KR100387080B1 - Method for checking and rejecting calling number of origination subscriber - Google Patents

Abstract

PURPOSE: A method for checking and rejecting a calling number of an origination subscriber is provided to allow a user to reject an incoming call from an undesired origination subscriber and immediately check a phone number of the origination subscriber. CONSTITUTION: When an origination subscriber attempts a call, a call control processor of the origination side informs a destination side accordingly. An NTR of the destination side requests destination occupancy from an ASC(Analog Subscriber Control) of an ASS(Access Switching Subsystem) to which a corresponding subscriber is connected(211). The destination side informs the origination side about the destination occupancy(212). The origination side outputs a number of the origination subscriber and the destination side receives the number(213). The destination side compares the received number with select call limit registration numbers of a destination subscriber(214). If the received origination number is included in the select call limit registration numbers, the destination side rejects the call(214), and makes a corresponding announcement(215).

Description

How to check caller ID and reject call

The present invention relates to a call service method of an electronic switchboard, and more particularly, to a method for determining the presence or absence of an incoming call service originating from a specific originating subscriber.

Generally, in case of missed guidance and incoming call prevention service provided by electronic switching center, if subscriber registers the function using a specific code, the subscriber cannot respond to all outgoing calls to the subscriber. Broadcast announcements. In addition, when the caller ID tracking function is registered, when the subscriber having the caller ID tracking function responds and the caller ID tracking is used, the information of the caller subscriber is output through the output device of the place where the switchboard is located. Here, the information of the calling subscriber may be a calling number and a line category of the calling subscriber, and the line category may be a general subscriber, a digital subscriber, a public telephone, a subscriber of a private exchange, or the like.

However, in the subscriber service of the electronic switchboard, the function is serviced for all the incoming subscribers, not the specific subscribers, in the case of the absence guidance and the incoming call blocking service. In addition, even if the subscriber registers the corresponding service, the calling guard accumulation function cannot check the calling subscriber, and therefore, there is a problem in that it cannot satisfy the needs of subscribers requiring various functions.

Accordingly, an object of the present invention is to provide a method for limiting an incoming call for a specific subscriber in an electronic switchboard.

Another object of the present invention is to provide a method for identifying a calling party's number using a telephone in an electronic switching system.

In order to achieve the objects of the present invention, a call service method of an electronic switching system includes a telephone number received when a subscriber telephone outputs a selective call restriction registration code and a telephone number in a hook-off and a call state. The process of registering, deleting the selected call restriction delete code and caller ID when the subscriber telephone is hooked off, and deleting the corresponding calling party number registered when the subscriber telephone is hooked off, and entering the selected call restriction confirmation code while the subscriber telephone is hooked off Controlling the device to output the registered selective call restriction originating numbers, and when the incoming call is generated, output a call forwarding notification signal including a request of the calling party's number, and receives the incoming calling number and the registered selective call restriction origination. It is characterized by comparing the defenses and rejecting incoming calls.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same parts in the figures represent the same reference signs wherever possible.

1 is a diagram showing the configuration of an electronic switch in order to carry out the present invention, the central control subsystem (CCS) performs the operation and maintenance of the electronic switch. INS (Interconnection Network Subsystem) performs centralized call processing. ASS (Access Switching Subsystem) performs a function of performing distributed call processing. The ASS includes an ASS connected to a subscriber to perform an interface function with the electronic switch and an ASS connected to a relay line to perform an interface function with the forward switch.

In the electronic switch having the above configuration, the ASS connected to the subscriber registers, cancels, and announces the selective call restriction function in the Subscriber Servise Control (SSCO) and Digital Subcriber Supplementary Service Control (DSSC) blocks in charge of subscriber service. It checks whether the calling party's selection call is restricted in ASC (Analog Subcriber Control) and DCC (Digital Circuit-Call Control) block, which performs basic call processing. Perform call restriction processing

The present invention includes a process of registering, deleting, confirming, and receiving and rejecting an incoming call when an incoming call is generated.

The subscriber of the base station looks at the registration process of the selective call restriction function using the subscriber telephone. The registration method includes a method in which a subscriber sends and registers and a method of registering in an incoming call.

Looking at the registration process by the former, the subscriber dials the registration code, the SCR code and the calling party's number with the dial tone after the hook-off. For example, after hooking off, dial "* YYNNDDDDDDDDD *". Where YY is a special service code, NN is 01-10 as an SCR code, and D-D represents a calling number. In this case, the calling code does not need to enter an area code in case of a downtown code, and dials an area code in case of a long distance. If the calling code to be stored exists in another SCR code, it is treated as an error.

Looking at the registration process by the latter, since the operation is registered in the incoming call state, if the dial tone is heard after the hook flash (hook flash) to register by dialing the function registration prefix (prefix) or SCR code. At this time, when registering by hoc flash among incoming calls, if the incoming call is a stimulus call, if the area is a multi-area system, if the first number of the calling number is not 0, it is added and stored. Add number and save.

In addition, when the incoming call is incoming, the first stored number is added if it is not "0". The registration number (calling number) cannot be registered if the registered subscriber is registered in duplicate, but the same number is registered in the same code. If you register without a code after hook-flashing during a call (ie, registration code #, *), the user registers with a code that has not been used yet. In addition, only one registration per call is possible, and the calling code of the registered code can be deleted by the subscriber during the call and the incoming call. You can also specify and delete a specific code. If you use a delete code and "*" (the last digit) without specifying a code, all registered codes are automatically deleted. The registration of calling number stores index number of digits of calling code and calling number and calling number by indexing line number of called subscriber in pool type data structure for storing calling number of SCR in electronic switching center. .

