KR100394456B1 - A method of providing a calling party's category information - Google Patents

Abstract

The present invention relates to a call type information providing method for providing specific indication information to a terminal of a called subscriber for a call type having a large number of errors in the call number display. If the call type for a incoming call is checked, Requesting a routing number of an exchange managing the called subscriber after omitting the calling number; A second step of performing call set-up while transmitting a calling number of the specific call to an exchange managing the called subscriber when receiving a routing number from an exchange managing the called subscriber through a home location register; And a third process of transmitting an indication message corresponding to the origination type of the specific call to a terminal of the called subscriber when the call setup is made, thereby preventing confusion of subscribers caused by an error in the calling number. By providing the corresponding function in the system without changing the subscriber's terminal, it provides the subscriber with high quality service.

Description

A method of providing a calling party's category information}

The present invention relates to a method of providing call type information, and more particularly, to a method of providing information indicating a call type (for example, an international call, a local phone, or a public phone) to a terminal of a called subscriber.

Mobile communication can be viewed as a form of adding mobility to an existing communication service. A type of mobility includes terminal mobility in which a terminal can be freely moved by being released from a subscriber line, and a user moves to an arbitrary terminal. There are user mobility that can communicate, and service mobility that can accommodate not only voice but also data and video by widening a wireless channel by increasing a use frequency band.

With the development of technology, as the mobile terminal becomes smaller and lighter, it is rapidly spreading to portable mobile terminals (eg, cellular phones, PCS phones, PDAs, etc.).

The mobile communication network provides various services to such a mobile terminal. For example, if a mailbox subscriber cannot receive a call on his or her mobile device, a voice mail that the caller leaves a message in the mailbox subscriber's voice mailbox or fax mailbox and allows the mailbox subscriber to view the message. Voice Mail Service (also known as voice mail service) connects voice recognition equipment to mobile phone system to memorize / register subscriber's voice so that subscriber can make a voice call without dialing a phone number when making mobile phone call. Voice Activated Dialing Service, which can receive numeric and text messages (about 40 to 50 characters in English, about 80 characters in English) or various life information as texts through the screen of the mobile terminal, and SMS subscribers If you use the message, you will be notified to the mobile terminal immediately upon arrival. Gives provide such a short message service (Short Message Service) to the same terminal to the call service is used.

Recently, as the calling number display service is provided, the telephone number of the calling subscriber is displayed on the mobile terminal of the called subscriber at the time of telephone connection.

By the way, when calling from an international call, a branch exchange (PABX), or a public telephone, the calling number is not displayed correctly, and a callback occurs when the call is back. As a result, subscribers not only feel uncomfortable, but also the trust in the caller ID service is lowered.

The present invention has been proposed in view of the above-described conventional situation, and an object thereof is to provide a method of providing call type information for providing a specific display information to a terminal of a called subscriber for a call type having a large number of errors in the call number display. .

Another object of the present invention is to provide a call type information providing method for providing a quality service to a subscriber by improving a function of a call number error phenomenon of a call number display service.

1 is a network configuration to which the present invention is applied,

Figure 2 is a table of the origination classification in which the present invention is employed,

3 is a flowchart illustrating a method of providing call type information according to an embodiment of the present invention.

※ Explanation of code for main part of drawing

10: 3rd party exchanger 12, 14, 16: exchanger of own network

18: Home position register of our network

In order to achieve the above objects, the method for providing caller ID information according to the preferred embodiment of the present invention is to check the caller ID for the incoming call, and if the caller is the caller of the particular call, omits the caller ID and manages the called subscriber. Requesting a routing number of the exchange; A second step of performing call set-up while transmitting a calling number of the specific call to an exchange managing the called subscriber when receiving a routing number from an exchange managing the called subscriber through a home location register; And a third process of transmitting, to the terminal of the called subscriber, an indication message corresponding to the origination type of the specific call when the call setup is made.

Hereinafter, a method of providing call type information according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a diagram illustrating a network to which the present invention is applied, and a third-party exchanger 10 (including a wireline operator and a wireless operator) and an exchanger 12 (mobile telephone exchanger) of the company network are connected to E1 and a signaling method is ISUP ( ISDN User Part; a kind of No.7 message). In the exchange 12, E1 between the exchanges 14 and 16 is managed in a bundle unit. The E1 bundle is called a route (RTE) and is a logical concept.

The incoming route to the exchange 12 is called the incoming route, and the route from the exchange 12 to the third party exchange 10 is called the outgoing route.

If the subscriber in the other network is called (eg, KT call, international call, 016, 019, 018 call, etc.) and reaches the subscriber in the own network, it must pass through the exchange 12. Accordingly, the exchange 12 manages route (RTE) for each operator. In general, the incoming route is used separately from the general call and international calls.

A home location register 18 is provided in the company network, and the home location register 18 is a mobile terminal user required to connect an incoming call to a mobile terminal (not shown) or to provide other mobile communication services. All permanent information (eg, terminal information (NIM, ESN), subscriber information, additional service information, etc.) is stored. The home position register 18 is connected to each of the switches 12, 14, and 16 utilizing the No. 7 function.

