KR920005583B1 - Special service system - Google Patents

Abstract

A checking finds whether the first digit of an incoming dialed signals represents a special function code. If it does not represent a special function code, the call is processed as a normal call, while if it does, the operation transits to a control number receiving mode to receive a special function service code digit. Then the gradation of the subscriber is discriminated, and a path word digit is received. Then a checking finds whether the received path word corresponds with the already registered path word. If it does not correspond, it is processed as an error, while if it does correspond, the operation transits to a control number receiving mode to check whether the received secret code corresponds with the code for servicing.

Description

How to handle password and register password for special function service of exchange system

1 is a hardware block diagram of an electronic switching system for carrying out the present invention.

2 is a flowchart illustrating a process of performing a password call processing according to the present invention.

3 is a flow chart of registration password change according to the present invention.

4 and 5 are dialing function code tables and password tables.

The present invention relates to a method for performing a special service function of an electronic switching system, and more particularly, to a call processing method of a password and a method of changing a registration password for protecting the use of a special function of a group telephone exchange.

Collective telephone exchange refers to an exchange that installs a local electronic switching system in a group of subscribers having a common purpose to provide various special services to the subscriber.

Special service functions that subscribers can register at the exchange by telephone have various functions besides functions such as WLN (Warm Line), WKP (Wake up), ABD (Abbreviated Dialing) and CTX (Call Transfer).

The conventional electronic switching system is capable of performing various special service functions as described above, and the subscriber who is aware of the special service access code can change the registered contents.

However, the conventional method of changing the contents registered by the special service access code as described above has the following problems. For example, as a call control function, when a subscriber who is able to reach an international call is away, a third party who recognizes the calling class service registration code even if the subscriber registers the calling class only in the city by telephone There has been a problem that can be easily changed to use the international issue.

Accordingly, an object of the present invention is to provide a password call service method in which an exchange system having a special service function is assigned to perform a special service registered only when a password matches.

Another object of the present invention is to provide a method for changing and registering a registered password only when a registered password and a newly inputted password match when the registered password is registered as a dialing digit.

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

1 is a hardware block diagram of an electronic collective switching exchange system for carrying out the present invention, which is a known electronic switching system currently used.

In the first diagram, reference numeral 100 is a subscriber as a telephone, 102 is an analog subscriber card, 104 and 122 are digital concentrators, 106 and 116 are tone generators, and 108 is a dual tone multi-frequency receiver (DTMF-R). , 110 is a ring generator, 112 is a subscriber signal processor, 113 is an analog subscriber matching processor, 114 is a switch, 118 is an R2 signaling generator, 120 is a relay signal processor, 124 is trunk trunk Circuit, 126 is a trunk trunk matching processor, 128 is an analog trunk circuit, 130 is an analog trunk matching processor, 132 is a system maintenance processor, 134 is a subscriber control processor, 136 is a number translation processor, 138 is a switch control processor, 140 Is the trunk line control process, 142 is the system operation processor, 144 is the network synchronous control processor, 146 is the subscriber in-test control processor, and 148 is the subscriber out Host (Out-Test) processor, 150 is a subscriber automatic test control processor, the control processor 152 is output, the alarm system 154 is matched processor, 156 is a magnet tape matching processor 158 is a disc matching processor.

2 is a flow diagram of a password call processing according to the present invention, a special function code determination process for searching whether a first digit of a dialing digit input from a subscriber is a digit of a function code for receiving a special possibility, and the special function code determination process In case the input digit is not a special function code, the general call processing is performed, and when the special function code transitions to receiving the control number, the special function service code digit is input from the subscriber and the subscriber is a password class subscriber. A subscriber digit judging process for searching for a password digit, and a password digit receiving step of transitioning to a password receiving standby and inputting a password digit from the subscriber when the subscriber's grade is a password class subscriber in the subscriber's rating judging process, and the password digit receiving process. Received The process consists of a password matching determination process for searching whether the digits match the registered password and error processing when there is a mismatch, and for surrendering the special function according to the control station number inputted after transitioning to the control station waiting to receive a match.

3 is a flowchart for changing a registration password according to the present invention, wherein the first digit of the subscriber's dialing digit is a special function code retrieval process for retrieving a special service registration code for receiving a special service, and an input digit during the special function code determination process. Performs a special call processing when the function code is not a special function code, transitions to receiving a special function code temporary control station number, inputs a special function service digit code from a subscriber, and performs the special function service digit input process. After that, if the input digit is searched for a password change code or not, it services normal special functions, and if it is a change code, a password change subscriber registration determination process for retrieving whether the subscriber is a password class subscriber and a subscriber in the password change subscriber rating judgment process. Password When the call registration class subscriber is not connected, an incoming call is processed for error, and in the case of a password registration class subscriber, a password reception process for receiving a dial digit which is input by transitioning to a control station number reception state and an input digit in the password reception process are performed. A password change registration process is performed, which searches for a registration password on the password table, and handles an error when there is a mismatch, and registers the digits inputted after the control station number is received in the password table.

