KR100434468B1 - Method and system for conference feature between internet call and telephone network call in webphone system - Google Patents

Abstract

The present invention relates to a conference call between an internet call and a telephone network call in a web phone system, and supports both a telephone network call and an internet call, which can be held when there is a call on the telephone network or a VoIP line, and the Internet is held in the hold state. The line can be connected to the call using the line, so the trunk line call is connected in the Internet call state. For this purpose, the telephone network and the Internet line call are switched.

Description

METHOD AND SYSTEM FOR CONFERENCE FEATURE BETWEEN INTERNET CALL AND TELEPHONE NETWORK CALL IN WEBPHONE SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conference call in a web phone system. In particular, the present invention relates to a web phone system for enabling a conference call between subscribers called from both sides by connecting an internet call and a telephone network call through switching in the web phone system. The present invention relates to a conference call method and system between an internet call and a telephone network call.

In general, a conference call is a multi-party call in a communication system, and various methods are provided for subscriber service in a key phone or a private exchange, and a conference call with a trunk line through the Internet is disclosed in US Pat. No. 6,072,780. Doing. This is accomplished by digital control at the gateway in the telephone network. A web phone is a computer equipped with a speaker and a microphone and a communication device capable of accessing the Internet network. The web phone is connected to a host that performs a specific web phone service, and directory information, that is, information such as a sender / receiver connection for connecting a transceiver. After receiving the transmission through a number of private information providers it is possible to Internet phone to the desired recipient. However, although the caller of the public network or any side of the Internet is controlled by the computer network control through the Internet, the web phone itself does not allow the conference call to function.

Accordingly, an object of the present invention is to provide a method for enabling a conference call between an internet call and a telephone network (PSTN, ISDN) in a web phone.

The present invention for performing the above object is a first process of holding the current state when the user is a call is initiated due to incoming (call),

A second step of forming a new call path by calling another subscriber in the first step;

A third step of allowing the held call to be newly connected in an internet call mode when the held call is selected in the second process and a newly connected in a phone network call mode when the held call is selected in the Internet;

In the third process, when the user selects the conference call mode in a state in which a new communication path is formed, the fourth process performs a conference call between held call paths.

1 is a simplified diagram of a web phone system for explaining an embodiment of the present invention;

FIG. 2 is a circuit diagram illustrating the inside of the web phone system of FIG. 1 in detail.

3 is a conference call flow diagram between an internet call and a telephone network call according to an embodiment of the present invention.

4 is a flow chart when a new call is received during the conference call of FIG. 3 according to an embodiment of the present invention.

5 is a flowchart of a hold process during the conference call of FIG. 3 according to an embodiment of the present invention;

6 is a flowchart illustrating a conference call reconnection in which a call state of one call of FIG. 4 is held according to an embodiment of the present invention.

7 is a flowchart illustrating a conference call reconnection held in the idle state of FIG. 6 according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in describing the present invention through the reference numerals added to the components of each drawing, it should be noted that the same reference numerals are used even when the same reference numerals are shown on the other drawings to indicate the same components.

In addition, in the following description, many specific details such as components of specific circuits are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It will be obvious to those of ordinary skill in the field. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a simplified diagram of a web phone system for explaining an embodiment of the present invention,

CO lines and ISDN circuits 110 and 111 connected to the public telephone network, LAN circuits 112 connected to the Internet, tone / ring generators 106 and 107 for transmission and reception calls, and DTMF transmitters and receivers that provide DTMF signals ( 108, 109, ROM 103 for storing data according to web phone operation, RAM 104, the central processing unit 102 for controlling according to the conference call, and the trunk line and ISDN circuit (110, 111) And a switching unit 101 for switching a conference call between the public telephone network and the Internet network connected by the LAN circuit 112. The switching unit 101 does not have a physical component in hardware but is virtual when connected to the central processing unit 102 and the trunk line and the ISDN circuits 110 and 111 and the LAN circuit 112 to enable a conference call. It shows the function.

FIG. 2 is a circuit diagram illustrating the inside of the web phone system of FIG. 1 in detail.

Ethernet controller 201 connected to LAN circuit 112, ISDN interface serial input / output circuit 204 connected to ISDN circuit 111, and first and second PSTN interface circuits 205 and 206 connected to trunk line circuit 110. ), An audio codec 203 for coding or decoding the input / output data of the ISDN interface serial input / output circuit 204 into audio data or a signal, and the PCM data via a signal through the audio codec 203 and the Ethernet controller 201. PCM codec 202, which is coded or decoded to a handset, and outputs data to ROM 104 and RAM 103 by means of first and second PSTN interface circuits 205 and 206, ISDN interface serial input and output circuits 204 and Ethernet. A central processing unit 102 for controlling conference calls within a web phone under the control of the controller 201, a switch 208 for switching the first PSTN interface circuit 205, a microphone and a speaker, and a second PSTN interface; Circuit 206 and data It consists of a modem 207 for handling.

