KR101226207B1 - Wire/wireless conversion communication system using low power wireless terminal for group call control method - Google Patents

Abstract

The present invention relates to a group call control method using a wired / wireless integrated communication system through a small power dedicated wireless terminal. The present invention accommodates an IP-type low power dedicated wireless terminal through a dedicated repeater, and simultaneously accommodates a wired analog terminal, a wired IP phone and a paging phone, and sound power, and a call mixer is built into the matrix switch. And a structure accommodating hardware (H / W) functional blocks connected in units of SHW. As a result, the work efficiency is increased by integrating wired and wireless, and it is connected with a sound power or a paging phone system for use of a specific facility, thereby providing a convenient and efficient use of communication.

Description

Group call control method using wired / wireless integrated communication system through low power dedicated wireless terminal {WIRE / WIRELESS CONVERSION COMMUNICATION SYSTEM USING LOW POWER WIRELESS TERMINAL FOR GROUP CALL CONTROL METHOD}

The present invention relates to a wired / wireless integrated communication technology that supports group call processing, sound power, and interworking with a paging system and accommodates subscribers of a low power dedicated wireless terminal. The present invention relates to a group call control method using a wired / wireless integrated communication system through a small power dedicated wireless terminal which allows a simultaneous group call of up to 10 persons designated as a group using a mixer.

In general, a private branch exchange (PBX) is a switched connection between telephones using a public switched telephone network (PSTN) or an extension telephone and a trunk line (telephone telephone telephone line) at a business office, company, factory, or hotel. Exchange is running. The private exchange is changed from an idle switch which performs all connections such as incoming calls from the trunk line to the station, outgoing connection from the station to the trunk line, and interconnection between stations, through relay switches of the mechanical contact switchgear, crossbar switches, etc. It has evolved and developed into an electronic exchange (EPBX) of accumulated program control method using a microprocessor or IC memory.

As the performance and technology of the private exchange have advanced as described above, the requirements for the functions have increased so that they are not satisfied with the original functions of the private exchange, and the demand for various additional services is urgently needed. Among the various requirements for value-added services, the value-added service requirements for group, team, or departmental call control are becoming more and more important due to the characteristics of the workplace, the main user of the private exchange.

[Related Technical Literature]

Emergency communication system for fire protection of nuclear power plant (Patent Application No. 10-2007-0097671)

Wired / wireless composite communication device (Patent Application No. 10-2004-0029127)

