KR100549438B1 - VoIP Emergency conference call system and controlling method thereof - Google Patents

Abstract

In the present invention, an emergency command simultaneous call system and a control method thereof are disclosed. The emergency command simultaneous call system according to the present invention includes one or more host phones, an operation panel having the host phone and an interface with a user, and an emergency command simultaneous call system connected to a plurality of subscriber phones connected through an exchange. A bridge unit for calling a target phone call from a host phone and a subscriber phone, a conference unit for activating a group call when performing a group call and connecting the group call target phone to make a group call, the group call Waiting unit to be connected when the group call target phone answers the call until the room is activated, call holding unit to which the group call target phone is connected when the call is held, and control the bridge unit to perform the group call function to the group call target phone Call and activate the group call room in the conference unit. W by connecting the group call destination host a telephone subscriber answers the call and the call in the group call the room and a control unit for controlling so that the group call is performed. By the emergency command simultaneous call system according to the present invention, a group call can be made smoothly by a simple system configuration regardless of the type of the terminal.

VoIP, Conference Call, Hotline, Group Call

Description

VIP emergency conference call system and controlling method

1 is a block diagram schematically showing the configuration of an emergency command simultaneous call system according to the present invention;

2 is a block diagram showing an embodiment of a communication system in which an emergency command simultaneous call system according to the present invention is connected to an IP PBX through a LAN / WAN transmission facility;

3 is a block diagram showing an embodiment of a communication system in which an emergency command simultaneous call system according to the present invention is connected to a PBX providing a VoIP interface;

4 is a block diagram showing an embodiment of a communication system in which an emergency command simultaneous call system according to the present invention is constructed by integrating various terminals connected to various exchanges of this type;

5 is a flowchart illustrating a method of controlling a group call to be performed by an emergency command simultaneous call system according to the present invention;

6 is a flowchart illustrating a method of controlling a hotline call to be performed by the emergency command simultaneous call system according to the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a voice over IP (VoIP) emergency command simultaneous call system, particularly for emergency command group calls and a plurality of host phones regardless of the type of terminals such as IP phones, analog phones, digital phones, or radios. The present invention relates to an emergency command simultaneous call system that enables hotline calls and emergency command broadcasts, and a control method thereof.

The emergency command simultaneous call system refers to a system that allows multiple subscriber phones to be simultaneously called to enable conference or broadcast. Such emergency command systems are widely used in public offices such as fire stations and subways.

Conventional emergency command systems are constructed with hardware in which the subscriber line is physically dependent on the switch. Such a hardware-built system requires a different specification according to each exchange type in order to support various communication systems such as IP PBX, PBX, and PSTN. Therefore, it is difficult to integrate and support multiple communication systems. In addition, there is a problem that the expansion is limited according to the physically determined channel number, there is a limit to the number of concurrent users, and the sound quality deteriorates rapidly during the simultaneous call. In addition, there is a problem in that a call between a host phone and a subscriber phone is possible during a hotline call while direct call between subscribers is impossible.

In order to solve the above problems, an object of the present invention is to construct an emergency command system based on VoIP so that there is no degradation in sound quality, there is almost no restriction on the number of users during simultaneous calls, and the function can be easily expanded. The present invention provides an emergency command simultaneous call system and a control method capable of performing emergency command group simultaneous calls and hotline calls regardless of the type of a terminal that is an emergency command call.

In order to achieve the above object, the present invention, one or more host telephones, an operation panel provided with the host telephone and interfacing with the user, and an emergency command simultaneous call system connected to a plurality of subscriber telephones connected through an exchange. A bridge unit for controlling a call targeted for a group call between a host phone and a subscriber phone, a conference unit for activating a group call when a group call is performed and connecting the group call target phone to make a group call, and the group call target phone. A weighting unit connected until the group call room is activated and connected to the conference unit, a call holding unit connected to the conference unit when the group call target phone is on hold, and the bridge unit when performing a group call function; Controlling Group Calls And activate a group call room in the conference unit to connect the subscriber phone in response to the group call target host phone and the bridge part to the group call room and conference the packets input from the host phone and the subscriber phone. And a control unit for processing the group call.

According to one embodiment of the invention it is preferred that the exchange is an IP PBX and the subscriber phone and / or host phone is an IP phone.

According to another embodiment of the present invention, the switch is an analog and / or digital switch, characterized in that VoIP interfacing is possible.

In addition, the subscriber telephone may be provided with a broadcast amplifier unit to output an emergency command broadcast.

