KR20050076855A - Method for providing call connection information in mobile communication system - Google Patents

Abstract

The present invention relates to a method for guiding call connection information in a state incapable of communication in a mobile communication system, the process of forming a call path when a call is received, and a phone number of a mobile communication terminal through the call path. And receiving a password, and determining whether the subscriber is allowed to access based on the received information, and, if the subscriber is allowed to access, call connection information on a call connected to the subscriber number in a disabled state. And transmitting the voice through the communication path. The present invention has the advantage that it can be confirmed through a wired network whether a person attempts to access a call to his or her telephone number even when the user is in a dead zone or the power is off.

Description

How to provide call connection information in mobile communication system {METHOD FOR PROVIDING CALL CONNECTION INFORMATION IN MOBILE COMMUNICATION SYSTEM}

The present invention relates to a method for providing call connection information in a mobile communication system, and in particular, to provide a method for guiding call connection information through an automatic response system (ARS).

Mobile communication terminals are rapidly spreading due to the convenience of portability, and thus service providers (terminal manufacturers) are competitively developing more special functions or services to secure a large number of users. For example, service providers provide a variety of services such as caller ID, spam SMS blocking, automatic connection, call forwarding, caller ID, call waiting, and so on.

The caller ID display service is a service that can check the phone number of the caller, and is a useful service that can check the incoming call in particular. However, the caller ID display service is possible only when the terminal is turned on and the terminal is located in a callable area, and there is a problem in that the caller ID service cannot be provided when the call is unavailable or the terminal is turned off. . In other words, in this situation, the call connection information of another person cannot be known. If the user is waiting for an important call, the user may miss the important call and see a big failure because there is no way to know the call connection information.

In this respect, there is a demand for a method for checking a call received from a state incapable of calling. In the prior art, there is a service that informs call connection information (connection time and caller information) in a short message when the terminal enters the available state from the unavailable state. However, this is only possible when the terminal enters the available state and cannot be used if the terminal stays in the incapable state. In general, even if the mobile communication terminal is in a call-disabled state, since a wired call is often possible, it can be a very useful service if the call connection information of another person can be known through a wired network.

Accordingly, an object of the present invention is to provide a method for guiding call connection information through an ARS.

Another object of the present invention is to provide a method for guiding call access information to a subscriber accessing a specific number in a mobile communication system and performing an automatic access to a corresponding caller number according to a subscriber request.

It is still another object of the present invention to provide a method for separately managing call connection information in a disabled state in a mobile communication system for each subscriber.

 According to a preferred embodiment of the present invention for achieving the above object, in a method for guiding call connection information in a state of no communication in a mobile communication system, a process of forming a call path when receiving a call, Receiving a phone number and password of a mobile communication terminal through the call path, and determining whether the access is a subscriber is allowed based on the received information, and if the subscriber is allowed to access, the subscriber in the state of unavailable Transmitting the call connection information about the call connected by the number through the communication path by voice, transmitting the call message after the call connection information is sent, and requesting an automatic connection to the caller; After transmitting the guide message, and checking whether the DTMF (Dual Tone Multi frequency) signal is received, and when receiving the DTMF signal, by analyzing the received DTMF signal Determining the service requested by the subscriber, and when the subscriber requests the call, perform the automatic access to the calling party number corresponding to the call connection information and between the subscriber and the caller in the caller response. It characterized in that it comprises a process of forming a currency path.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, the present invention provides a method for informing a call access information to a subscriber connected to a specific number in a mobile communication system through an automatic response system (ARS) and performing an automatic access to a corresponding caller number according to a subscriber request. Will be explained.

1 illustrates a network configuration of a schematic mobile communication system according to the present invention. This is a general mobile communication network structure, and only the names of the components are changed, but they are also common to IS-95A / B, GSM, CDMA2000, WCDMA, and UMTS.