The present invention is to solve the above problems, by providing a low power dedicated wireless terminal with a maximum output of less than 10mW and a dedicated relay and a system for controlling the same so as not to affect the nuclear power plant measuring equipment and electronic devices, paging system of the nuclear power plant And a group call control method using a wired / wireless integrated communication system through a small power dedicated wireless terminal for integrating various wired communication systems such as sound power.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In the group call control method using a wired / wireless integrated communication system using a small power dedicated wireless terminal according to an embodiment of the present invention, the group call control of the wired / wireless integrated communication system is performed in a group using a call processing module and a call mixer. In the group call control method for a simultaneous call, when the subscriber A of the first analog terminal picks up the handset of the first analog terminal and presses the group call telephone number of the group to which he belongs, the call processing module A call request for a connection to use the call mixer (Call Mixer) as a switch module, the switch module is requested to connect to the call mixer (Call Mixer) after connecting the call mixer (Call Mixer) and the call processing A first step of notifying the module A of the result of the connection; The call processing module A transmits a ring to the subscriber B having the second analog terminal of the group to which the subscriber A belongs, and the subscriber of the wired IP phone of the group to which the subscriber A belongs. C) sets up the IP address and calling number (telephone number of the subscriber A) and called number (telephone number of the subscriber C) assigned to the subscriber C with the IP server module A to send a message to C). A second step carried in a (SETUP) message; When the IP server module A transmits a setup acknowledgment to the call processing module A, generates and transmits an INVITE message to the L2 switch, the L2 switch receives the received byte message. Transmitting to the wired IP phone; When the call processing module A requests a ring to the wired IP phone, and the wired IP phone sends an ALERT (180 Ring) message to inform the L2 switch that the ring is a ring, the L2 switch, A fourth step of transmitting the ALERT (180 Ring) message to the IP server module A; When the IP server module A transmits an ALERT message to the call processing module A to inform that the subscriber C is busy in a ring, the call processing module A transmits an RBT to the first analog terminal. A fifth step of requesting a ring back tone; When the subscriber C picks up the handset (Hook off), the wired IP phone sends a response signal (200 OK) message to the L2 switch, the L2 switch, the received response signal 200 Transmitting an IP message to the IP server module A; When the IP server module A transmits a Commit (CONNECT) message to the call processing module A (10) to indicate that the subscriber (C) has picked up the receiver, the call processing module (A) 10 connects (CONNECT ACK). Responding with a seventh step; When the subscriber B of the second analog terminal picks up the handset and picks up the call, the second analog terminal transmits a hook off to the call processing module A. An eighth step in which group members of the group to which the group belongs receive a call and perform a group call using a call mixer; When the call is over and the handset is put down by the subscriber A, the call processing module A transmits a BT (Busy Tone) to the subscriber B of the analog terminal, A ninth step of sending a release message to the IP server module A to notify subscriber C that the group call has ended; When the IP server module A transmits a BYE message to the L2 switch 15, the L2 switch 15 receives the received BYE message from the subscriber C of the wired IP phone 18. 10) transmitting a BT (Busy Tone) to the subscriber (C) of the wired IP phone receiving the BYE message and notifying that the group call is terminated; When the wired IP phone sends a call release completion message (200 OK) to the L2 switch for the BYE message, the L2 switch sends the received call release completion message (200 OK) to the IP server module A. An eleventh step of transmitting; And a twelfth step of the IP server module A sending a RELEASE COMPLETE message to the call processing module to terminate the group call of the group to which the subscriber A belongs. Characterized in that it comprises a.

In the group call control method using a wired / wireless integrated communication system through a low power dedicated wireless terminal according to another embodiment of the present invention, the group call control of the wired / wireless integrated communication system uses a call processing module and a call mixer. It is characterized by being able to make a group call between up to 10 people designated as one group.

Group call control method using a wired / wireless integrated communication system through a low power dedicated wireless terminal according to an embodiment of the present invention, by increasing the efficiency of the work by integrating the wired and wireless, the sound power or paging phone system and It is also linked to the use of communication provides a convenient and efficient effect.

In addition, according to another embodiment of the present invention, a group call control method using a wired / wireless integrated communication system through a low power dedicated wireless terminal enables simultaneous group call of group subscribers set as a group, thereby increasing work efficiency and managing a group. It provides an effect that can facilitate the.

In addition, the group call control method using a wired / wireless integrated communication system through a low power dedicated wireless terminal according to another embodiment of the present invention, the low power dedicated wireless terminal provides various convenient functions in use, and also provides the maximum output of the wireless terminal. By limiting to less than 10mW to solve the problem of the malfunction of the facility due to electromagnetic waves, it enables the wireless communication in a limited specific area to provide a very convenient application in the business environment.

1 is a block diagram showing a wired and wireless integrated communication system using a small power dedicated wireless terminal according to an embodiment of the present invention.
2 is a detailed reference view for explaining a function for a call mixer in the matrix switch / call mixer 51 of FIG.
Figure 3 is a block diagram of a group call call processing system by a private exchange using a call processing module and a call mixer (Call Mixer) function applied to the wired and wireless integrated system of FIG.
4 is a flowchart illustrating a group call control method using a wired / wireless integrated communication system using a small power dedicated wireless terminal according to an embodiment of the present invention.
5 is a view showing the structure of a low power dedicated wireless terminal in a wired / wireless integrated communication system using a low power dedicated wireless terminal according to an embodiment of the present invention.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In the present specification, when any one element 'transmits' data or signals to another element, the element can transmit the data or signal directly to the other element, and through at least one other element Data or signal can be transmitted to another component.