4 is a table of dialing function codes according to the present invention, which is a two-byte buffer, which is allocated to each subscriber.

5 is a password table, which is composed of a two-byte memory to store a total of four digits as a BCD code.

In this case, the tables of FIGS. 4 and 5 are installed in the memory area of the analog subscriber processor 134.

An operation example of FIGS. 2 and 3 of the present invention will now be described in detail with reference to FIGS. 1, 4, and 5.

First, in describing the subscriber password call processing, it is assumed that the password for the special service function is registered in the password table as shown in FIG.

Now, when the subscriber 100 is hooked off, the analog subscriber matching processor 113 (if the subscriber 110 is a pushbutton telephone, the subscriber signal device processor 112) detects it in FIG. 11 and controls the subscriber. Report to processor 134. If the subscriber control processor 134 receives the hook-off state of the subscriber 100 in the process of FIG. 12 (12), if the subscriber 100 detects the state of the subscriber 100 in the process (13) and hooks it off from the idle state (15). In the process, the codec connection is requested to the analog subscriber matching processor 113, and in step 16, the call path of the subscriber 100 is allocated. The subscriber control processor 134 connects the dial tone generated from the tone generator 108 through the analog subscriber card 102 to supply the dial tone to the subscriber 100 in the process of FIG. The dial tone state of step 2 (18) is entered.

Meanwhile, the analog subscriber matching processor 113 that receives the codec connection request from the subscriber control processor 134 in FIG. 2 (19) accesses the codec to the subscriber 100 in step 20. Thereafter, when the subscriber 100 dials the first digit, the analog subscriber matching processor 113 (or the subscriber signaling device processor) detects this and reports it to the subscriber control processor 134 in step 21. The subscriber control processor 134 Receives a dial digit transmitted from the analog subscriber matching processor 113 in step 22. At this time, the subscriber control processor 134 blocks the dialing tone generated from the tone generator 108 in FIG. 2 (23), and the digit received in FIG. 2 (24) is used to register and cancel the special service. Search for the first digit code * or #.

If the first digit received as a result of the search in step (24) is not #, *, the subscriber control processor 134 performs general call processing in step 2 (25). In this case, the general call processing means that the subscriber 100 performs a call service according to a dial digit dialed.

If the first digit of the reception digit is *, #, the state of the subscriber 100 is shifted to the state of receiving the control station number in the process of FIG.

Then, when the subscriber 100 dials continuously, it is received by the subscriber control processor 134 in steps 2 (27) and (28) by the path as described above. In this case, the digit received in the processes of FIGS. 2 and 27 is input after the first digit reception indicating the start of the special service code, and is a control number which is a substantial service code.

The subscriber control processor 134, which has received the control station number in step 2 (27) and 28, accesses the contents of the subscriber class database in step 29 to determine whether the subscriber 100 has a secret function. Search for.

If it is determined that the subscriber does not have the secret function of the search result of FIG. 2 (29), the subscriber control processor 134 jumps to the process of FIG. 2 (37) and immediately controls the state of the subscriber (Control Number Recieving). Transition to state.

If it is determined in step 29 that the subscriber 100 has a secret function, the subscriber control processor 134 transitions to the password reception waiting state of step 30. When the subscriber 100 sequentially dials four digits in the password reception waiting state as described above, the analog subscriber matching processor 113 receives the analog subscriber card 102 and transmits it to the subscriber control processor 134. Sending.

At this time, the subscriber control processor 134 receives the password digit reported from the analog subscriber matching processor 113 in steps 2, 31, 32, 33, and 34 and performs step 35. In step 35, the subscriber control processor 134 searches whether the received digit matches the digit registered in the password registration table as shown in FIG.

That is, if the password registered in the password registration table as shown in FIG. 5 matches with the input password, if it does not match, an error processing is performed in step 36 to connect a call tone to the subscriber 100. If the above (35) and the definition search results match the two passwords, the subscriber control processor 134 transitions to the control station receiving standby state in step (37).

Then, when the control station number is input, the subscriber control processor 134 performs the service for the special function code received in the above-described steps (27) and (28), and the subsequent processing is the reception received in step (37). It depends on the control station number. For example, if the received control station number is a call transfer, a call transfer is registered and performed according to a code input later.

The subscriber having the password function as described above changes his or her registration password to the phone according to the needs of the subscriber, which is performed only by the following method.

For example, a subscriber having a password function is executed by hooking off a subscriber 100 to change a registered password, dialing a password change code (eg * and two digits), and dialing the current registration password. If the dialed password at this time and the previously registered password do not match, a busy tone is given at this point to handle the error of the password change, and only if the new dialing digit to be registered is accepted as the password and registered in the registration table.

The above operation will be described below with reference to the flowchart of FIG. 3.

The process until the subscriber 100 receives the control station number by hooking off, i.e., the process (40) to the process (54, 55) in FIG. 3, processes (11) to (25) (26) in FIG. The process is carried out in the same manner.