For example, the hook flash during the incoming call registers the calling number. For example, after the hook flash,-* YY * or * YYN * or * YYNN * is dialed. Where YY is a special service code and NN is 01-10 as an SCR code. At this time, if the incoming call is a local call, as described above, if the first number of the calling number is not "0", it is added and stored, and if it is a singular area system, it is stored by adding its area code and calling number. If the incoming call is incoming, it is stored if it is not the first one of the calling number. In addition, if the subscriber does not dial the SCR code, the SCR code that is not in use is found and stored.

Secondly, the subscriber deletes the registered calling number using the subscriber's telephone. Granting and deleting the selective call restriction function to the subscriber, the response number input by the selective call restriction code by the operator, and the deletion by the input coat are performed by the operator request controller (ORC) and the ISDH (ISDN) belonging to the data handling subsystem (DHS) in CCS. Subscriber Data Handling) blocks. Input at this time is REG-ISVC: DN = a, SSVC = b, [SC = c], [ODN = d]; Becomes the form of. Where a is a subscriber number, b is a special service function (SCR), c and d are optional and if the operator directly enters the calling code number by code, c is the SCR code and d represents the calling number. The ORC or ISDH block receiving the dialing information stores the input data in a database used by the subscriber and outputs the result to the inputted telephone.

Thirdly, the subscriber checks the registered calling number using the subscriber's telephone. There are two methods of confirming the registered calling number by using the editable announcement function and confirming by dialing the calling party number. First, when checking with the editable announcement function, the subscriber reads the data stored in the code when the selected call restriction confirmation code and "SCR code + *" are outputted to the subscriber by the voice conversion device. do. If the selected call restriction confirmation code and " * " are pressed without the SCR code, the calling number is sequentially read from the stored data registered by the SCR function registered subscriber and outputted to the subscriber by the voice conversion device. The ISDN subscriber additionally outputs a message (display information) to display on the calling terminal with the display device.

Looking at the operation of confirming the registered calling number registered as described above, for example, first when dialing the calling subscriber number directly * Y1NNDDDDDDDDD *. In this case, the received digit (D-D) is checked by NTR for validity of the input number, and the received digit is compared with the received number stored as NN (SCR code). Secondly, when checking with an editable announcement, hook up and dial * Y1NN * or * Y1NN * or * Yl *. After confirming the validity of the calling number stored in the NTR by obtaining the number stored in the SCR code, confirm the calling party's calling number with the edited announcement from the NTR. In the case of dialing * Y1 *, an edit type announcement is connected in order by calling party number for each existing registration code.

Fourth, the operation of serving an incoming call according to whether a calling number is registered will be described with reference to FIG. If the originating call is registered by the subscriber holding the SCR, the calling party's call control processor notifies the called party when the calling party attempts an incoming call. Then, the NTR of the called party requests call occupancy to the ASC of the ASS to which the corresponding subscriber is connected in step 211. Then, in step 212, the called party reports the called party to the calling party according to the called party's request. Here, if the called subscriber is a subscriber having a selective call restriction function, the incoming call point notification includes a request of a calling number. The calling party then outputs the calling party's number, and the called party receives the calling party's number. The called party compares the outgoing call received in step 214 with the selected call restriction registration numbers registered by the called subscriber. If one of them matches, the called party performs the SCR service that rejects the incoming call in step 214, and the call is rejected in step 215. Connect announcements to announce that

In this process, a subscriber can register a certain number of outgoing calls in the comparison process between the received caller ID and the pre-registered selected call restriction caller ID. Therefore, even if there is no caller ID registered for each incoming call, a certain number of databases must be read. do. To prevent this unreasonableness, add a bit-type flag to indicate the code used to register the selective call restriction and the code used to indicate whether the subscriber service R_SUBS_SERVlCE_1 is held, and register the bit of the corresponding SCR code at the time of registration. Reset the corresponding bit when setting and clearing. Therefore, when comparing the calling number according to the incoming call, only the SCR code set in the corresponding flag of R_SUBS_SERVICE_1 is read.

As described above, corresponding information may be registered and deleted to selectively respond to an incoming call using the subscriber's telephone. Therefore, if you do not want to receive a call from a specific subscriber, you can reject the incoming call from the subscriber, you can immediately check the calling subscriber's phone number for the incoming call through the phone,

1 is a diagram showing the configuration of an electron exchanger for carrying out the present invention.

2 is a flowchart illustrating a process of determining whether an incoming call is rejected by comparing a registered number and a calling number when an incoming call occurs according to the present invention.

Claims (1)

In the call service method of the electronic switchgear, Registering the received subscriber number as an incoming call restriction number if a call restriction code and a subscriber number for incoming call restriction are received after hooking off; Supplying a hook flash tone in a busy state, and registering the called party's number as an incoming call restriction number when a call restriction code is input in a dial tone supply state; When the deletion code and the subscriber number received after the hook-off are received, releasing the incoming call restriction of the corresponding subscriber number; When the hook-off number call confirmation code is input, the incoming call limit service method of the electronic switchboard, characterized in that the process of guiding the registered incoming call restriction subscriber number through a guide device.