1 is a block diagram illustrating a wired / wireless integrated communication system 1 using a small power dedicated wireless terminal according to an embodiment of the present invention, and FIG. 2 is a function of a call mixer in the matrix switch / call mixer device 51 of FIG. 1. Detailed reference drawings for explaining the following.

1 and 2, the wired / wireless integrated communication system 1 provides IP subscriber interworking with a matching block 54 providing legacy subscriber matching and IP subscriber interworking to provide IP subscriber interworking. And an extension gateway 56, and an analog relay line matching device 61, which is a trunk line analog subscriber relay device, and a digital trunk line matching device 62, which is a trunk line digital relay device, for interworking with an external call. The main controller 52 is provided with a server block for call control of subscribers, such as IP and wireless, and overall call interworking. In addition, a SHW 64, which is a block providing switching to a common block, and a tone announcement (Tone / Anm.) 58, which is a block providing and detecting various guides and tones, are provided.

On the other hand, the group call control block for the interworking of the group call to the common block is provided in redundancy, and the subscriber block is added a sound power matching device 55, which is a sound power interlocking block that provides interworking with the existing sound power system. .

The sound power matching device 55, which is a card that provides sound power and connection, is matched with the existing system by PCM, and the channel control is controlled through the local bus 65, and channel selection is possible to catch arbitrary channels of sound power. There is a function.

 In addition, for interworking with the existing paging system, the paging phone 72 is connected through the paging interlocking device 71, which is an existing analog relay device, and the paging channel and the system internal circuit and the software (S / W) function It supports relay interworking function between wireless terminals.

Meanwhile, the repeater 16 has an outer case coated with lead for radioactive shielding for connection with wired and wireless, and wirelessly through a dedicated repeater capable of secure connection and handover processing when the low power dedicated wireless terminal is moved. Is connected.

That is, the repeater 16, which is a dedicated repeater, is interlocked with the system through an Ethernet cable which is wired, and transmits a signal to the wireless terminal 17, which is a low power dedicated wireless terminal, through a wireless connection of Wi-Fi method. Give and take

The low power dedicated wireless terminal 17 can be used only when it is registered in the wired / wireless integrated communication system 1, and the low power dedicated wireless terminal 17 in order to restrict the connection of other wireless terminals when connected with the wired / wireless integrated communication system 1. ) And cryptographic access between the system (1).

The low power dedicated wireless terminal 17 is designed to limit the output in order to minimize the influence of electromagnetic waves when used in a specific area, and is designed to have a maximum output of 10 mW or less. In addition, the low power dedicated wireless terminal 17 provides convenience for worker use through various additional functions such as PTT (Push To Talk) function and auto answering function, and registers group setting for group call connection for various group call connection. It has a delete function and a group call request function.

The low power dedicated wireless terminal 17 can be registered in several groups as occasion demands, and the maximum configuration of one group is 10 people, and the system can operate up to 10 groups, for use in a noise space. Earjacks are provided for different types of phone matching.

The wired / wireless integrated communication system 1 is configured in units of blocks as shown in FIG. 1, and thus, a distributed processing of each function is performed. The signal of the call is based on the matrix switch 51. The control signal is connected to the local bus (65) through the main controller 52, and the hardware (H / W) of each functional block is configured and controls the software. The (S / W) block handles this.

The wired / wireless integrated communication system 1 for the service of a specific region is connected to a sound power matching device 55 which is a sound power interworking module 55 and a paging interlocking device 71 which provides an interlocking module for the paging phone 72. Each processing structure has a universal slot structure, and thus it is easy to add and delete according to the purpose of each functional block.