Referring to FIG. 1, a mobile station (MS) 8 represents a mobile communication terminal carried by a user. The mobile station 8 may be a legacy voice terminal that does not support IP or a terminal that supports IP. A base transceiver system (BTS) 6 manages radio resources, and is a device that substantially exchanges information with a mobile communication terminal through a radio link. A base station controller (BSC) 5 is a device for controlling base stations (BTSs), and supports signal protocols such as call setup and release.

MSC (Mobile Switching Center) / Gateway (GW: Gateway) (3) is a device that connects the mobile communication network and the Internet (Internet), PSTN (Public Switched Telephone Network) and PSDN (Public Switched Data Network). Protocol conversion is supported. The gateway GW may be called a logical name such as a packet data service node (PDSN), an access gateway (AGW) or a media gateway (MGW). The visit location register (VLR) 4 temporarily stores the location and subscriber information of the mobile communication terminal located in the communication area of the mobile switch 3. The Home Location Register (HLR) 1 stores and manages subscriber information, additional service information for each subscriber, and location information of a mobile communication terminal.

On the other hand, Short Message Service Center (SMSC) (71) that provides short message service, Billing Data System (BDS: 72) to collect and store the billing data, provides voice guidance service A number of additional services that provide a variety of additional services, such as a Remote Feature Control (RFC) server (7z) that provides remote control services such as an Automatic Response System (ARS) 73 and a call forwarding service. It comprises a service node (71-7z).

Next, the operation of the present invention will be briefly described with reference to the configuration of FIG. 1.

First, it is assumed that the terminal 8p tries to talk to the terminal 81 and the terminal 81 is in a shaded area. When the call of the terminal 8p reaches the mobile switching center 31, the mobile switching station 31 accesses the home location register 1 to display the information of the terminal 81 (power on / off, Location, etc.) and then attempts to connect to the terminal 81. At this time, if the terminal 81 fails to connect the call in the shaded area, the terminal 81 stores the corresponding call connection information (access time and caller information, etc.) in the system (for example, an automatic answering system or an HLR).

On the other hand, the user of the terminal 81 is connected to the automatic answering system 73 by wireless or wired to confirm the call received in the shaded area. Here, the user of the terminal 81 is connected to the automatic answering system 73 using a predetermined telephone number. After accessing the automatic answering system 73, the user enters the telephone number of the terminal 81, and enters a pre-registered password (Lock Code). If the connection is permitted by the above process, the automatic answering system 73 guides the call connection information in the unavailable state. For example, "Attempt to connect from 123-456-7890 was attempted at 3:40 on April 28, 2003". After guiding the call connection information, the automatic answering system 73 sends an automatic connection guide message (for example, "Press 3 to delete the first information if you want to call right away"). If the subscriber selects No. 1, the subscriber is automatically connected to the caller number (123-456-7890).

2 illustrates a procedure for guiding call connection information through an automatic guide system in a mobile communication system according to an exemplary embodiment of the present invention. The algorithm described below may be performed in a mobile switching center or an additional service providing equipment among the unit systems constituting the mobile communication system. For example, the supplementary service providing equipment may be an automatic response system (ARS) 73 that provides a voice guidance service. In the embodiment of the present invention, it will be assumed that the automatic response system 73 is performed.

Referring to FIG. 2, first, the automatic answering system 73 checks whether there is a call coming through a wireless network or a wired network in step 201. When the call connection is detected, the automatic answering system 73 establishes a call path in step 203 and transmits a voice message requesting a phone number input of the mobile communication terminal through the call path in step 205.

After sending the voice message, the automatic answering system 73 checks whether the telephone number of the terminal is received through the call path in step 207. When the telephone number of the terminal is received, the automatic answering system 73 translates the number in step 209 and accesses the home location register 1 to check whether it is a valid subscriber. If the subscriber is not a valid subscriber, the automatic response system 73 proceeds to step 243 and sends an error message (eg, "Not a valid subscriber").

