KR0150186B1 - Digital subscriber's call limitation service method in n-isdn ess - Google Patents

Abstract

The present invention uses the audible sound and visual information to call the activation status of the call restriction service for the subscribers satisfying the N-ISDN user-network connection signaling in the N-ISDN switch. The present invention relates to a method for processing a restricted service that provides subscribers with the necessary information to improve the quality of the call restriction service by the subscriber. The subscriber connected to the N-ISDN exchange is required to follow the simple registration procedure through the terminal device if necessary. Registering the call restriction service by its subscriber to the exchange, the exchange can provide the call restriction service of the calling party to the calling party through the announcement and the display device of the terminal for all outgoing calls, and the N-ISDN terminal. It can be applied to all N-ISDN exchanges using N-ISDN subscriber-network signaling of CCITT without additional device functions. This can reduce the economic burden.

Description

Method of Processing Called Service by Digital Subscriber in Narrow-Band Switching System

1 is an exemplary view of an all-electronic exchanger (TDX-10) which is a distributed control system to which the present invention is applied.

2 through 4 are flowcharts of one embodiment of a method for processing a callback service by a digital subscriber according to the present invention.

The present invention provides a subscriber (i.e., basic matched subscriber, primary group matched subscriber, and subscriber) that satisfies the N-ISDN user-network access signaling in a narrowband integrated service digital network (N-ISDN) switch. The call restriction service activation status requested for the primary access multi-subscriber is determined by using audible tones (i.e., announcement broadcast pool information to the calling subscriber) and visual information (i.e., information displayed on the terminal subscriber's terminal display). The present invention relates to a method for processing a restricted service that provides the calling subscriber with the necessary information to improve the quality of the call restriction service by the subscriber.

In the conventional public switched telephone network (PSTN), a call restriction service by a subscriber is provided for a telephone subscriber having an analog access method. However, in the conventional call restriction service method, since a signal transmission channel between a subscriber and a network is not provided separately, only a limited level of service can be provided by an audible sound through an information transmission channel, and PSTN and N-ISDN can be provided with a subscriber. There was a problem in that the connection specification of the exchange period was not applicable to the N-ISDN. Therefore, the conventional technology is required to provide a service for all N-ISDN access terminals, such as telephone and data, because it is impossible to provide a service to the data mode terminal other than the telephone by using only audible sound to the subscriber. Therefore, in the present invention, if a subscriber registers a service called by the subscriber to the N-ISDN exchange, the subscriber can record the announcement and the screen display device of the subscriber terminal so that the call can be restricted for all outgoing calls during the registered time. Call Restriction Service to provide service success message using Liquid Crystal Display, and to provide additional communication service to notify subscriber to take active action by using audible sound and LCD when failure of digital call. Its purpose is to provide a treatment method.

In order to achieve the above object, the present invention provides a method for processing a call restriction service by a digital subscriber, which is applied to a distributed control system. The first step of providing a service success message to the calling subscriber through the recording announcement and the display device of the subscriber terminal to limit the call: recording announcement and the display device when the service failed by the subscriber A second step of providing a service failure message to the calling subscriber and releasing the related call; and a third step of performing a call limiting service by checking a range called by the exchange when a call is attempted from a service-activated subscriber.

The present invention handled as described above, apart from the call limit by the operator of the exchange, the subscriber has a specific code promised with the exchange (i.e., 1 is a specific function, 2 is home, 3 is local, 4 is local) , And 5 may send an international call to the exchange to limit the call to outgoing calls on its own line. Therefore, when the service is started, the exchange checks the call range for all calls originating from the corresponding line, and if the limit is exceeded, it uses the announcement and the display device of the subscriber terminal (i.e. Service announcement message (DCRU Service NOK) service information (DCRU Service NOK) displayed on the terminal display device of the calling subscriber is provided. Therefore, the present invention enables visual confirmation, and when the service called by the subscriber fails, the subscriber can take an active action by using the display device of the terminal to further improve the quality of the service called by the subscriber. You can improve further. Therefore, the service invoked by the subscriber of the present invention allows the calling subscriber connected to the N-ISDN to limit the call to the outgoing call of the own line, and accordingly, the general matter to be handled by the N-ISDN exchange (i.e., Implementation, service registration, cancellation, and provisioning.

