KR960003972B1 - Method for restricting calling subscriber number - Google Patents

Abstract

responding to a mode selecting signal inputted in a program mode and setting state information of calling number limitation/permission; responding to a dial digit to analyze the set state information and when the analyzed result is a first display mode, for setting the calling number information as the limitation information; when the result is a second display mode, for setting the calling number information as the permission information; outputting a set-up message inclusive of the set calling number information to a network termination; and responding to the time when a calling number display information within the set-up message is the limitation information, transmitting the set-up message in which the calling number information is deleted to a calling party.

Description

Calling Number Transmission Control Method of Telephone in Integrated Information Communication Network

1 is a hardware block diagram of a Telecommunication Telephone.

2 is a flow chart of a conventional call origination control.

3 is a call number programming control flow chart according to the present invention.

4a to 4c are caller ID control flowcharts according to the present invention.

* Explanation of symbols for main parts of the drawings

10 microprocessor 12 transmission unit

12: terminal interface controller 16: ROM

18: RAM 20: display unit

22: voice processing unit 24: key matrix

26: network termination device (NT)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling an outgoing number of an ISDN telephone, and more particularly to a method for controlling outgoing caller's telephone number.

ISDN telephone refers to a telephone which is connected to an integrated telecommunication network and has a function of transmitting and receiving voice data and information data through a 2B + D channel. Such an ISDN telephone is connected to an "S" interface of a network termination device (hereinafter referred to as "NT") of a network to execute a call-related service. Such an ISDN telephone has at least two sending modes and sends a called number according to the transmission mode. The transmission mode includes an overlapping transmission mode and an enblock sending mode. The overlapped transmission mode is a transmission mode for dialing a called number after listening to a dial tone from the network side, and the batch transmission mode is a transmission mode for dialing a called number after listening to a local dial tone generated in an ISDN telephone. Transmission of called number according to each transmission mode is as follows.

Overlap transmission mode: When the ISDN telephone is off hooked, the ISDN telephone sends a set-up message to NT. When the NT sends a dial tone in response to the setup message, the user hears the dial tone, and when the user presses the called number, the called number corresponding to the called number is sent to the NT.

Batch Send Mode: If you off-hook the ISDN phone, you will hear the local dial tone occurring within the ISDN phone. If the user presses the called number after listening to the local dial tone, the ISDN telephone sends a setup message including the called number to NT.

The configuration of the ISDN telephone having the above transmission mode is as shown in FIG.

1 is a hardware block diagram of an integrated telecommunication network telephone, which includes a microprocessor (MPU) 10 for overall control of an ISDN telephone, and a transmission line of an “S” interface under the control of the MPU 10. A transmission unit 12 for transmitting and receiving data to and from the NT 26, and a data terminal (not shown) via an RS-232C line (hereinafter, referred to as a "serial data line"). A terminal interface controller 14 for interfacing data between the data terminal and the MPU 10 by control, and an operating program of an ISDN telephone are stored, and a ROM 16 for outputting this under the control of the MPU 10. And a RAM 18 for storing data processed by the control of the MPU 10, a display unit 20 for displaying an operating state of the ISDN telephone under the control of the MPU 10, and the MPU 10; Control of voice passages by means of The voice processing unit 22 which executes the control of F, the ring or the tone control to form a voice call path, and controls the generation of various ring or tones related to a call, and generates various control data by a user through key input to generate the voice call path. It consists of the key matrix 24 supplied to (10).

As shown in the first diagram, the configuration of the ISDN telephone is to transmit and receive digital data from the terminal interface controller 14 of the voice signal of the voice processing unit 22 to the NT 26 of the ISDN network through the channel of " 2B + D ". All can be configured using a well-known circuit.

2 is a flow chart of a conventional caller ID control.

First, referring to FIGS. 1 and 2, a conventional call number transmission control process will be described in detail.