If the subscriber is a valid subscriber, the automatic answering system 73 sends a voice message requesting a password input through the call path in step 211. The password is a number registered in advance in the system by the subscriber. After transmitting the voice message, the automatic answering system 73 checks whether the password is received through the call path in step 213. Upon reception of the password, the automatic answering system 73 compares the received password with a pre-registered password in step 215 to determine whether the subscriber is allowed to access. If the two passwords are different, the automatic response system 73 proceeds to step 245 and sends an error message (eg, "Incorrect password").

If the two passwords match, the automatic answering system 73 proceeds to step 217 to read the call connection information from the memory in the shaded area or the state where the mobile communication terminal is turned off, and the call connection information. Send a voice message to guide through the call. For example, "Attempt to make a call from 123-456-7890 at 3:40 on April 28, 2003" is shown. After guiding the call connection information, the automatic answering system 73 transmits an automatic connection guide message (eg, “1 for direct calls, 2 for deleting information, and 3 for listening to the next information” in step 219). Please press ").

After sending the guide message, the automatic answering system 73 checks whether a dual tone multi frequency (DTMF) signal is received through the call path (221). When the DTMF signal is received, the automatic response system 73 analyzes the DTMF signal received in step 223 to obtain button information pressed by the subscriber.

In step 225, the auto answering system 73 determines whether the subscriber selects "call" based on the button information. If the "call" is selected, the automatic answering system 73 automatically connects to the caller number 123-456-7890 in step 227. In step 229, the automatic answering system 73 checks whether there is a response from the sender. If a response is received from the caller, the automatic answering system 73 proceeds to step 231 to form a call path between the subscriber and the caller. Steps 227 to 231 described above may be performed by the mobile switching center 3 at the request of the automatic response system 73. If the answer is not received from the caller, the automatic answering system 73 proceeds to step 233 and sends out a prompt message (eg, "Don't answer the call") and ends the program.

On the other hand, if the "call" is not selected, the automatic answering system 73 proceeds to step 235 to determine whether the subscriber selected "delete". If the "delete" is selected, the automatic answering system 73 proceeds to step 237 and deletes the call connection information sent through the previous call path from the memory and ends the program.

On the other hand, if the "delete" is not selected, the automatic response system 73 proceeds to step 239 to determine whether the subscriber selected "next information". If the " next information " is selected, the automatic answering system 73 proceeds to step 241 to send the next call connection information and returns to step 219 to perform the following steps again.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention can be expected to create a new additional service. In addition, there is an advantage that can be confirmed through a wired network, even if the call is in the area or the power is off (off), who attempted to access the call to their phone number. In addition, it is very useful from the user's point of view because it is possible to automatically access the caller's phone number immediately after checking the call access information.

1 is a diagram illustrating a network configuration of a schematic mobile communication system according to the present invention.

2 is a diagram illustrating a procedure for guiding call connection information through an automatic guide system in a mobile communication system according to an exemplary embodiment of the present invention.

Claims (4)

A method for guiding call connection information in a state of no communication in a mobile communication system, When receiving a call, forming a call path, Receiving a phone number and a password of a mobile communication terminal through the communication path, and determining whether the subscriber is allowed access based on the received information; And in the case where the subscriber is allowed to access, transmitting voice call information on a call connected to the subscriber number in a voice disabled state through the call path. The method of claim 1, Transmitting the guide message requesting automatic connection to the caller after transmitting the call connection information; Checking whether a DTMF (Dual Tone Multi frequency) signal is received after transmitting the guide message; When receiving the DTMF signal, analyzing the received DTMF signal to determine a service requested by the subscriber; If the subscriber requests "call", further comprising the step of automatically accessing the calling party number corresponding to the call connection information and forming a call path between the subscriber and the calling party in response to the calling party. How to. The method of claim 2, And when the subscriber requests "delete", deleting the transmitted call connection information from a memory. The method of claim 1, And the call connection information includes a connection time and a caller's telephone number.