KR20090036035A - Method for communicating with group users in voip network and system thereof - Google Patents

Abstract

A method for performing the dispatch and a system thereof are provided to deliver a specific message to a group of subscribers quickly and cheaply as supporting the bi-directional communication when necessary. A command message requested from a specific subscriber is broadcasted to a plurality of target receivers who are subscribed in one or plural VoIP(Voice over Internet Protocol) unit networks(S31). A call state determination unit determines whether the target receivers talk over the telephone with the other person(S32). Based on a processing option corresponding to the determined call state, a command message processing unit processes the transmitted command message(S33). The transmission of the command message is performed by designating the group.

Description

Method for communicating with group users in VoIP network and its system {Method for communicating with group users in VoIP network and System}

The present invention relates to a method and system for performing a command call in a VoIP communication network. More particularly, the present invention relates to a command call capable of quickly distributing a specific message to subscriber group members using VoIP and ensuring a two-way call when necessary. Group communication).

Voice over Internet Protocol (VoIP) is a protocol on how to make voice calls over the Internet. Increasing number of users is increasing due to its inherent advantages such as low call rates. Holding it.

The implementation of broadcast group communication (command call) for subscriber groups has already been done by circuit-switching, but the implementation has not yet been implemented in VoIP communication networks based on packet-type Internet protocol (IP). No.

This has a problem of halving the increasing use of VoIP, and it can also act as a defect that does not meet the needs of users who want to conduct a command call at a lower fee.

The present invention was created to meet the trend of increasing utilization of VoIP and to meet the needs of users. The problem to be solved by the present invention is to promptly propagate a specific message to subscriber groups at low cost, which is an advantage of VoIP. It is to provide a method of conducting a command call in a VoIP environment that can help members make quick decisions by guaranteeing two-way call at each time.

In order to solve the above problems, a method of performing a command call in a VoIP environment disclosed herein is

(a) broadcasting a command message received from a specific subscriber to a plurality of recipients subscribed to one or more VoIP network control units; (b) determining whether the plurality of recipients are talking to another person; And (c) processing the transmitted command message based on a processing option according to the determined call state, thereby solving the technical problem of the present invention.

In order to solve the above problems, the command call performance system in the VoIP environment disclosed herein is

A command message transmitter configured to broadcast a command message received from a specific subscriber to a plurality of recipients subscribed to one or more VoIP communication network control units; A receiver call state determination unit determining whether the plurality of recipients are in a call with another person; And a command message processing unit which processes the transmitted command message based on the processing option according to the determined call state, and solves the technical problem of the present invention.

According to the present invention, it is possible to quickly deliver a specific message to a subscriber group at a low cost, which is an advantage of VoIP, and to make a two-way call when necessary, thereby enabling a command call to help a member make a quick decision, and increase the utilization of VoIP. You can also contribute.

Prior to the description of the specific contents of the present invention, for the sake of understanding, an outline of the technical problem to be solved by the present invention is first presented.

According to the present invention, when the configuration and operation of a communication network in a VoIP environment is expanded and generalized, a predetermined condition for an emergency situation expected in various communication environments is set in advance, and when a specific situation corresponding thereto occurs, the present invention is broadcasted to related group members. It is to propose a command call plan to promptly broadcast the situation and to support two-way calls between group members and to discuss related measures in real time, if necessary.

Hereinafter, the configuration of the invention for clarifying the solution of the technical problem of the present invention will be described in detail with reference to the accompanying drawings based on the preferred embodiment of the present invention, the same configuration in the reference numerals to the components of the drawings The elements have been given the same reference numerals even though they are in different drawings, and it is noted that in the description of the drawings, components of other drawings may be cited if necessary.

1A is a diagram illustrating a unit network of a general VoIP communication network.

The unit network 10 will be defined as a network corresponding to the same concept as a cell covered by one base station in wireless communication. As shown in FIG. 1, the unit network 10 includes a gate keeper 101, user terminals 102 and 103, a gateway 104, and a packet network 105 through which data packets are transmitted and received. .

The gateway 104 is a network terminal point that enables real-time bidirectional communication in a packet-based network, and performs signal processing and voice compression and restoration functions between heterogeneous networks such as the Internet (VoIP), PSTN, ISDN, and ATM. In part, one is connected to a common public network (PSTN) 106 and the other is connected to a packet network (105). That is, the gateway performs interworking function between H.323-based network and non-H.323 network, which is a standard for data transmission through packet-based network.

The gatekeeper 101 provides services related to call control for endpoints registered to the terminal 102, 103, gateway 104, etc., and virtual switches (exchangers) for all calls in the network. ) It is the part that plays the role. The gatekeeper 101 also collectively controls the unit network, such as performing a function of IP address interconversion, number management, authentication control, call authentication, bandwidth control, etc., and may be referred to as a part in which the present invention is actually implemented.