The gist of the present invention is that all procedures of the N-ISDN exchange and the terminal device for service are the same as the case of setting up a general call, and all current N-ISDN terminals are not used because no additional message or information element is used. It can be used without adding a function and can be easily applied to all exchanges using the N-ISDN subscriber-network access standard of the International Standard (CCITT). In addition, the present invention provides a visual method by providing the display information using the signaling method of the N-ISDN subscriber-network using the D-channel as well as the existing audible sound at the time of service registration and cancellation, and the subscriber to the service It can also deliver the necessary information to the subscriber. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exemplary view of an electronic switch (TDX-10), which is a distributed control system to which the present invention is applied, in which 10 is an Access Switching Subsystem (ASS) and 20 is an INS (Insert Network Subsystem). Interconnection Network Subsystem and 30 indicate Central Control Subsystem (CCS), respectively.

A TDCX (Time Division Switching System), which is a distributed control system, is connected to a plurality of access switching subsystems 10 that accommodate 4096 subscriber lines and 1024 trunk lines, and a plurality of access switching subsystems 10. A network subsystem 20 and a central control subsystem 30 coupled to the network subsystem 20.

The plurality of access switching subsystems 10 are subscribing to a subscriber access switching subsystem (ASS_S: ASS_Subscriber), an integrated information network subscriber access switching subsystem (ASS_I: ASS_ISDN Subscriber), and a trunk subscriber access switching subsystem (ASS_T: ASS_Trunk). It is classified into a common signaling network subscriber access switching subsystem (ASS_7: No. 7 signaling system).

In the subscriber access switching subsystem (ASS_S), a call processing function for a subscriber accommodated at an exchange and a call processing function for an ISDN subscriber are performed by an access switching processor (ASP). In addition, the inter-station circuit call processing function accommodated in the trunk subscriber access switching subsystem (ASS_T) is performed by the ASP.

In the common signaling subscriber access switching subsystem (ASS_7), the functions of the message transfer part (MTP) and the signaling connection control part (SCCP) of the common signaling network (No. 7) are ASP and signaling messages. Signaling Message Handling Processor (SMHP).

The network subsystem 20 provides a number translation processor (NTP) and a network for the number translation function, routing control, and space division switch control functions, which are call processing functions commonly required in the multiple access switching subsystem 10. It is performed by an INP (Interconnection Network Processor).

The central control subsystem 30 performs the operation and maintenance functions of the system. The multiple access switching subsystem 10 and the central control subsystem 30 are each connected to the connection network subsystem 20 via a local data link (LDL) to form an interprocessor internal communication network.

2 to 4 are flowcharts of an embodiment of a method for processing a service by a digital subscriber according to the present invention.

FIG. 2 is a flowchart illustrating an operation of the electronic switchboard (TDX-10) receiving a service registration request from a subscriber to activate a service, and is mounted in ASS_I, an N-ISDN subscriber control module, and registering another service. Like the cancellation and cancellation is performed in the additional service processing module. First, if a call setup (SETUP) request message is received from the subscriber (201), it is processed easily (202) and transmits a setup response message (SETUP ACK) for the call setup request to the subscriber (203). Thereafter, if an information message about a service request is received from the subscriber (204), the service code is translated (205). At this time, the subscriber first enters a special digit * to indicate separation and registration with the general call when entering the service code, and the specific code (the number 1 is a special number function, the number 2 is a national call, the number 3 is a local foreign call, 4). The call must be a long distance code and a service code of 1 to 5).

Next, when the translation result of the service code is a call restriction service registration request by the subscriber, it is determined whether the service can be provided to the subscriber (206).

As a result, if the service registration request from the originating subscriber is not allowed to register, the subscriber is notified that the registration is impossible through the DISCONNECT message (211), and the call is released according to the general call release procedure (212, 213). ).

If it is determined that the service registration request from the subscriber is allowed to register, the call restriction type is received using an additional information message (207). Here, the call restriction type uses digits of 1 digit (1: special number function, 2: national call, 3: city other country call, 4: long distance call, 5: international call), and indicates * as the end indicator of information. It must be included at the end of the. Then, the received call restriction type is analyzed (208) to determine whether it is valid information (209).

If it is determined that the information of the call restriction type received is an abnormal value (i.e., the information of the call restriction type is not 1 to 5), the requesting subscriber is notified by using a DISCONNECT message that the reception of wrong information is received ( 211), release the call using the N-ISDN subscriber-network signaling procedure (212, 213).