3 is a flowchart illustrating a conference call flow between an internet call and a telephone network call according to an embodiment of the present invention.

A first process of receiving an input of a conference call key in a call state;

A second step of checking whether there is a call held from an input of a conference call key in the first step;

A third process of adding a communication channel and forming a communication path between calls when a call held in the second process exists;

When the call path is formed in the third process, it comprises a fourth process of performing a conference call.

4 is a flow chart when a new call is received during the conference call of FIG. 3 according to an embodiment of the present invention.

A conference addition confirmation process for checking whether a conference call is added from a new call while a conference call is in progress;

A conference call connection process for connecting the incoming call to the conference, if the conference has been added during the conference addition check;

A new telephone call confirmation process of checking whether a new telephone is in a call state unless the conference is added and holding or cutting an incoming telephone call if the call is not in the call state;

In the new phone call confirmation process, if the call state of the new phone is not in the conference call termination confirmation process to hold the conference call if the end of the conference call, and if not;

A conference call termination process of terminating a call channel participating in the conference if the conference call is not terminated in the conference call termination confirmation process;

When the conference call is terminated in the process, the conference call state is released and the incoming call is connected to the first call state process of making a call state.

5 is a flowchart of a hold process during the conference call of FIG. 3 according to an embodiment of the present invention, and a hold key input process of performing a hold key input in a conference call state;

A current call holding process of holding a current call from the hold key input to an idle state.

6 is a flowchart illustrating a conference call call reconnection in which a call state of one call of FIG. 4 is held according to an embodiment of the present invention;

The process of inputting the hold key while in the first call state,

Holding the current call when checking the presence of a held call from the hold key input of the above process;

Holding a current call when there is no call held in the process and connecting or holding a call or cutting and holding a call in a call when the held call is present;

When the held call is connected in the above process, it checks whether or not there is a conference call, and if there is no conference call, the call is made into the first call state and the conference call is in the conference state.

7 is a flowchart illustrating a conference call reconnection held in the idle state of FIG. 6 according to an embodiment of the present invention.

Checking the presence or absence of the idle state, if the idle state enters the hold key and checks the presence of the held call state,

Connecting the held call when the held call exists;

When the held call is connected, if there is no conference call, the call is set to 1 and if there is a conference call, the conference call is made.

Therefore, a specific embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7.

The present invention enables conferencing between calls entered into different ports in the web phone as shown in FIG. 2, namely, ISDN and PSTN of public network or LAN of Internet network. At this time, the telephone port can be supported according to the range of hardware extension. 3 illustrates a process of entering a conference call state by a user's key input according to a key input through the user's keyboard 118 when another call held in the call state exists. In step 3a, the central processing unit 102 calls the call state, i.e., the call state between one predetermined subscriber of ISDN of the public network and one predetermined subscriber of the PSTN. Enter the mode selection key in step (3b) for conference call. At this time, the current call state is held through the first PSTN interface circuit 205 and the ISDN interface serial input / output circuit 204, and the central processing unit 102 checks whether the call state is held in step 3c. If not, if it returns to the initial state, in step 3d, the first PSTN interface circuit 205 and the ISDN interface serial I / O circuit 204 are added to add a communication channel, and the Ethernet controller 201 is controlled to control the LAN circuit 112. In the process of (3e), the conference call is formed by forming a call path for the conference call through the conference. The first PSTN interface circuit 205 and the ISDN interface serial input / output circuit 204 and the Ethernet controller 201 are connected to the LAN circuit 112 in the connection to the call for the conference call of step (3e). In the process (4a) with the Internet, if the conference call status is checked and the call is in progress, the new call is received in the process (4b). Verify that the conference call is added in step 4c from the incoming call of the new phone in step 4b. If the conference call is added, the call received in the conference call is connected in step 4f. If the conference call is not added, the process checks whether the new phone is busy in step 4d. If the call is not in progress, hold or disconnect the incoming call in step (4g). If the call is in progress, check whether the conference call ends in step (4e). If the conference call ends, the conference call is held while continuing to transmit another call in step (4h). However, if the conference call is terminated in step (4e), the call channel participating in the conference is terminated in step (4i), the conference call state is released in step (4j), and the incoming call is connected in step (4k) (4l). In the process, you enter one call. In the conference call state, the hold process checks the conference call state in step 4a as shown in FIG. 5 and inputs a hold key through the keyboard 118 in step 5b when the conference call is in progress (5c) (5c). The current call with the Internet network through the LAN circuit 112 by controlling the first PSTN interface circuit 205 and the ISDN interface serial input and output circuit 204 and controlling the Ethernet controller 201 while continuing the transfer between different calls in the process. Hold to enter idle state. In order to reconnect the conference call held in the call state of the one call, it is checked whether the call state of one call is made in step (6a) as shown in (6a) as shown in FIG. If a call is in a call state, the input of the hold key is received to check whether there is a call held in step 6c. If the held call does not exist, hold the current call in step (6f), and if the held call exists, hold or disconnect the call being called in step (6d), and connect the held call in step (6l). do. Subsequently, in step (6g), if the conference call is a conference call, the conference call is executed in step (6h). In order to reconnect the call of the conference call held in the idle state of FIG. 5, check whether the idle state is received in step 7a as shown in FIG. 7, and receive the input of the hold key in the process of idle state 7b. If the presence of the call held in step (7c) is confirmed, the first PSTN interface circuit 205 and the ISDN interface serial input / output circuit 204 are controlled in the state of being held in step (7d), and the Ethernet controller 201 Control the connection with the Internet through the LAN circuit 112, and checks whether or not the conference call in the process (7e) to execute the call in the state of one call, if not, the conference call state.