When the subscriber 100 dials two digits of the special service code "*" and the password change code in the control station number reception state of step 55, the analog subscriber matching processor 113 receives the dialing digits output from the subscriber and receives the subscriber. Report to control processor 134. At this time, the subscriber control processor 134 receives the dial digits output (reported) from the analog subscriber matching processor 113 in the process of FIGS. 56 and 57.

At this time, the subscriber control processor 134 receiving the two digits detects whether the digit received in the process of FIG. 3 (58) is a password change code. If not, the subscriber control processor 134 receives another special service (input service). A function of a special service corresponding to a code), and in the case of a password change code, the corresponding subscription site 100 searches for a subscriber having a password function in step (60). If the subscriber does not have the search result password function in step 60, the subscriber control processor 134 controls the tone generator 106 in FIG. Connect and perform error processing.

If it is determined in step 60 that the subscriber has a password function, the subscriber control processor 134 transitions the state of the subscriber 100 to receiving a password in step 62 in order to recognize the current registration password. If the subscriber 100 then dials the current registration password (4 digits), it is detected by the analog subscriber matching processor 113 and reported to the subscriber control processor 134. 64, 65, 66 will receive it in the process.

At this time, the subscriber control processor 134, which has received the currently input password by the dialing behavior of the subscriber 100, reads and inputs the registered password data of the corresponding subscriber stored in the password table of the subscriber as shown in FIG. Compare with the password. If the current registration password is different from the input password as a result of the comparison in step (67), the subscriber control processor 134 controls the tone generator 106 in step 68 to connect a call tone to the subscriber 100. Process. If it is determined in step (67) that the registration password registered in the password table and the password input by dialing match, the subscriber control processor 134 checks the status of the subscriber in order to receive the password to be changed. In the process, the control station no. Transitions to the receiving state. If the subscriber 100 then dials the password and the end mark (*) to change, it is reported to the subscriber control processor 134 via the analog subscriber matching processor 113.

At this time, the subscriber control processor 134 receives the dial digit reported from the analog subscriber matching processor 113 in steps 70 to 73. At this time, the subscriber control processor 134 up-dates the input of the password to be changed in step 74 to the password table configured as shown in FIG. 5 and transmits the disk backup request information to the system maintenance processor 132. It transmits and controls the tone generator 106 to connect a confirmation tone to the subscriber 100 indicating that the password has been registered.

The subscriber control processor 134 requires the disk backup to the system maintenance processor 132 because the table of the subscriber control processor 134 is a volatile RAM (RAM), the system maintenance processor 132 Passwords changed by backup request are saved to disk.

As described above, the present invention can protect the special service function from others by assigning a password function to the special service call processing, so that the service of various subscribers can be executed.

Claims (2)

A special service method by a password of an exchange which accepts a subscriber having a password function to receive a special function and which serves a special function by the special function code when the subscriber dials a password and a special function code. In the special function code determination process (11-24) for searching whether the first digit of the digit to be a digit of the function code for receiving the special function is serviced, and in the special function code determination process (11-24), the input digit is the special function code. The control station number receiving process (25-28) for performing general call processing when it is determined that it is not, and receiving the special function service code digit from the subscriber by transitioning to receiving the control station number when it is determined that it is the special function code; After performing process (25-28), check whether the subscriber is a password class subscriber. A password for receiving a password digit output from the subscriber by changing to a password digit reception standby state when determining that the subscriber's rating is a password class subscriber in the subscriber's rating judgment process 29 and the subscriber's rating determination process 29. Digit reception process (30-34), and whether the digits received in the password digit reception process (30-34) match with the pre-registered password, error processing when there is a mismatch, and transition to the control station receiving standby when the match And a password matching determination process (35-37) for serving a special function according to the control station number. A method of changing a registered password for accommodating a subscriber having a password function to receive a special function and changing the registered password when the subscriber changes a registered password, wherein the first digit of the digit dialed from the subscriber is a special service. A special function code search process (40-53) for searching for a special service registration code authorization for receiving a call, and when the input digit is determined to be not a special function code in the special function code search process (40-53), general call processing is performed. A special function service digit receiving process 54-57 for performing a special function service code which is switched to receiving the control station number upon receiving a special function code and receiving the special function service code outputted from the subscriber; and a special function service digit receiving process 54 -57) Search whether the input digit after performing is password change code. If not, the subscriber provides a normal special function, and in the case of a change code, the subscriber determines the password change subscriber rating (58-60), and the password change subscriber rating decision (58-60). Password receiving process (61-66) for receiving an incoming dial digit by transferring to a call tone when determining that it is not a password registration class subscriber and transitioning to a control station number reception state in case of a password registration class subscriber; In the receiving process (61-66), it is searched whether the digit received is the same as the password registered in the password registration table, and an error is processed in case of inconsistency. Password change registration process (67-74) Password change registration method.

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