The user terminals 102 and 103 correspond to one end point of real-time two-way communication through the network and should have both a call origination and an incoming call function. For example, an IP phone or a PC may be used as a user terminal having a VoIP function. It operates and accesses the other terminal through the gatekeeper 101 and the gateway 104 to perform a service. FIG. 1B illustrates a VoIP communication network in which a plurality of unit networks shown in FIG. 1A are combined, and is an example of a communication network to which the present invention is implemented.

2A to 2C show a preferred embodiment of the present invention, and FIGS. 3A to 3E show a preferred flow of the present invention.

The command message transmitter 21 is responsible for a function of designating and transmitting a command message, which has received a transmission request from a specific subscriber, to a plurality of recipients subscribed to one or more VoIP unit networks 10 (S31). Part. In this case, the designation of a plurality of recipients may be assumed to designate each individual recipient. However, since the command message is usually transmitted in a group unit, the recipients are designated as a subscriber group according to a predetermined criterion and the group is designated. It is preferable to designate a destination of the message.

There are several criteria for setting up subscriber groups. Depending on the purpose of the VoIP system, it is mandatory for the caller or system administrator to set the target person arbitrarily. For example, the service characteristics of the subscriber or organization utilizing the VoIP system and the physical terminal accommodation environment may be examples. In addition, whether a plurality of subscribers are members of the same unit network 10 or some subscribers or subscribers of another unit network may be a main variable of the group setting criteria.

The command message to be sent can be classified into two types depending on whether the delivery is mandatory. For example, when it is necessary to forcibly deliver certain items to multiple subscribers at the same time, such as the military or the police, and securities companies, department stores, etc. A typical use case may be a case in which specific items are selectively delivered only to a corresponding subscriber according to a prior request of a customer.

The subject of group setting may be an administrator of the unit network 10 or a subscriber itself.

When the administrator forcibly sets a subscriber as a group, the function of supporting the group command call should be preceded by the gatekeeper 101 of the unit network 10 to which the subscriber belongs. The manager inputs a group call target to the gatekeeper 101 in advance to maintain the list. At this time, when there is a need to maintain a plurality of groups, it is easy to distinguish each other by specifying a separate delimiter such as a number name for each group. If the subscribers are distributed and accommodated in other unit networks, they should be interoperable with the relevant gatekeepers so that the subscribers in the gatekeepers are managed in the same specific group.

In addition, when a subscriber sets up a group by his / her own autonomy, the group manager prepares a separate registration number in accordance with the VoIP numbering system in his / her gatekeeper in advance. After accessing to the network, the process of checking for registration withdrawal, etc., automatically obtains the unique number for the terminal, and adds or deletes it to the specific group subscriber list of the gatekeeper.

The procedure for sending the command message to the designated subscriber group is as follows.

First, a plurality of recipients are searched for in a group designated by the recipient searcher 211 (S311). Next, the same unit network subscriber determination unit 212 determines whether a plurality of retrieved recipients are joined together in one unit network (S312).

When the message casting unit 213 determines that a plurality of searched recipients are joined together in one unit network, the message casting unit 213 multicasts a command message to the searched plurality of recipients, and joins the other unit networks. If it is determined that the command message is unicast (uni-casting) (S313).

In case of multicasting command message, class D type address allocated for multicasting is used in IP address system. Class D addresses are all 32-bit IP addresses (224.0.0.0 to 239.255.255.255) beginning with 1110. Multicasting uses IGMP (Internet Group Management Protocol). It converts the IP multicast address of the communication party to the physical multicast address and delivers the command message. The physical multicast address refers to a protocol, device, or address capable of supporting multicasting at the network layer or lower, such as an Ethernet MAC address.

In case of unicasting the command message, the message is transmitted according to the usual VoIP protocol. To the recipients subscribed to the other network, the logical channel is secured through negotiation process such as communication channel setting through the gatekeeper of the other network. Initiate a call.

In this case, the normal procedure refers to the procedure of establishing a call using H.225 → exchanging information using H.245 → establishing a communication channel → calling a service and ending a call. Admission and Status) When signaling is opened and the call is established, the H.245 control channel is established to negotiate the available capacity of the channel, and then a logical channel for data transmission is established according to the negotiation result, and RTP, RTCP and UDP protocols for transmission are established. To communicate.

The Q.931 protocol used for call signaling includes various types of messages such as Setup, Call Proceeding, etc. In this message, necessary information such as IP, port number, voice codec information and caller's telephone number to transmit voice call is included. .