As described above, the present invention enables a multi-party conference call on the Internet with a public network in a web phone system, thereby reducing the inconvenience of having to reconnect the call to the phone network in order to make a conference call with a person using the phone network during an internet call. In addition, there is an advantage that the conference call cost can be reduced by making a conference call with a telephone network call without an internet charge.

Claims (6)

In a conference call method between an internet call and a telephone network call of a web phone system, A first process of receiving an input of a conference call key in a call state of one of an internet call or a telephone network call of the web phone system; A second step of checking whether there is a call held from an input of a conference call key in the first step; A third channel for adding a call channel for connecting a call other than the held call in the first step when a call held in the second step exists, and forming a call path between the held call and the added call channel; Process, And a fourth process of performing a conference call when the call path is formed in the third process. The method of claim 1, further comprising: checking whether or not to add a meeting from an incoming call of a new phone while in the conference call; A conference call connection process for connecting the incoming call to the conference, if the conference has been added during the conference addition check; A new telephone call confirmation process of checking whether a new telephone is in a call state unless the conference is added and holding or cutting an incoming telephone call if the call is not in the call state; In the new phone call confirmation process, if the call state of the new phone is not in the conference call termination confirmation process to hold the conference call if the end of the conference call, and if not; A conference call termination process of terminating a call channel participating in the conference if the conference call is not terminated in the conference call termination confirmation process; In the web phone system, the conference call between the Internet call and the telephone network call in the web phone system, characterized in that when the end of the conference call is terminated, the conference call state is released and the incoming call is connected to make a call state. Way. The method of claim 2, further comprising: a hold key input process of performing a hold key input in the conference call; And a current call holding process of holding a current call from the hold key input and putting the current call in an idle state. The method of claim 2, further comprising: performing a hold key input when the call is in the first call state; Holding the current call when checking the presence of a held call from the hold key input of the above process; Holding a current call when there is no call held in the process and connecting or holding a call or cutting and holding a call in a call when the held call is present; In the above process, when the held call is connected, the system checks whether there is a conference call, and if there is no conference call, adds a process of making a call state and, if the conference call is a conference state, in the web phone system. Method of conference call between calls. The method of claim 3, further comprising: checking a presence of the idle state and, if an idle state, inputs a hold key and confirms the presence of a held call state; Connecting the held call when the held call exists; In the web phone system, the conference call method between the Internet call and the telephone network call, characterized in that when the held call is connected to the conference call if there is no conference call state 1 and if there is a conference call. A web phone system for implementing a conference call between an internet network call and a telephone network call, PSTN interface unit for the telephone network call of the web phone system, A network interface unit for internet network call of the web phone system; A switching unit which performs a switching operation between telephone networks so as to enable a conference call between a telephone network connected by the PSTN interface unit and an internet network connected by a network interface unit; Detects an input of a conference call key during a call with the telephone network or the Internet network, holds a corresponding call, connects a new call path in the held state, and switches between the held call and the new call path; A web phone system comprising a central processing unit to control a switching unit to perform a conference call.