Now, when the user selects one of the above-described superimposition mode or batch transmission mode by using the key installed in the key matrix 24 (step 30), the MPU 10 transmits to the called number according to the selected transmission mode. The setup message is transmitted to the NT 26 through the transmitter 12 (step 32). By the above operation, the NT 26 receives the setup message of the ISDN telephone transmitted from the transmitter 12 (step 34). Upon receiving the setup message as described above, the NT 26 reads the state memory of the ISDN telephone in step 36 to determine whether the calling number expression is restricted before sending the setup message to the called party. If it is determined that the calling expression display restriction of the corresponding telephone (originating telephone) is detected in step 36, the NT 26 deletes the calling number from the setup message to be sent to the called party in step 38. The NT 26 transmits the setup message to which the calling party number is deleted in step 42 to the called party. At this time, the called party reads the information of the calling number display area in the received setup message and displays the information accordingly. For example, if there is a caller number, the caller's phone number is displayed. If not, the caller's phone number is not displayed.

On the other hand, if the NT 26, which reads and retrieves the status memory of the ISDN telephone, checks whether the calling number representation restriction is restricted in step 36, is not the calling number restriction, the NT 26 sends a setup message to the called party in step 40. Add the calling number and transmit to the called party by performing the above 42 steps. The called party receiving the setup message to which the calling number is added as described above extracts the calling number from the setup message received by the operation 44 described above, and displays the calling party's telephone number through the display unit 20 accordingly. .

However, in the conventional caller ID control method operated as described above, the display restriction of the caller ID is executed by the control of NT so that the calling party's telephone number is transmitted to the called party regardless of the caller's intention. That is, the conventional method as described above has a problem that the display of the calling number representation is allowed in the NT 26, and the calling number is displayed against the caller's intention by displaying the calling number on the called party regardless of the intention of the calling party.

It is therefore an object of the present invention to provide a method for suggesting the transmission of a calling party's number under the control of a calling party in an ISDN telephone.

It is still another object of the present invention to provide a method of restricting a caller's telephone number under control of a calling party in a communication network for transmitting and receiving digital information data and voice data using a 2B + D channel.

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

3 is a flowchart of a call number programming control according to the present invention, which includes the following control procedures.

A mode selection process for analyzing caller ID restriction / allowed key application in response to a key input in a program mode state, and a status flag for displaying and displaying room number corresponding to a program state analyzed in the analyzed mode analysis process ( It is composed of display mode setting process for setting Flag.

4A to 4C are caller ID control flows according to the present invention, which encodes information in the caller ID information area into the state of the corresponding display mode in response to the state of the program of FIG. 3 when a dial digit is input. And the calling number information encoding process of transmitting the setup message including the encoded calling number information to the network side, and the calling number information included in the received setup message in response to the setup message transmitted from the calling number information encoding process. A display mode analysis process for analyzing a display mode of the caller, and a caller ID transmission state analysis process for searching for a caller number representation display state in the network when the display mode analyzed in the display mode analysis process is determined to be a restricted mode of the caller ID; Calls to setup message when caller ID display state is allowed during analysis of caller ID transmission status. Transmitting the setup message to the called party by adding the number information to the called party and deleting the calling number from the setup message when it is determined that the calling number is restricted in the display mode analysis process and the calling number sending status analysis process; Receiving the setup message transmitted in the setup message transmission process is a call number display process for displaying the coded calling number in the call number information area.

Hereinafter, with reference to the accompanying drawings an operation example of an embodiment according to the present invention will be described in detail.

If a user using an ISDN telephone now selects a program key located in the key matrix 24 in FIG. 1, it is entered into the MPU 10. FIG. The input of the key of the MPU 10 is input by scanning the key matrix by an internal 2 msec timer interrupt. At this time, the MPU 10 having the same operation procedure as that of FIGS. 3 and 4A determines that the program mode key signal is input in step 50 of FIG. 3, and enters the program mode. The MPU 10, which has entered the program mode, searches in step 3 52 to see if a caller ID representation is entered. If the user selects an allowance key that allows the display of the calling number or a restriction key that restricts the calling number, the MPU 10 determines that the calling number expression table is entered. In step 52 of FIG. 3, the MPU 10 that determines that the caller ID expression is input is searched whether the key input in step 54 is the caller ID restriction or the allow key input, and the result of the RAM 18 is determined. Write in the non-volatile RAM area. For example, when the calling number restriction key is input, the MPU 10 sets and returns the calling number display restriction status flag set in the nonvolatile region in step 56 and returns when the calling number allowance key is input. The MPU 10 sets and returns the calling number display allow status flag set in the nonvolatile region in step 58. Accordingly, by the operation as shown in the third drawing, the user sets a state in the RAM 18 indicating whether to limit or allow the expression display state of the calling number.