The exchange 12 transmits to the home location register 18 omitting the calling number upon request of the routing number of the destination exchange 14 or 16 for all calls coming into the incoming call path related to the international telephone call, When the call is set up with ISUP after receiving the routing number, the call type in IAM (a message sent from the calling station to the called station when the call is set up in the ISUP message, includes the calling number, called number, calling type, etc.) (International Call (H'FD)) "to send to the player (i.e. 14 or 16). The exchange that receives the call setup message (also referred to as a called exchange) (i.e., 14 or 16) does not display the calling number when sending a ring signal to the called subscriber if the calling type in the IAM is H'FD. Send the message "International Call" on the display. For the function of the exchange 12, a separate flag may be set for each path (RTE) to turn the function on / off using a command. When off, it is treated the same as a normal call.

On the other hand, in the exchange 12 (or a relay exchange or a power exchange) that receives a call setup message from the wire operator, the caller ID is deleted if the call type in the IAM is PABX (H'FC) or Payphone (H'0F). The home location register 18 is transmitted to the home location register 18, and when the transmission to the power station (ie, the destination exchange 14 or 16) is transmitted, the corresponding transmission type is included. If H'FD is added to the calling type when the international call is made in consultation with the cable operator, the same is true for the international call (H'FD). When receiving the call setup message, the power exchange (or destination exchange) 14 or 16 does not display the calling number when sending a ring signal to the called subscriber if the call type in the IAM is H'FC or H'0F. Send a message set to "PABX Call" or "Public Call" on the display.

The calling type employed in the present invention is defined in Q.763 related to ISUP, and a table showing the calling type defined in the standard is shown in FIG. In FIG. 2, the part labeled (new) is a part that can be defined and used by a general operator, and there is no H'FD and H'FC in the calling type defined in the existing standard. In the present invention, the part (new) is newly defined so that the call type information can be provided in the present invention.

3 is a flowchart illustrating a method of providing call type information according to an embodiment of the present invention.

When the incoming call from the third party exchange 10 is inputted into the exchange 12 of the own network, the exchange 12 checks the origination type (a kind of parameter) in the IAM message of the incoming call.

As a result of the check, when the call type is H'0F (public telephone call), H'FC (local telephone call), or H'FD (international telephone call), the switch 12 returns to the home location register 18. Request the routing number of the exchange where the called party is located. At this time, the switch 12 omits the calling number. However, when the calling type is H'FD, the third-party exchange 10 includes the calling type in the IAM in advance.

The home location register 18, which has received a routing number request for an exchange for the called party, goes from the switch 12 to the called party's exchange (e.g., set to 16) so that incoming calls can be made to the called party. A routing request (TLDN) for requesting a temporary local directory number (TLDN) assignment is transmitted to the called exchange 16.

Accordingly, the called side exchange 16 assigns a routing number (TLDN) to the home location register 18, and the home location register 18 sends the received routing number to the switch 12. To send.

The exchange 12 then sets up an outgoing call to the called side exchange 16 based on the received routing number, thereby establishing a call between the exchange 12 and the called side exchange 16. When the exchange 12 transmits a call setup message to the called exchange 16, an H'FD (international telephone call) or an H'FC (local telephone call) or a public telephone call (H) for the calling type in the IAM. Include '0F). If the transmission type is not included in the third party in relation to the international call, the exchange 12 recognizes that the call is an international call through a separate route management function and thus provides an H'FD (international call) for the call type. It transfers it to the called side exchange 16.

In this way, when a call is established between the exchange 12 and the destination exchange 16, the destination exchange 16 receives the message " Public Call " if the content corresponding to the received call type is H'0F (public telephone call). "" Is the message used when attempting an incoming call to an incoming subscriber as an IS-95 message. Ringing and forwarding the calling number. IS-95 is a protocol between the base station and the terminal. If the content corresponding to the received call type is H'FC (Hanger Call), the called party exchanger 16 includes the message "PABX Call" in the display of Alert with Information. If the content corresponding to the received calling type is H'FD (international call), the called party exchanger 16 includes an "International Call" in the display of Alert with Information.It is delivered to a mobile terminal of the particles.

As described in detail above, according to the present invention, when making an international call, the terminal receives an "International Call", an "PABX Call" when calling from a local exchange, and a "Public Call" when calling from a public telephone. By providing to the display, it is possible to prevent the confusion of the subscribers caused by the error of the calling number, and to provide a good service to the subscriber by supporting the corresponding function in the system without changing the terminal of the subscriber.

On the other hand, the present invention is not limited only to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, the technical idea to which such modifications and variations are also applied to the claims Must see

Claims (2)

Checking a call type for an incoming call and, if the call type is for a specific call, omitting the call number and requesting a routing number of an exchange managing the called subscriber; A second step of performing call set-up while transmitting a calling number of the specific call to an exchange managing the called subscriber when receiving a routing number from an exchange managing the called subscriber through a home location register; And And a third process of transmitting, to the terminal of the called subscriber, an indication message corresponding to the origination type of the specific call when the call setup is made. The method of claim 1, The specific call is an international call, an internal call, a call type information providing method, characterized in that the public telephone call.