If it is determined that the received call restriction type information is valid, the call restriction type is stored and information displayed on the call restriction service by the subscriber (that is, the information displayed on the calling subscriber's screen display device: DCRU Service OK [M] : 00 D: 00 H: 00 M: 00]) (210), informs the subscriber that the service has been registered by using the DISCONNECT message (that is, the announcement broadcast information to the calling subscriber: 00 month After 00 00 00 00, the called service has been registered) (211), and the call is released using the N-ISDN subscriber-network signaling procedure (212, 213).

3 is a flowchart illustrating a process when a call subscriber requests a call connection to a called subscriber by activating call restriction service by a subscriber.

3A is a flowchart of an outgoing call processing in which a call restriction service by a subscriber is activated to exceed a call restriction range. First, when a message for a call setup request is received from an originating subscriber (301), call acceptance processing (302) is performed to transmit a setup response (SETUP ACK) message to the originating subscriber (303).

Thereafter, after checking the category of the subscriber from the exchange (304), it is determined by analyzing the registered call type (305).

If it is determined that the service is activated, the caller can hear the call announcement service information (that is, the service that has been registered since 00/00/00/00) and the display device (ie, DCRU Service). OK [M: 00 D: 00 H: 00 N: 00]) to notify the calling subscriber (306), and to notify the calling subscriber (DISCONNECT) message (307). Next, if the call is released using the N-ISDN subscriber-network signaling procedure (308), the release is completed (309).

As a result of the determination, all calls received by the deactivated service are deactivated and are processed normally as in the normal call (310).

3b is a signaling flow diagram of a basic call in which a call restriction service is activated by a digital subscriber in an N-ISDN exchange, and the basic call processing is based on the enbloc method (see CCITT Recommendation Q.931). Take a look.

First, upon receipt of a call setup message from the sub-A, the originating Digital Subscriber Circuit Mode Control (DCC-a) block verifies that the requested call is speech. The destination number is obtained and a country number translation request (PfxTransRQ) is performed using a Number Translation (NTR) block, and the IntCallRP or OutgoingCallRP is received from the Number Translation (NTR) block. Thereafter, when the originating digital subscriber circuit mode control (DCC-a) block makes the called party number translation request (CdNoTransRQ) with the number translation (NTR) block, the number translation (NTR) block receives the incoming digital subscriber circuit mode control (DCC-b). A call occupancy request (DigCdSubsSzRQ) is made in a block. Next, when the incoming digital subscriber circuit mode control (DCC-b) block makes a request for outgoing information (DigCgInfoRQ) with the outgoing digital subscriber circuit mode control (DCC-a) block, the outgoing digital subscriber circuit mode control (DCC-a) block Connects voice switch (time switch, space switch) and transmits telephone call property value (DigCgInfoRP) to incoming digital subscriber circuit mode control (DCC-b) block. Then, the incoming digital subscriber circuit mode control (DCC-b) block notified of the originating information transmits a call setup (SETUP) message to the called party (sub-B) to notify the incoming call.

Then, the incoming digital subscriber circuit mode control (DCC-b) block sends the call (ALERT) and response (CONNECT) messages received from the called party (sub-B) to the outgoing digital subscriber circuit mode control (DCC-a) block. The call enters the call.

If a call is released in a call state, any of the originating and receiving subscribers (sub-A and sub-B) can be released, and the digital subscriber circuit mode control (DCC) block receiving the release notification from the subscriber is the counterpart digital subscriber circuit. The mode control (DCC) block may inform the release (DigCgReIRP, DigCdReIRP) and complete the call release.

The signal flow as described above is shown in FIG. 3C.

4 is a flowchart of an operation process in which a TDX-10 exchange receives a service cancellation (#) request from a subscriber to cancel a service.

First, when the TDX-10 exchange receives a SETUP message from the subscriber (401), it processes the call acceptance (402) and sends a SETUP ACK message to the subscriber (403). Thereafter, when an information message is received from the subscriber (404), the service code is translated (405). At this time, the subscriber first enters #, a special digit indicating the purpose of separation from the general call and the cancellation of service when the service code is transmitted, enters the one-digit service code, and then displays * as the end indicator of the information. Should be included in

Next, in the case where the translation result of the service code is the cancellation request made by the subscriber, the subscriber's category is examined to determine whether the service is activated (406).

If it is determined that the service is not activated, the subscriber is notified that it cannot be canceled using the DISCONNECT message (407), and the call is released using the N-ISDN subscriber-network signaling procedure (408). The release is completed (409).