As described above, when the user sets the display mode for deciding whether to allow or restrict the display of the calling number as the program mode, when the user dials the telephone number of the called party after the user hooks off the ISDN telephone, the MPU ( 10) is entered. At this time, the MPU 10 determines that the dialing digit is input in step 60 of FIG. 4A, and transmits the called number according to the transmission mode in step 62. FIG. Here, the transmission mode refers to the overlapped transmission mode and the batch transmission mode described above.

For example, if the current transmission mode is the overlapped transmission mode, the MPU 10 transmits a setup message to the NT 26 through the transmission unit 12 in response to the initial off hook as described above, and the NT 26. The transmission mode generates a dial tone in response to receiving a set-up acknowledgment signal transmitted from the transmitter, and transmits a dial digit input afterwards to the NT 26 through the transmission unit 12. In this case, the dial tone may be a dial tone provided from the NT 26 or a dial tone generated by the telephone itself. If the transmission mode is the batch transmission mode, the MPU 10 controls the voice processing unit 22 in response to the off hook. The voice processor 22 drives a tone generator built therein under the control of the MPU 10 to output a dial tone generated by itself to a handset or a speaker (not shown). When the user presses all the called numbers using the dial digit key in the key matrix 24 after listening to the dial tone generated by itself, the MPU 10 sends a setup message including the called number to the transmitter 12. To NT (26).

The MPU 10 controls the display of the calling number representation according to the transmission mode as described above. In the case of overlapping transmission, when the off-hook is detected in step 62 described above, the MPU 10 jumps to step 64 and the called number after the off-hook is transmitted in the batch transmission. 64 is performed before all are pressed and the setup message is output to the transmitter 12. That is, before the MPU 10 transmits the setup message by transmitting to the called party according to the transmission mode, the status flag of the calling number display restriction / display permission set in the area of the RAM 18 in step 64a of FIG. Search the status of to determine if the caller ID representation is restricted or allowed. If it is determined in step 64 that the display of the calling number representation in the phone is limited, the MPU 10 encodes the representation in the calling number information in step 66 with a restriction, and transmits a setup message including the coded calling number information in step 68. Transmit to NT 26 via section 12. However, if the call number representation display in the phone is set to allow state as a result of the determination in step 64, the MPU 10 encodes the representation mark in the call number information to allow state in step 70 and the call number encoded in step 68. The setup message including the information is transmitted to the NT 26 through the transmitter 12.

Accordingly, the ISDN telephone configured as shown in FIG. 1 transmits a setup message including the calling information indicating whether the calling number is to be displayed or the calling number is restricted according to the calling number display mode set in the program mode. To NT (26). At this time, as the first diagram, the ISDN telephone transmits and receives data with the NT 26 through the transmitter 12. When the reception generates an interrupt when receiving data, the MPU 10 responds to the interrupt. 12) read the received data.