As described above, the capacity of each functional block of the wire / wireless integrated system 1 may be increased in units of PBAs to increase the capacity. MD5 signal processing module is embedded in the IP server function stage of the wired / wireless integrated communication system so that the small output dedicated wireless terminal 17 and MD5 authentication before signal processing are configured to transmit and receive signals. It is characterized by the restrictions on the security and the use of other wireless terminals according to the movement of.

 The main controller 52 of the wired / wireless integrated system 1 receives a request signal when requesting a group call connection of the small power dedicated wireless terminal 17, views channel information of the corresponding group, sends a call signal to the corresponding subscriber, and then connects the call to the subscriber. By controlling the switch according to the call mixer (call mixer) function of the matrix switch / call mixer (51) (mixer) to the call (mixer) to the corresponding channel in turn.

In the wired / wireless integrated system 1, as shown in FIG. 1, a device for mixing a group call is placed together with a matrix switch / call mixer device 51 so as to convert a digital PCM signal. Digital PCMs (SHW) are mixed and retransmitted. 64 (SHW) is composed of 64 time slots per one SHW can carry 64 data at the same time.

The detailed diagram of the functional block for the call mixer in the matrix switch / call mixer 51 is shown in FIG. 2, and the control receives the information from the local bus 65 and mixes the mixed signals in each time slot. Reassign to (Time slot) and resend.

The main controller 52 for controlling the call controls various devices through a local bus 65, and is connected to an operation terminal (not shown) via Ethernet to output operational information of a state. Can receive operational data at initial startup,

Tone Announcement (Tone / Anm.) 58 is responsible for transmitting various signals and receiving Digit signals.

The analog subscriber matching device 54, the sound power matching device 55, and the IP subscriber server / extension gateway 56 are station subscriber matching parts, and the analog subscriber matching device 54 is responsible for analog line matching and sound power matching. Device 55 is responsible for sound power channel matching. IP Subscriber Server / Extension Gateway 56 The server function of controlling the call of the IP subscriber and the extension gateway function are simultaneously accommodated.

Analog trunk line matching device 61, digital trunk line matching device 62, and VoIP relay gateway matching device 68 are the relay parts interworking with the external device of the call. Analog relay line matching device 61 is the analog trunk line matching device. It is configured as a matching function is also matched with the CO line, it is possible to call to the paging phone 72 by interlocking with the paging interlocking device (71). The digital trunk line matching device 62 is a digital trunk line matching device. The digital trunk line matching device 62 provides matching with a local exchange of the PSTN network 73 in an E1 manner, and is also interoperable with a private branch exchange (PBX) 73. VoIP relay gateway matching device 63 performs a gateway (Gateway) function that can be connected to the external IP network 74 by the IP method, and processes the relay call to the IP call.

3 is a block diagram of a group call call processing system using a private branch exchange (PBX) 10, 11, and 12 using a call processing module and a call mixer function applied to a wired / wireless integrated system 1. It is also.

As shown in Figure 3, the group call call processing system of the private exchange 10, 11, 12 using the call processing module and the call mixer function applied to the present invention is a plurality of analog terminals 13, The wired IP phone 18, and a plurality of wireless terminals 17 are used for the purpose of controlling the group call of the group.

A plurality of analog terminals 13 are connected to the FXO or FXS ports of the PBXs 10, 11 and 12, and the wired IP phone 18 is connected to the IP server module A 12 and the L2 switch 15. After being connected by wire, some ports of the L2 switch 15 are connected by wire to configure IP communication. In addition, after the IP server module 12 and the L2 switch 15 are connected by wires, the plurality of wireless terminals 17 may wirelessly connect the wireless access pointer 16 to some ports of the L2 switch 15 by wire. It is configured to be possible.

Here, the private exchange 10, 11, 12 refers to the exchange used to connect the call. Main services include telephone service, wake up call service, message service (current time, weather, temperature, breakfast information, etc.), customer service on site, customer elevator emergency button response, telex, Send and receive faxes and provide various information (business hours, promotional events, phone numbers, etc.). The call processing module 10, the switch module 11, and the IP server module A 12 are mounted inside the private exchange 10, 11, 12. The call processing module 10 is a general telephone ( POTS: This function converts voice data generated from analog terminal 13, 14 and wired IP phone 18 into Plane Old Telephone Service (RTP) data to RTP (Real Time Protocol) data and transmits it to a desired destination.