And, the subscriber telephone comprises a radio, the emergency command simultaneous call system preferably further comprises an adapter for converting the output signal of the radio from the base to analog.

On the other hand, in order to achieve the other object of the present invention, the present invention controls the bridge unit to call the set group call target phone when a group call command is input by the user, connecting the group call command host phone to the weighting unit; Activating a group call room in a conference unit when the call is answered by the group call destination phone receiving the call, connecting the host call to the group call room, and connecting the answered call to a different group call room. And disconnecting all the connected phones when the host phone disconnects the group call.

In addition, according to the present invention, when a hotline call request signal is input from the subscriber phone, connecting the requesting subscriber phone to the weighting unit, controlling the bridge unit to call the host group phone corresponding to the requesting subscriber phone, the host group phone Controlling the bridge unit to stop the call when answering one of the host phones, activating a group call room in a conference unit, connecting the host call to the group call room, and requesting a hotline call. An emergency command simultaneous call system control method is provided, comprising: connecting a subscriber phone to the group call room, and disconnecting the subscriber phone from the group call room when the host phone is disconnected from the group call room.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the elements of each drawing, it should be noted that the same elements are denoted by the same reference numerals as much as possible even if they are displayed on different drawings.

While the invention may be embodied in many different forms, it is to be understood that the preferred embodiments of the invention are illustrated in the drawings and are described in detail herein in that the disclosure is illustrative of the principles of the invention and is intended to illustrate the broad scope of the invention. It should be understood that it is not limited to the examples.

Various innovative disclosures of the invention will be described with particular reference to the preferred embodiments of the invention, which can be advantageously applied to certain problems of multi-service communication systems and methods. However, these embodiments are only one of several examples that would benefit from the innovative disclosure herein. In general, the content described in the specification of this application is not intended to limit any claimed invention. In addition, certain aspects may apply to certain features of the present invention but not to others. In general, unless otherwise stated, a single component may be plural and vice versa without loss of generality.

The following definitions are used throughout the specification.

Gateway is Interface that connects networks or systems of different architectures. For example, the gateway may connect your computer and the World Wide Web or your computer to the PSTN system. The case of the present invention is the latter case.

The gateway is scalable and implemented to support any number of concurrent calls.

The public switched telephone network (PSTN) is a collection of interconnected systems operated by various telephone companies and organizations (telco and PTT) throughout the world.

It is not limited to system blocks or procedural steps (System Blocks / Procedural Steps Not Limitive).

The invention may be suitably described in an exemplary system block diagram and flow chart of procedures. While these items are sufficient to teach those skilled in the art the disclosure of the invention, they do not limit the scope of the invention. Those skilled in the art may combine and rearrange the system block diagrams without losing generality and procedural steps may be added or deleted and rearranged to achieve the same effect without losing the generality of the disclosure. As such, it is to be understood that the invention described in the accompanying exemplary system block diagrams and procedure flowcharts is for purposes of disclosure only and that one of ordinary skill in the art may reconfigure according to the desired target application.

The present invention discloses a variety of processes and procedures that may be implemented to achieve the full scope of the purposes of the present invention. These steps can be performed synchronously or asynchronously. As such, the specific order of a given process does not limit the scope of the invention.

Throughout the description herein, examples of using personal computer (PC) technology to describe the present disclosure are provided. The term 'personal computer' should be interpreted broadly in this respect, and generally, any computing device may be used to practice the present disclosure, and the scope of the present invention is not limited to personal computer applications.

No operating system limitation

In addition, the present invention may be advantageously implemented using various Microsoft operating systems, and should not be construed as limiting the scope of the invention to these specific software components. In particular, the systems and methods disclosed herein may be widely implemented in a variety of systems, some of which may include a graphical user interface. While the multi-service system of the present invention is implemented with IBM's AIX operating system, it should be understood that other operating systems are included within the true scope and spirit of the present invention.

No data structure limitation

The invention may be implemented in various data structures in some preferred embodiments. However, the form of this data structure described herein is merely exemplary. Those skilled in the art will appreciate that various other data structures can be used equivalently in this application. Accordingly, no data structure contained herein should be construed as limiting the scope of the invention.

No voice limit

Many preferred embodiments of the present invention have been described in the context of VoIP applications, and voice is being transmitted over TCP / IP. The disclosure of the present invention is acceptable for any protocol stack based on TCP / IP and can be applied to a variety of other data, audio, video, or multimedia applications, and therefore VOIP applications describe the disclosure of the present invention. However, it does not impose any limitation on the type of information communicated over a communication channel.

Exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the configuration of the emergency command simultaneous call system according to the present invention, Figure 2 is a communication system of the emergency command simultaneous call system according to the present invention connected to the IP PBX via a LAN / WAN transmission facility Figure 3 is a block diagram showing an embodiment, Figure 3 is a block diagram showing an embodiment of a communication system in which the emergency command simultaneous call system according to the present invention is connected to a PBX providing a VoIP interface, Figure 4 is an emergency command according to the present invention 5 is a block diagram showing an embodiment of a communication system in which a simultaneous call system is connected to several exchanges of this type and is integrated with various terminals. FIG. 5 is a group call controlled by an emergency command simultaneous call system according to the present invention. 6 is a flow chart illustrating a method for performing a hotline call by the emergency command simultaneous call system according to the present invention. A flow chart illustrating a method of control.

As shown in the figure, the emergency command simultaneous call in which the present invention is carried out enables a group call by inviting subscribers through both PSTN and IP, and a hotline call between a plurality of host phones and a subscriber phone and a hotline call between subscriber phones. Make it possible. In addition, the subscriber unit is provided with an amplifier unit to enable emergency command broadcasting through both PSTN and IP.

1 is a block diagram showing an emergency command simultaneous call system according to the present invention.

As illustrated, the emergency command simultaneous call system 100 includes one or more host phones 210 through a transmission facility, a gateway, and a PBX, and a subscriber phone 300 including a PSTN, a general telephone through an internal telephone network, and an IP phone. ) Is connected. In addition, the emergency command simultaneous call system is connected to the control panel 200 to be interfaced with the user through the transmission facility.

The emergency command simultaneous call system 100 includes a bridge unit 120, a weighting unit 140, a call holding unit 150, a conference unit 130, and a control unit 110 that controls the connected telephone and the entire system. do.

The bridge unit 120 may be mapped to one-to-one after being set in real time or in advance according to the control of the control unit and the host phone and the subscriber phone that are the targets of the group call or the hotline call. Take control of your phone.

The conference unit 130 activates a group call room in which a target call is connected and a group call is made when a group call or a hotline call is performed.

The weighting unit 140 is connected when the target phone answers the call until the group call is activated during the group call or the hotline call. When the target phone is connected, the set sound source such as melody or standby sound is output. In addition, by setting the ring number of the connected phone can be automatically disconnected after the set number of rings.

The call holding unit 150 is connected to hold the subscriber phone that was on the phone for the call with another phone during the call of the host phone. When the target phone is connected, the set sound source such as melody or standby sound is output. In addition, by setting the ring number of the connected phone can be automatically disconnected after the set number of rings.
The weighting unit 140 is connected to the target phone before being connected to the conference unit 130 performs a corresponding function, such as output of a melody or standby sound, such as setting sound output, ringing the number of times after the set number of rings, and call hold unit When the target phone, which is connected to the conference unit 130 and is in a call, is set to hold a call and waits for a call, the corresponding function is connected and performed.
The call connected to the weighting unit 140 is automatically connected to the call forwarding number after a predetermined time when the call forwarding number is set, the call connected to the call holding unit 140 is reconnected and reconnected according to the subscriber's choice The call can be made.

The controller 110 controls the telephone connected to the entire system. When performing a group call or hotline call function, the bridge unit 120 transmits information on the target phone to control the target phone. The information on the target phone may be used by the user by storing a list of the target phones in advance in a group call, or the target phone may be determined by user designation. During the hot line call, a list of host phones and / or other subscriber telephone groups corresponding to the hotline request call is stored, and when the hotline request event is signaled, information about the corresponding group according to the hotline request call is transmitted to the bridge unit 120. . In addition, when the group call target call is answered, the conference unit 130 is controlled to activate the group call room in the conference unit 130, and the call and host phone answering the call are connected to the group call room. In addition, the packets input from the host phone and the subscriber phone is processed to enable the conference call so that the group call and the hotline call can be made through the group call room.

The VoIP emergency command simultaneous call system is controlled based on the following S / W to implement each function.

System control provides command signals for H.225 and H.245 call control, capability exchange, message and terminal operations.

Media Transmission delivers voice, video, data, and control stream messages to the network interface in a format.

Network Interface supports packet type interface that can provide TCP / UDP unicast and multicast service.

Audio Codec provides G.711, G.722, G.723.1, G.728 and G.729 encoding and decoding.

Video Codec provides video encoding and decoding functions by H.261 and H.263.

The Data Channel provides T.120-compliant database access and file translation.

2 to 4 show an embodiment in which the emergency command simultaneous call system 100 configured as described above is connected to a communication system.