Meanwhile, the NT 26 receives the setup message transmitted from the transmitter 12 connected to the “S” interface in operation 72 of FIG. 4B. Upon receiving the setup message from the telephone, the NT 26 decodes the caller ID information in the setup message received in step 74 to find out whether the representation of the caller ID information is limited. If the display of the calling number information included in the setup message received in the search of step 74 is not limited, it is determined that the calling number is allowed, and the NT 26 determines whether the display of the calling number in the network is restricted in step 76. do. If the display of the calling result number in step 76 is not limited, the NT 26 adds the calling number information of the calling telephone to the setup message received in step 79, and returns to the called party (not shown) in step 82. The setup message to which the calling party number information is added is transmitted. If it is determined that the display of the calling party number information in the setup message received in steps 74 and 76 described above is limited or the display of the calling number representation in the network is restricted, the NT 26 sends a setup message received in step 80. The number information is deleted and the setup message from which the calling party number information is deleted is transmitted to the called party in step 82. Therefore, the NT 26 can be seen by analyzing the encoding information of the representation display in the caller ID information included in the setup message transmitted from the ISDN telephone of the caller to add or delete the caller ID and transmit it to the called party.

The ISDN telephone receiver of the called party receiving the setup message transmitted from the NT 26 receives the setup message transmitted from the NT 26 through the transmitter 12 and performs call related information processing. That is, the MPU 10 in the ISDN telephone on the receiving side extracts the calling number information included in the setup message sent from the NT 26 to display the calling number. For example, if a caller number is added to the setup message, the caller ID is extracted and displayed through the display unit 20. If there is no caller ID, the caller ID is not displayed or information indicating that there is no caller ID is displayed.

Therefore, even if the caller ID expression is displayed in the network, if the caller ID expression is restricted by the programming of the phone, the caller ID is not displayed on the called party, thereby protecting personal life.

As described above, the present invention has the advantage that even if the caller ID display of the network is allowed in the ISDN phone, if the caller sets the caller ID display in the phone with the restriction, the called party cannot receive the caller ID and thus the privacy can be protected. have.

Claims (4)

An ISDN network terminator and a program according to a mode selection are possible, and an ISDN telephone system having an ISDN telephone which is connected to a network terminator to transmit and receive data. A display mode setting process of setting caller ID restriction / allowing state information in response to an input of a mode selection signal inputted; analyzing the set state information in response to an input of a dial digit; When the caller ID information is set to the restriction information, and when the analyzed result is the second display mode, the caller ID setting process of setting the caller ID information as allowable information and the caller ID information set in the caller ID setting process are included. A first setup message outputting step of outputting a setup message to the network terminator, and the first setup message; And a second setup message transmitting step of transmitting a setup message in which the calling party number information is deleted to the called party in response to the caller information expression display information in the setup message outputted from the outputting step. Calling number transmission control method of. The method of claim 1, wherein the display mode setting process comprises: a mode segmentation process of analyzing caller ID restriction / allowed key response in response to a key input in a program mode state, and a program state analyzed in the analyzed mode analysis process; And a display mode setting process for setting a corresponding status number of calling origin display restriction / display allowance. The method according to claim 1 or 2, wherein the calling information setting process comprises: encoding the information of the calling number information area into the state of the corresponding display mode in response to the setting state of the display mode setting process when the dial digit is input; And transmitting the setup number message including the coded setup number information to the network. An ISDN network terminator and a program according to a mode selection are possible, and an ISDN telephone system having an ISDN telephone which is connected to the network terminator and transmits and receives data. A display mode setting process for setting a calling flag display restriction / marking status flag corresponding to a caller ID restriction / permission key when the call is entered, and the caller ID information area corresponding to the state of the program of FIG. Is encoded in the display mode and transmits a setup message including the coded caller ID information to a network side; and in response to the setup message transmitted from the caller ID information encoding process. Analyzing the display mode of the calling party number information included in the received setup message A display mode analysis process, a caller number transmission state analysis process for searching for a caller number representation display state in the network when it is determined that the display mode analyzed in the display mode analysis process is the restriction mode of the caller number, and the caller number transmission state analysis When the caller ID display state is allowed in the process, the caller adds the caller ID information to the setup message and transmits it to the called party, and when the caller ID restriction is determined in the display mode analysis and the caller ID analysis, the caller sends the setup message. Calling party setup message transmission process to delete the number and transmit to the called party, and the caller ID display process for receiving the setup message transmitted in the setup message transmission process to display the caller number recorded in the caller ID information area. How to.