When the transmission of the command message is completed, the call state determining unit 22 determines whether the recipient of the command message is in communication with another person, that is, the current call state of the receiving party (S32), and the command message processing unit 23 determines the current The command message transmitted according to the call state is prescribedly processed (S33).

When the call state determining unit 22 determines that the current call state of the receiving party is 'non-call', the message reading determining unit 231 first determines whether the plurality of retrieved recipients have read the transmitted message (S331). .

The two-way communication channel setting determination unit 232 determines whether the two-way communication channel is established between the receiving party and the subscriber after being notified by the read determining unit 231 that the recipient of the message has been read. It is determined whether the bidirectional communication channel is set immediately without receiving (S332).

When the message unicasting unit 233 is notified that the communication channel is set by the bidirectional communication channel setting determination unit 232, the message unicasting unit 233 unicasts the command message from the subscriber to the receiving target (S333).

When the call state determiner 22 determines that the current call state of the called party is 'calling', two events, an event of 'calling' and a 'receiving command message (reading)', are generated. It is necessary to process certain events first.

To this end, the selection execution unit 234 selects and executes any one of a 'call' state and a 'reading of the command message by the receiver' (S334). At this time, the select action is performed so that the 'reading process' is performed before the 'calling' state so that the called party stops the call and performs the read processing, or the 'calling' state is performed first so that the called party ends the call. The read processing may be performed later, or may be set to be arbitrarily selected by the receiving party.

When the selection execution unit 234 selects and performs a 'call' state, the bidirectional communication channel setting determination unit 232 determines whether a bidirectional communication channel is established between the receiving party and the subscriber after the call is terminated ( In step S332, when the message unicasting unit 233 is notified that the communication channel is set by the bidirectional communication channel setting determination unit 232, the message unicasting unit 233 unicasts the command message from the subscriber to the receiving target (S333).

When the selection execution unit 234 selects and executes the 'read processing', it is determined by the message read determination unit 231 whether the plurality of search target recipients have read the transmitted message (S331). The bidirectional communication channel setting determining unit 232 determines whether a bidirectional communication channel is established between the receiving party and the subscriber after receiving a notification from the read determining unit 231 that the message has been read. It is determined whether this is set (S332).

When the message unicasting unit 233 is notified that the communication channel is set by the bidirectional communication channel setting determination unit 232, the message unicasting unit 233 unicasts the command message from the subscriber to the receiving target (S333).

As seen above, it is checked whether a bidirectional communication channel is established between the subscriber and the receiver regardless of the current call state of the receiver. If it is not set, the transmitted command message is treated as an "missing message" and stored in the missed message storage unit 235 (S335).

The absence message providing / deleting unit 236 provides a message sent to the receiving party when the receiving party requests confirmation of the 'out of office message', and if the confirmation request is not elapsed after a certain time, the 'missing message' is provided. Delete (S336).

The present invention can also be embodied in computer readable code on a computer readable recording medium. Computer-readable recording media include any type of recording device that stores data that can be read by a computer system.

Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention.

Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope will be construed as being included in the present invention.

1A is a diagram illustrating a unit network of a general VoIP communication network.

FIG. 1B is a diagram illustrating a VoIP communication network in which a plurality of unit networks shown in FIG. 1A are combined, and illustrates an example of a communication network to which the present invention is implemented.

Figures 2a to 2c is a view showing a preferred embodiment of the present invention system.

3a to 3e show a preferred flow of the method of the present invention.

Claims (17)