As a result, after deactivating the call restriction service state by the subscriber in the case of the minimum request from the subscriber in the service activation state (410), the announcement broadcast information to the calling subscriber to the subscriber (ie 00 00 00 00 00 Service was canceled using the DISCONNECT message via the information displayed on the calling party's display (i.e., DCRU Service Canal OK) and notified that the service was canceled (411). When the call is released using the ISDN subscriber-network signaling procedure (412), the release is completed (413).

As described above, according to the present invention, when a subscriber connected to an N-ISDN exchange registers a service requested by his subscriber to the exchange according to a simple registration procedure through a terminal device, the exchange is configured for all outgoing calls. The call restriction service of the calling party can be provided to the calling party through the announcement and the display device of the terminal. In addition, the present invention can be applied to all N-ISDN exchangers using the N-ISDN subscriber-network signaling of the International Standard (CCITT) without adding the functionality of the N-ISDN terminal device, thereby reducing the economic burden have.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to.

Claims (5)

In the method of processing call restriction service by digital subscriber applied to distributed control system, if service called by subscriber is registered at exchange, recording announcement is sent to outgoing subscriber so that the exchange can limit all outgoing calls. The first step of providing a service success message through the display device of the broadcast and the subscriber terminal: When the service failure is called by the subscriber to provide a service announcement message and the service failure message to the calling subscriber through the display device; A second step of releasing a related call; and a third step of performing a call restriction service by checking a range of the exchange when the call is attempted by a service-activated subscriber. How to handle call restriction service by. The method of claim 1, wherein the first step comprises: when a SETUP message is received from the subscriber, accepting a call and sending a SETUP ACK message to the subscriber; A fifth step of determining a translation result of the service code when an information message is received; a sixth step of storing the called information and activating the service when the call restriction service registration request is made by the subscriber as a result of the determination of the fifth step And as a result of the determination of the fifth step, if the calling subscriber who is not allowed to register the service is notified through an audible sound and a cut message that registration is not possible through the screen display device, and releases the call according to the general call release procedure. A method for processing call restriction service by a digital subscriber in a narrowband integrated telecommunication network switch comprising the seventh step. The method as claimed in claim 1, wherein the second step comprises: when a call setup message is received from a subscriber, a call acceptance process is performed to send a setup response message to the subscriber; and a service code is received when an information message for a service request is received from the subscriber. A fifth step of determining a translation result of the second step: if the cancellation request is made from the subscriber in the service deactivation state, a sixth step of deactivating the service state called by the subscriber; and an audible sound to the subscriber and the screen display device And a seventh step of releasing a call and notifying that the service has been canceled by using a truncation message through the narrowband integrated telecommunication network switch. According to any one of claims 1 to 3, wherein the third step, when the call setup (SETUP) message is received from the calling party, the eighth step of analyzing the call range by the subscriber by analyzing the called number: As a result of the analysis of the eighth step, if the service is activated, the caller is notified of the recording guide service called by the subscriber through the audible sound and the screen display device, and the call is released. As a result, the call restriction service processing method by the digital subscriber in the narrow-band integrated telecommunications network switch comprising the tenth step of processing normal outgoing calls if the service is inactivated. 5. The method of claim 4, wherein the basic call signaling process in which the service is activated and the call is set up, upon receiving a call setup message from the calling party, the calling digital subscriber circuit mode control block checks whether the requested call is voice and the called number. Step 11 for transmitting a PfxTransRQ message to a number translation block by receiving a number translation block; when an IntCallRP or OutgoingCallRP message is received from the number block, the originating digital subscriber circuit mode control block The twelfth step of transmitting a called number translation request (CdNoTransPQ) message to the number translation block: The thirteenth step of transmitting the called occupancy request (DigCdSubsSzRQ) message to the incoming digital subscriber circuit mode control block: the incoming call A call request information (DigCgInfoRQ) message is received from the digital subscriber circuit mode control block. Step 14, the calling digital subscriber circuit mode control block connects a voice switch and transmits a telephone call property value (DigCgInfoRP) message to the calling digital subscriber circuit mode control block: the called digital subscriber circuit notified of the calling information. A step 15 in which the mode control block sends a call setup message to the called party and notifies the incoming call: the called digital subscriber circuit mode control block receives an alert and response message received from the called party; 16th step of transmitting a call to the outgoing digital subscriber circuit mode control block to set a call state: and the digital subscriber circuit mode control block receiving the release notification from the subscriber releases the counterpart digital subscriber circuit mode control block (DigCgRelRP, DigCdRelRP). Including the 17th step of notifying the message and completing the call release A method for processing call restriction service by a digital subscriber in a narrowband integrated telecommunication network switch.