On the contrary, it converts the voice data received through the RTP into voice data that can be processed in the private exchange (10, 11, 12) and transmits to the analog terminal 13, which is a general telephone.

The call processing protocol used in the wired IP phone 18, which is an IP terminal, is SIP (Session Initiation Protocol), and the SIP protocol is simple to process and standardized as a communication protocol standard. It is possible.

Once again, the SIP is described. As a text-based application layer control protocol for multimedia call control such as video and voice, it is independent of the lower transport protocol. Services using the SIP include video calls, teleconferences, messages, and event notifications, which are defined in the IETF's Working Group (WG) RFC 3261 document.

A subscriber card (not shown) is provided inside the private switchboards 10, 11, and 12 for accommodating ordinary telephone subscribers.

On the other hand, the VoIP (Voice Packet Network VoIP) is a communication technology that can be called over the Internet, using a conventional data communication packet network for Internet phones, VoIP (Voice over Internet Protocol) do. It is a communication service technology that allows voice calls to be converted into Internet protocol data packets to enable calls over general telephone networks. The cable can be used by multiple people at the same time, expandable and much cheaper than traditional phones.

Protocols include H.323 and SIP / MGCP / MEGACO. Most VoIP equipment used in Korea is H.323 as of 2003. There are three global technical standards: VoIP and VoFR / VoATM. In some cases, a computer can be used as a dial pad, or an IP phone or a dedicated router sold by a professional network equipment company such as CISCO may be used.

The operation of the group call call processing system of the private exchanges 10, 11, and 12 using the call processing module and the call mixer function configured as described above will be described in detail with reference to FIG.

4 is a flowchart illustrating a group call control method using a wired / wireless integrated communication system using a small power dedicated wireless terminal according to an embodiment of the present invention. More specifically, it is a flowchart showing a group call call processing method of the private exchange 10, 11, 12 using the call processing module and the call mixer function according to the wired / wireless integrated communication system 1.

The call processing flow in the case of making a group call between the subscriber B of the analog terminal 14 and the subscriber C of the wired IP phone 18 of the group to which the subscriber A of the analog terminal 13 belongs is shown.

When the subscriber A of the analog terminal 13 picks up the handset of the analog terminal 13 (Hook off) (S20) and presses the group call phone number of the group to which he belongs, the call processing module A 10 is switched module ( 11) to request the connection to use the call mixer (Call Mixer) (S21), the switch module 11 is requested to connect to the call mixer (Call Mixer) after connecting the call mixer (Call Mixer) The call processing module A 10 notifies the result of the connection (S22).

After a successful connection to the call mixer (Call Mixer), and transmits the ring (Ring) to the subscriber (B) with the analog terminal 14 of the group to which the subscriber (A) with the analog terminal 13 belongs (S23) ), In order to send a message to the subscriber (C) of the wired IP phone 18 of the group to which the subscriber (A) belongs, the call processing module A (10) is an IP server module A (12) assigned to the subscriber (C) And the calling number (subscriber A's telephone number) and the called number (subscriber C's telephone number) are sent in a SETUP message (S24).

After receiving the setup message, the IP server module A (12) transmits a setup ACK to the call processing module A (10) (S25), and generates an SIP message (INVITE) message to the L2 switch (15). By transmitting (S26), the L2 switch 15 transmits the received invite message to the wired IP phone 18 subscriber (C) (S27).

Call processing module A (10) requests a ring (RING) to the subscriber (C) (S28), IP telephone subscriber (C) to the L2 switch (15) to inform that their phone is a ring (RING) ALERT ( 180 Ring) to give a message (S29), L2 switch 15 transmits the received ALERT (180 Ring) message to the IP server module A (12) (S30).