(a) designating and broadcasting a command message receiving a request for transmission from a specific subscriber by designating a plurality of recipients subscribed to one or more VoIP unit networks; (b) determining whether the plurality of recipients are talking to another person; And and (c) subjecting the transmitted command message to a predetermined process based on a processing option according to the determined call state. The method of claim 1, The subscriber and the plurality of recipients are set to a plurality of subscriber groups by the unit network manager or the subscriber, and the transmission of the command message according to step (a) is performed by designating the group. Method of performing command call in communication network. The method of claim 2, wherein step (a) (a1) searching for the plurality of recipients in the designated group; (a2) determining whether the plurality of searched recipients are subscribed together in the one unit network; And (a3) a command call in a VoIP communication network comprising multicasting the message to the plurality of searched recipients when the subscriber is subscribed to the single unit network, and otherwise unicasting the message. How to do it. The method of claim 3, wherein if the call state is 'non-call' as a result of the determination of step (b), step (c) (c1) determining whether the searched plurality of recipients have read the transmitted message; (c2) If it is read, it is determined that the two-way communication channel is established between the receiving party and the subscriber after being notified that the message has been read by the receiving party, and if not, the two-way communication channel is immediately set. Determining; And and (c3) if the bidirectional communication channel is established, unicasting the message from the subscriber to the receiving party. The method of claim 3, wherein if the call state is 'in a call' as a result of the determination in step (b), step (c) (c1) selecting and performing any one of the 'in call' state and 'read processing' of the command message by the receiving party; (c2) when the call is selected and performed, determining whether a two-way communication channel is established between the receiver and the subscriber after a call is terminated; And and (c3) if the bidirectional communication channel is established, unicasting the message from the subscriber to the receiving party. The method of claim 5, wherein in the case of performing (c1) by selecting the 'read processing' (c2) determining whether the searched plurality of recipients read the transmitted message; (c3) If it is read, it is determined that the bidirectional communication channel is established between the receiving party and the subscriber after being notified that the message has been read by the receiving party, and if it is not read, the bidirectional communication channel is immediately set. Determining; And and (c4) if the bidirectional communication channel is established, unicasting the message from the subscriber to the receiver. 7. The method of claim 6, wherein performing said selection Performing the command call in the VoIP communication network, characterized in that the read processing is first performed in the 'in a call' state, the 'in a call' state is first performed, or the recipient can be selected arbitrarily Way. The method according to any one of claims 4 to 7, If the bidirectional communication channel is not established, storing the transmitted message as an 'missing message'; And When the receiving party makes a request for confirmation of the 'absence message', further comprising the step of providing the transmitted message to the receiving party, and if the confirmation request is not elapsed even after a predetermined time elapses. Method of performing command call in VoIP communication network. A computer-readable recording medium having recorded thereon a program for executing the method of claim 8 on a computer. A command message transmitter configured to broadcast a command message receiving a request for transmission from a specific subscriber by designating a plurality of recipients subscribed to one or more VoIP unit networks; A call state determination unit that determines whether the plurality of recipients are in a call with another person; And And a command message processing unit configured to process the transmitted command message based on a processing option according to the determined call state. The method of claim 10, The subscriber and the plurality of recipients are set to a plurality of subscriber groups by the unit network manager or the subscriber, and the command call is performed in the VoIP communication network, wherein the command message is transmitted by designating the group. system. The method of claim 11, wherein the command message transmission unit A reception target search unit for searching the plurality of reception targets in the designated group; An identical unit network subscription determining unit configured to determine whether the plurality of searched recipients are subscribed to the unit network together; And In the case of subscribing to one unit network together, the system includes a message casting unit for multicasting the message to the plurality of searched recipients, and otherwise, unicasting the message. . The command message processor of claim 12, wherein the command message processor is further configured to determine that the call state is 'non-call'. A message read determination unit to determine whether the plurality of searched recipients have read the transmitted message; In case of reading, it is determined whether the bidirectional communication channel is established between the receiving party and the subscriber after being notified by the read judging unit that the message has been read, and in case of not reading, the bidirectional communication channel is immediately determined. A bidirectional communication channel setting determination unit; And And a message unicasting unit for unicasting the message from the subscriber to the receiving target when the bidirectional communication channel is established. The command message processor of claim 12, wherein the command message processor is further configured to determine that the call state is 'in a call'. A selection execution unit which selects and executes any one of the 'in call' state and 'read processing' of the command message by the receiver; A bidirectional communication channel setting determination unit determining whether a bidirectional communication channel is established between the receiver and the subscriber after a call is terminated when the call is selected; And And a message unicasting unit for unicasting the message from the subscriber to the receiving target when the bidirectional communication channel is established. 15. The method of claim 14, wherein when the selection execution unit selects and performs the 'read processing' A message read determination unit to determine whether the plurality of searched recipients have read the transmitted message; In case of reading, it is determined whether the bidirectional communication channel is established between the receiving party and the subscriber after being notified by the read judging unit that the message has been read, and in case of not reading, the bidirectional communication channel is immediately determined. A bidirectional communication channel setting determination unit; And And a message unicasting unit for unicasting the message from the subscriber to the receiving target when the bidirectional communication channel is established. 16. The method of claim 15, wherein the performing of the selection by the selecting execution unit is performed. Performing the command call in the VoIP communication network, characterized in that the read processing is first performed in the 'in a call' state, the 'in a call' state is first performed, or the recipient can be selected arbitrarily system. The method according to any one of claims 13 to 16, An missed message storage unit for storing the transmitted message as an 'missed message' when the bidirectional communication channel is not set; And When the receiving party makes a request for confirmation of the 'missing message', the received message is provided to the receiving party, and the missing message providing / deleting unit deletes when the confirmation request is not passed even after a predetermined time. Command call performance system in the VoIP communication network comprising a.

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