 The gateway 500 performs routing between different networks. Provides interlocking module for external or heterogeneous integration.

That is, conversion / trans coding functions in interworking with PSTN such as IP network and switched circuit network (SCN). The gateway 500 can interoperate with any kind of gateway that supports the H.323 protocol and expand the channel as much as the capacity of the gateway. In addition, it performs VoIP Packetization and Silence Suppression.

Gateway 500 allows a scalable PSTN gateway to connect a call from an H.323 client application to a conventional PSTN telephone system. An inbound call originated from the PSTN is connected to the emergency command simultaneous call system 100 via an IP connection.

Emergency Command Simultaneous Call System 100 The system 100 transmits a digital phone or an analog phone of a PSTN network to an PSTN destination through a gateway () during an outbound call.

The IP PBX 410 is responsible for call processing between the devices connected through the IP phone 300 ′ and the gateway 500.

PBX 420 connects the PSTN and the local telephone network as a private exchange. In the emergency command simultaneous call system 100 according to the present invention, it is preferable to use a PBX capable of VoIP interfacing.

Transmission facility 600, such as LAN or WAN enables data transmission and reception between connected devices.

As such, an analog / digital phone connected by IP phone 300 ', PSTN or PBX connected to transmission facility 600 using gateway 500, IP PBX 410 and / or PBX 420. Regardless of the type of the terminal, the emergency command group call, the emergency command broadcast, and the hotline call can be made to the 300.

The IP phone is connected to the LAN transmission facility 600 to receive a call from the emergency command simultaneous call system 100 and the call is made.

In addition, the telephone connected to the emergency command simultaneous call system includes a telephone provided with an amplifier unit 310 to enable broadcasting using the emergency command simultaneous call system. That is, in the case of the phone having the amplifier unit 310, the set number of calls (ring) is automatically connected to the group call room activated in the conference unit 130, the contents broadcasted by the host phone 210 amplifier unit 310 Is printed through).

The operation panel 200 is interfaced with a user and includes a host phone 210 and an input unit 220. The operation panel 200 may be constituted by a personal computer provided with a telephone. In addition, the operation panel 200 may be configured as an input unit 220 having a host phone 210 and a touch screen or a display unit and a key input device.

The operation and effects of the present invention having such a configuration will be described in detail with reference to FIGS. 5 and 6.

5 is a flowchart illustrating an operation procedure of a control method for controlling a group call function to be performed by an emergency command simultaneous call system according to the present invention.

As shown in the figure, when the user inputs a group call command through the control panel 200 (S100), the controller 210 sends the subscriber information to the bridge unit 120, and the bridge unit 120 is real-time or Control to perform a call to each subscriber phone previously mapped one-to-one (S110).

The call of the bridge unit 120 receives the VoIP call signal through the IP PBX 410 in the case of the IP phone 300 'according to the type of the subscriber phone, and is connected through the gateway 500 in the case of the subscriber phone in the PSTN network. In the case of the subscriber phone of the local telephone network, the PBX 420 or the PBX 420 connected through the gateway 500 may be connected to the VoIP interface.

  The subscriber information may store the group call target list in advance in the control unit 110 so that the user can use it or the user can set the group call target.

The control unit 110 connects the target host phone 210 instructing the group call to the weighting unit 140, and the weighting unit 140 outputs the set sound source from the standby sound or melody to the connected host phone 210 (S120). ).

When the target subscriber phone responds to the call of the bridge unit 120 in step S110 (S130), the control unit 110 activates the group call in the conference unit 130 (S140), and the weighting unit in step S120 The host phone 210 that was connected to 140 is connected to the group call room (S150). Responsive subscriber phone also connects to the group call (S160). The bridge unit 120 continues the set number call until the target subscriber telephone answers. If the subscriber's phone does not answer or is busy, forced call mode can be implemented. Forced call mode is supported when the subscriber's phone is an IP phone.

When the subscriber phone 300 and the host phone 210 are connected to the group call room, the group call is made. When the host phone 210 leaves the group call (S170), the connection between the connected subscriber phone 300 and the group call is blocked and the group call is terminated (S180).

6 is a flowchart showing the operation procedure of the emergency command simultaneous call system control method for performing a hotline call function.

As shown, when a user of a target hotline subscriber phone requests a hotline call (S200), the subscriber's call requesting a hotline call is connected to the weighting unit 140 (S210).

When the hook-off event signal of the hotline phone is input to the controller 110, the controller 110 determines this as a hotline connection request signal. The controller 110 determines the host telephone and / or subscriber telephone group information corresponding to the requested subscriber telephone and transmits the target group information to the bridge unit 120. The control unit 110 stores in advance a database of hotline target subscriber telephones and host telephone and / or subscriber telephone group information corresponding to subscriber telephones.

The bridge unit 120 performs one-to-one mapping with the host phone and / or subscriber phones according to the group information provided by the controller 110 (S220).

The controller 110 controls the bridge unit 120 to stop the call being performed in step S220 when one of the phone calls is received (S230). Then, the controller 110 activates the group call room in the conference unit 130 (S250), and connects the answered call to the group call room (S260). In step S210, the weighting unit 140 connects the subscriber call requesting the hotline call to the group call room (S260).

In this way, a hotline call is made between the phones connected to the group call.

Meanwhile, the Japanese command broadcasting function is as follows. When the user inputs a broadcast function execution command to the broadcast target subscriber phone 300 having the amplifier unit 310 to perform the broadcast function, the controller 110 controls the bridge unit 120 to control the target subscriber phone ( Call 300, and activates the group call to the conference unit (130). The subscriber telephone 300 receiving the call automatically answers after being called more than a set number of times, and connects the subscriber telephone 300 and the broadcast request host telephone 210 to the group call room of the conference unit 130. When the user speaks or outputs the content to be broadcast in the host phone 210 in the state connected to the group call room, it is output through the amplifier unit 310 of the subscriber phone 300.

On the other hand, the emergency command simultaneous call system 100 may further include an adapter for converting the output signal of the radio base into an analog signal. Additional adapters allow emergency command simultaneous calls to the radio.

According to the present invention, it is possible to perform a hotline call and emergency command broadcasting function for a group call and a plurality of host phones and subscriber phones without changing the system regardless of the target medium. In addition, because the conference is handled by VoIP, the sound quality can be prevented even when the number of concurrent callers increases. In addition, since a group call function is provided without using a voice board, the number of simultaneous callers is limited according to channel limitations.                     

Although the above has been illustrated and described with respect to the preferred embodiment of the present invention, the present invention is not limited to the specific preferred embodiment described above, the present invention without departing from the gist of the invention claimed in the claims Various modifications can be made by those skilled in the art, and such changes are within the scope of the claims.

Claims (7)

In the emergency command simultaneous call system connected with one or more host telephones, an operation panel provided with the host telephones and interfacing with a user, and a plurality of subscriber telephones connected through an exchange, A bridge unit configured to control a call to be a group call between the host phone and the subscriber phone; A conference unit that activates a group call when a group call is performed and connects the group call target phone to make a group call; A weighting unit connected to the group call target phone until the group call is activated and connected to the conference unit; A call holding unit which is connected to the conference unit when the group call target phone, which is in a call, is connected to the conference unit; When performing a group call function, the bridge unit controls the group call target phone, and activates a group call room in the conference unit, and connects the subscriber call in response to the group call target host phone and the bridge unit to the group call room. And a controller for processing a packet input from the host phone and the subscriber phone so that a group call can be performed by a conference call. In addition, a system that provides the same function for subscriber telephones subscribed to an exchange supporting a VoIP interface (H.323, SIP, MGCP). The method of claim 1, And the switch is an IP PBX, and the subscriber phone and / or the host phone are IP phones. The method of claim 1, The switch is an analog and or digital switch, VIP emergency command simultaneous call system, characterized in that capable of VoIP interfacing. The method of claim 1, The subscriber telephone is equipped with a broadcasting amplifier for outputting emergency command broadcast VIP emergency command simultaneous call system, characterized in that. The method of claim 1, And the subscriber telephone is a radio and further comprises an adapter for converting an output signal of the radio base into an analogue. Controlling the bridge unit to call the set group call target phone when a group call command is input by the user; Connecting the group call command host phone to the weighting unit; Activating a group call room in a conference unit when the group call target phone answers the call; Connecting the host phone to the group call room; Connecting the answered call to the group call room; And And disconnecting all connected phones when the host phone disconnects from the group call room. Connecting the requesting subscriber phone to a weighting unit when a hotline call request signal is inputted from the subscriber phone; Controlling the bridge unit to call the host phone and / or subscriber phone group corresponding to the requesting subscriber phone; Controlling the bridge unit to stop the call of the step if one host telephone and / or subscriber telephone in the group answers; Activating a group call room in the conference unit; Connecting the answered host phone to the group call; Connecting the subscriber's call requesting a hotline call to the group call room; And And disconnecting the subscriber call from the group call when the host call is disconnected from the group call.

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