After the step S30, the IP server module A 12 drops the ALERT message to the call processing module A to notify that the subscriber C is in the ring (S31), and the call processing received the allot message. Module A (10) tells the subscriber (A) to the ring back tone (RBT) (S32).

After step S32, when the subscriber C picks up the handset and picks up the phone (Hook off) (S33), the wired IP phone 18 gives a response signal (200 OK) to the L2 switch 15 (S34). The L2 switch 15 transmits the received response signal 200 OK message (ANSWER message) to the IP server module A 12 (S35), and receives the response signal (200 OK message (ANSWER message)) from the IP server. Module A 12 sends a Commit (CONNECT) message to call processing module A 10 (S36) to indicate that subscriber C has picked up the receiver.

After step S36, the call processing module A 10 responds with a CONNECT ACK (S37), and when the subscriber B of the analog terminal 14 picks up the handset to answer the call (Sook off) (S38). The hook processing is transmitted to the call processing module A 10 (S39), and the group members of the group to which the subscriber A belongs are answered and the group call is performed using a call mixer (Call Mixer). S40).

And after the end of the call, the subscriber A hangs up the handset (S41) and the call processing module A 10 informs the subscriber B of the analog terminal 14 that the group call has ended. (Busy Tone) is transmitted (S42), the call processing module A (10) is released to the IP server module A (12) to inform the subscriber (C) of the wired IP phone 18 that the group call has ended (RELEASE). The message is transmitted (S43).

The IP server module A (12) receiving the RELEASE message transmits a BYE message, which is a SIP message, to the L2 switch 15 (S44), and the L2 switch 15 receives the received BYE message. It transmits to subscriber C of wired IP phone 18 (S45), and outputs BT (Busy Tone) to subscriber C of wired IP phone 18 which has received a BYE message, indicating that the group call has ended. Inform (S46).

Wired IP phone 18 subscriber (C) by controlling the wired IP phone 18 to send a call release complete (200 OK message) signal for the BYE message to the L2 switch 15, the L2 switch ( 15) transmits the received call release completion (200 OK message) signal to the IP server module A (12) (S48).

Accordingly, the IP server module A 12 transmits a RELEASE COMPLETE message to the call processing module A 10 (S49). Accordingly, the group call of the group to which the subscriber A belongs is terminated.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored.

Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) .

The computer readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers skilled in the art to which the present invention pertains.

5 is a view showing the structure of a low power dedicated wireless terminal 17 in the wired / wireless integrated communication system 1 using the low power dedicated wireless terminal according to the embodiment of the present invention. The control unit (Main CPU & Control Logic) (120) controls the various hardware (H / W) that is a component of the low power dedicated wireless terminal 17, the driver (driver) and operating software (S / W), call processing (S / W) Application software such as S is embedded and managed.

 RF transmitter and receiver 110 is configured to be set to 10mW or less in order to limit the output to minimize the effects of electromagnetic waves, such as EMI. The control unit 120 is configured to encrypt the signal (mix) by automatically mixing (signaling) the signal when the MD5 security settings from the wired and wireless integrated communication system (1), the small output dedicated wireless terminal 17 is a separate process It is possible without.

The ear jack 160 has ear jack ports for mounting various earphone types. Set up the PTT function during group call and have a key input unit 152 that can be used as a PTT key in parallel with the volume key, and the key input unit 152 sends out a specific key * or # for setting and registration. This is implemented to be possible. Information of the setting state is displayed on the display unit 151 which is a terminal LCD window. This provides the convenience of using a low power dedicated wireless terminal 100 in the noise environment.

The low power wireless terminal 17 has an auto answer function for auto answering during operation. Call incoming and outgoing state is stored in the memory unit 130 or more can check the state. The low power dedicated wireless terminal 17 has an external case coated with lead for shielding radiation, and transmits and receives data to and from the system through a dedicated repeater capable of secure connection and handover processing when moving.

