the received call as communication in a toll zone, Or call processing means for performing call processing as out-of-charge area communication, the call processing server, upon receiving the call setting signal, the caller ID and the called party ID are within the same toll area. Identify if there is If the caller ID and the called party ID are identified as belonging to the same toll zone, the call is processed as toll zone communication. Sending a signal containing an instruction to cause the caller to identify the caller ID and the called party ID as being in the same toll zone;
A call processing control system configured to transmit a call processing request signal including an instruction to process the outgoing call as out-of-charge area communication to the exchange. 2. The call processing server, upon receiving the call setting signal, sends a charge information request signal including an instruction to transmit information on a communication charge for communication in a charge area performed by the call processing means to the exchange. The exchange is configured to, when receiving a charge information request signal from the call processing server, transmit a signal including information on the communication charge to the call processing server. The call processing control system according to claim 1. 3. An exchange of a local communication carrier receives a call having a telephone number with an identification number of the predetermined communication carrier, or is registered as a communication carrier used by the predetermined communication carrier. Transmitting a call setting signal including information on a caller ID and a called party ID to a call processing server capable of transmitting and receiving signals to and from the exchange when receiving a call of the telephone number. When the server receives the call setup signal, the server identifies whether the caller ID and the caller ID are in the same charge area, and determines whether the caller ID and the caller ID are the same charge. If it is determined that the call is within the area, a signal including an instruction to process the call as communication within the charge area is transmitted to the exchange, and the caller ID and the caller ID are within the same charge area. If the call is not identified as Transmitting a call processing request signal including an instruction to process as out-of-charge area communication to the exchange; and, when the exchange receives the call processing request signal from the call processing server, the exchange receives an instruction from the call processing server. Call processing as a communication within the toll area or a call processing as communication outside the toll area based on the received call. 4. When the call processing server receives the call setup signal, the call processing server transmits to the exchange a charge information request signal including an instruction to transmit information on a communication charge for the communication within the charge area. 4. The system according to claim 3, further comprising, upon receiving a charge information request signal from the call processing server, transmitting a signal including information on the communication charge to the call processing server. Call processing control method. 5. A call receiving a telephone number with an identification number of a predetermined telecommunications carrier, or a call of a telephone number registered as a telecommunications carrier used by the predetermined telecommunications carrier. Upon receiving, a call setting signal transmitting means for transmitting a call setting signal including information on the caller ID and the called party ID to a call processing server capable of transmitting and receiving signals, and an instruction signal received from the call processing server. On the basis of whether the received outgoing call is processed as communication within the toll zone,
Or a call processing means for performing call processing as out-of-charge area communication. 6. A system which is configured to transmit, to the call processing server, a signal including information on a communication charge for communication in a toll zone performed by the call processing means, based on an instruction from the call processing server. The exchange according to claim 5, characterized in that: 7. Receiving a call in which a predetermined communication carrier identification number is attached to a telephone number, or calling a telephone number registered as a communication carrier used by the predetermined communication carrier. Upon receipt, the toll zone identification means for identifying whether the caller ID and the called party ID are in the same toll zone, and the toll zone identification means allows the caller ID and the called party ID to be identified. If the call is identified to be in the same toll zone, the call is treated as a toll zone communication and the caller ID and caller ID are identified to be in the same toll zone. A call processing means for processing the outgoing call as out-of-charge area communication when there is no call. 8. The method according to claim 1, wherein when the outgoing call is processed as intra-charge area communication, a signal including information on a communication charge for the intra-charge area communication is transmitted to the predetermined communication carrier. An exchange according to claim 7, characterized in that: 9. A caller ID from a local exchange's exchange
And receiving a call setting signal including information on the called party ID, comprising charge area identification means for identifying whether the caller ID and the called party ID are in the same charge area,
If the caller ID and the called party ID are identified as belonging to the same toll zone by the toll zone identification means, a signal including an instruction to process the call as toll zone communication is sent. A call processing including an instruction to be transmitted to said exchange, wherein said caller ID and called party ID are not identified as being in the same toll zone, and said call is processed as out-of-charge zone communication; A call processing server capable of transmitting and receiving signals to and from the exchange, configured to transmit a request signal to the exchange. 10. When receiving the call setup signal, the switch is configured to transmit a charge information request signal including an instruction to transmit information on a communication charge for communication in a toll zone performed by the switch to the switch. 10. The call processing server according to claim 9, wherein: