KR20040063197A - VoIP telephony service method in the type of receiver payment without sender registration - Google Patents

Abstract

PURPOSE: A non-subscription destination-charging type VoIP phone service method is provided to allow a caller to use a local/overseas call by a PC-to-phone method without a beforehand subscription procedure. CONSTITUTION: A caller requests a call setup from a phone terminal of a desired callee by using his/her PC terminal(110)(S210). A gatekeeper(130) transfers a call setup signal to an available VoIP gateway(140)(S212). The VoIP gateway(140) converts the call setup signal into a signal suitable for transmission in a public telephone network, and transmits the converted signal to a CTI(Computer Telephony Integration) server(160) through the public telephone network(S214,S216). The CTI server(160) requests a call setup from a phone terminal(170) of the callee, and connects the PC terminal(110) of the caller to the phone terminal(170) of the callee for a short while, and then, stops the connection therebetween after pre-set time elapses(S218,S220). The CTI server(160) inquires the callee whether he/she would accept the call connection according to a destination side charging(S222). If the callee accepts the connection according to the destination side charging, the CTI server(160) resumes the call connection between the PC terminal(110) and the phone terminal(170)(S224,S226).

Description

Voice telephony service method in the type of receiver payment without sender registration}

The present invention relates to a VoIP telephone service method, and in particular, a caller who makes a call to a called party using a PC terminal connected to an IP network without a pre-subscription procedure, and a telephone fee charged to the called party is a non-subscribed form. The present invention relates to an incoming call type VoIP telephone service method.

Currently, with the development of computer technology, the use of the Internet due to the emergence of a powerful application called the World Wild Web (WWW) is increasing the use of low-cost Internet telephony (VoIP telephony) services. The Internet telephony service enables a voice call by converting an analog voice signal into a packet voice signal in order to use a communication infrastructure called the Internet (IP network) instead of the conventional public telephone network.

However, the protocols of public telephone networks and Internet networks are different. That is, the voice call using the public telephone network has excellent real-time response characteristics because both connected terminals are assigned a portion of the exchange for communication and occupy until the end of communication. However, since voice calls using the Internet network independently route selection by packet so that the packets can be delivered to the destination through multiple transmission networks, the packet sent first may arrive to the called party later than the packet sent later. It may be ignored or discarded during delivery. Sending signals from connection-oriented public telephone networks that need to guarantee reliability on the connectionless Internet requires a set of protocols and devices. For this purpose, the H.323 protocol of the International Telecommunication Union (ITU) is recommended. have.

The H.323 protocol is a protocol for providing real-time multimedia communication in a data network. It was originally proposed for a video conferencing standard protocol, but is now a standard protocol of Voice Over Internet Protocol (VoIP). The H.323 protocol defines four system components: terminals, gateways, gatekeepers, and multipoint control units (MCUs). VoIP refers to a technology that supports simultaneous transmission of data and voice over IP, the standard protocol in the network.

On the other hand, the caller using the VoIP telephone service must go through a separate preliminary procedure before using the service. That is, the subscription procedure for using the VoIP telephone service and the payment method for the fee charged according to the service should be selected. However, such a cumbersome procedure is to prevent more people to use the VoIP phone service.

Accordingly, the present invention has been made in order to solve the above problems, the caller charged by the caller to the telephone terminal of the called party using the fish terminal connected to the IP network without prior subscription procedure is processed in the form of billing charges The purpose of the present invention is to provide a non-subscribed incoming call type VoIP telephone service method.

In order to achieve the above object, according to the present invention, a caller uses a fish terminal connected to a public IP network and a receiver uses a phone terminal connected to a public telephone network. Requesting call setup from the called party's telephone terminal using the fish terminal of the mobile terminal, the gatekeeper connected to the public IP network transmitting a call setup signal to a corresponding VoIP gateway; The VoIP gateway converts the transferred call setup signal into a form that can be transmitted in a public telephone network and transmits it to a CTI server through a public telephone network; Requesting a call setup from the called party's telephone terminal according to the transmitted signal, and connecting the caller's fish terminal to the called party's telephone terminal; Stopping, by the CTI server, the connection between the fish terminal and the telephone terminal after a preset time elapses; Querying, by the CTI server, whether or not the called party is authorized to access by incoming call through the telephone terminal; And reconnecting the fish terminal and the telephone terminal when the called party approves the connection based on the incoming charge.

In this case, the CTI server preferably provides preset melody or video information to the caller's fish terminal when inquiring whether the called party's telephone terminal is approved.

1 is a schematic diagram for implementing a non-subscribed incoming call type VoIP telephone service according to the present invention;

2 is a flowchart illustrating a non-subscribed incoming call type VoIP telephone service method according to the present invention.

* Explanation of symbols for main parts of the drawings

110: PC terminal

120: public IP network

130: gatekeeper

140: VoIP gateway

150: public telephone network

160: CTI Server

170: phone terminal

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

1 is a schematic diagram for implementing a non-subscribed incoming call type VoIP telephone service according to the present invention, including a PC terminal 110, a public IP network 120, a gatekeeper 130, and a VoIP gateway 140. , A public telephone network 150, a computer telephony integration (CTI) server 160, and a telephone terminal 170. The main standard of VoIP telephone service through this configuration is based on H.323 defined by ITU-T SG15. The H.323 standard can be divided into call control function and voice transmission function.

The PC terminal 110 is connected to the gatekeeper 130 and the VoIP gateway 140 through the public IP network 120, it is assumed that includes a transmission and reception means capable of voice calls. The telephone terminal 170 is a commonly used telephone and is connected to the CTI server 160 through the public telephone network 150. On the other hand, in the present invention, the PC-to-phone method in which the caller makes a call to the called party's telephone terminal 170 using the PC terminal 110 is applied.

Now, the main components will be discussed. The gatekeeper 130 manages the PC terminal 110 or the VoIP gateway 140 through the H.323 standard protocol, and performs call load balancing and fault tolerance of the VoIP gateway 140.

The VoIP gateway 140 connects the public IP network 120 and the public telephone network 150 of different types to enable VoIP phone service according to the present invention. Other H.323 devices are provided through the H.323 protocol. It is linked with. Specifically, the signal input from the gatekeeper 130 through the public IP network 120 is converted into a form capable of transmission in the public telephone network 150. Therefore, the call setup signal input from the gatekeeper 130 is converted into a suitable form and transmitted to the CTI server 160. On the contrary, the signal input through the public telephone network 150 is converted into a form that can be transmitted by the public IP network 120.

The CTI server 160 combines CTI technology, digital voice processing technology, voice resource sharing technology, and digital switching technology, which is an interworking technology between an exchange and a computer, to provide an environment for an unsubscribed incoming call type VoIP telephone service. That is, the call establishment signal transmitted from the VoIP gateway 140 is transmitted to the telephone terminal 170 to perform an access function through the call connection. In addition, according to the present invention, the telephone terminal 170 requests the user to accept the call by the incoming charge, and charges the telephone fee generated by the call connection according to the acceptance. And, while storing the melody or video information in a separate database and provides the stored information to the PC terminal 110, if necessary.

2 is a flowchart illustrating a non-subscribed incoming call type VoIP telephone service method according to the present invention. The caller requests the call setup to the telephone number of the called party using the telephone terminal 170 connected to the public telephone network 150 using the PC terminal 110 connected to the public IP network 120 without any separate subscription procedure. The present invention relates to a method for providing a VoIP telephone service by connecting a call when there is an agreement with a called party.

Referring to the drawings, the caller requests a call setup to the telephone terminal 170 of the called party to call using his PC terminal (110) (S210). Then, the gatekeeper 130 connected to the public IP network 120 transmits a call setup signal to the VoIP gateway 140 available in consideration of load balancing and fault tolerance (S212). Subsequently, the VoIP gateway 140 converts the transferred call setup signal into a form capable of transmission in the public telephone network 150, and then transmits the converted signal to the CTI server 160 through the public telephone network 150 ( S214, S216).

The CTI server 160 requests the caller's telephone terminal 170 to establish a call according to the transmitted signal, and connects the caller's PC terminal 110 and the called party's telephone terminal 170 through the call connection for a while. When the predetermined time elapses, the connection between the PC terminal 110 and the telephone terminal 170 is stopped (S218 and S220). The reason for the temporary connection is to allow the caller and the called party to identify each other.

Subsequently, the CTI server 160 inquires whether the callee is authorized to access the account by the incoming charge (S222). That is, the caller is asked whether he / she will pay the telephone charges charged during the call. If the called party approves the connection by the incoming charge, the CTI server 160 resumes the call connection between the PC terminal 110 and the telephone terminal 170 and reconnects (S224 and S226). Thereafter, telephone charges incurred during the connected time are charged to the called party and charged.

In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art without departing from the technical spirit of the present invention. Therefore, the present invention can be variously used or applied in the field of incoming call type VoIP telephone service.

As described above, the non-subscribed incoming call type VoIP telephone service method can provide a convenient VoIP telephone service by allowing callers to use domestic and overseas telephones in a fish-to-phone method without a separate pre-subscription procedure.

Claims (2)

In the method for providing a telephone-to-phone service using a PC terminal connected to a public IP network and a receiver using a telephone terminal connected to a public telephone network, When the caller requests a call setup to the called party's telephone terminal by using his own PC, the gatekeeper connected to the public IP network transmits a call setup signal to a corresponding VoIP gateway; The VoIP gateway converts the transferred call setup signal into a form that can be transmitted in a public telephone network and transmits it to a CTI server through a public telephone network; Requesting a call setup from the called party's telephone terminal according to the transmitted signal, and connecting the caller's fish terminal to the called party's telephone terminal; Stopping, by the CTI server, the connection between the fish terminal and the telephone terminal after a preset time elapses; Querying, by the CTI server, whether or not the called party is authorized to access by incoming call through the telephone terminal; And And the CTI server comprises reconnecting the fish terminal to the telephone terminal when the called party approves the connection based on the incoming charging. The method of claim 1, And the CTI server provides preset melody or video information to the caller's fish terminal when inquiring of the recipient's telephone terminal for approval.