As described above, the specification and the drawings have been described with respect to the preferred embodiments of the present invention, although specific terms are used, it is only used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the invention. It is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

13, 14: analog terminal 15: L2 switch
16: Repeater 17: Wireless Terminal
18: wired IP terminal 19: sound power
51: matrix switch / call mixer device 52: main controller
53: tone announcement device 54: analog subscriber matching device
55: sound power matching device 56: IP subscriber server / extension gateway
61: analog repeater matching device 62: digital repeater matching device
63: IP relay gateway matching device 64: SHW
65: local bus 71: page linkage
72: paging phone 73: PSTN network
74: IP network

Claims (2)

In the group call control of the wired / wireless integrated communication system, a group call control method for simultaneous call in one group using a call processing module and a call mixer,
When the subscriber A of the first analog terminal picks up the handset of the first analog terminal and presses the group call phone number of the group to which the first analog terminal belongs, the call processing module A switches the call mixer to the switch module. Requesting connection so that the call module can connect to the call mixer and then notify the call processing module A of the result of the connection. Stage 1;
The call processing module A transmits a ring to the subscriber B having the second analog terminal of the group to which the subscriber A belongs, and the subscriber of the wired IP phone of the group to which the subscriber A belongs. C) sets up the IP address and calling number (telephone number of the subscriber A) and called number (telephone number of the subscriber C) assigned to the subscriber C with the IP server module A to send a message to C). A second step carried in a (SETUP) message;
When the IP server module A transmits a setup acknowledgment to the call processing module A, generates and transmits an INVITE message to the L2 switch, the L2 switch receives the received byte message. Transmitting to the wired IP phone;
When the call processing module A requests a ring to the wired IP phone, and the wired IP phone sends an ALERT (180 Ring) message to inform the L2 switch that the ring is a ring, the L2 switch, A fourth step of transmitting the ALERT (180 Ring) message to the IP server module A;
When the IP server module A transmits an ALERT message to the call processing module A to inform that the subscriber C is busy in a ring, the call processing module A transmits an RBT to the first analog terminal. A fifth step of requesting a ring back tone;
When the subscriber C picks up the handset (Hook off), the wired IP phone sends a response signal (200 OK) message to the L2 switch, the L2 switch, the received response signal 200 Transmitting an IP message to the IP server module A;
A seventh step in which the IP processing module A responds with a CONNECT ACK when the IP server module A transmits a Commit message to the call processing module A and notifies that the subscriber C has heard the receiver. ;
When the subscriber B of the second analog terminal picks up the handset and picks up the call, the second analog terminal transmits a hook off to the call processing module A. An eighth step in which group members of the group to which the group belongs receive a call and perform a group call using a call mixer;
When the call is over and the handset is put down by the subscriber A, the call processing module A transmits a BT (Busy Tone) to the subscriber B of the analog terminal, A ninth step of sending a release message to the IP server module A to notify subscriber C that the group call has ended;
When the IP server module A transmits a BYE message to the L2 switch, the L2 switch 15 transmits the received BYE message to the subscriber C of the wired IP phone. A tenth step of outputting BT (Busy Tone) to the subscriber C of the wired IP phone receiving the BYE message, indicating that the group call has ended;
When the wired IP phone sends a call release complete (200 OK) message to the L2 switch for the BYE message, the L2 switch sends the received call release complete (200 OK) message to the IP server module A. An eleventh step of transmitting; And
Step 12, wherein the IP server module A sends a release complete message to the call processing module to end a group call of a group to which the subscriber A belongs; Group call control method using a wired and wireless integrated communication system through a small power dedicated wireless terminal comprising a.
The method of claim 1,
Group call control of the wired / wireless integrated communication system is a wired / wireless wireless terminal using a low power dedicated wireless terminal, characterized in that a simultaneous call can be made to a group of up to 10 persons in a group using a call processing module and a call mixer. Group call control method using integrated communication system.

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