JP4977427B2 - Terminal device, relay device, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve convenience when performing PTT using a mobile communication terminal etc. <P>SOLUTION: In each mobile communication terminal 100 starting PTT, users related to PTT communication control are arbitrarily set, and a request for starting PTT is transmitted to a relay unit 200 together with control information indicative of the set contents. The relay unit 200 originates a call to the mobile communication terminal 100 which is to be a requested connection target, and transfers the control information to the mobile communication terminal 100 responded thereto. The transferred control information is stored in each mobile communication terminal 100 of the connection target. When PTT is established among a plurality of mobile communication terminals 100 by the relay of the relay unit 200, each mobile communication terminal 100 performs PTT communication operation according to a voice transmission time etc. specified in the obtained control information. The control information is also retained in the relay unit 200, and based on the control information, the relay unit 200 performs control of communication completion operation based on a silent time, etc. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a terminal device, a relay device, and a program, and more particularly, to a terminal device, a relay device, and a program that are suitable for half-duplex voice communication in a mobile communication terminal.

  In the field of voice calls, techniques for performing voice calls by packet exchange using digital voice data (for example, IP telephones using VoIP (Voice over Internet Protocol)) have been established. The IP telephone technology is being applied to mobile communication terminals such as mobile phones.

  In such a mobile communication terminal, a service (so-called PTT (Push To Talk) or PoC (Push-to-Talk)) that can make a call between three or more terminals by half-duplex communication using packet switching. to-Talk over Cellular)) has been put into practical use. Since such PTT is half-duplex communication, like a transceiver, voice can be sent only while a predetermined button on the terminal is pressed, but it can be broadcast to two or more partners, etc. Since it has characteristics that are not found in normal mobile communication, it is used for contact within a group of a plurality of people, for example.

  When such a PTT is used, a call operation is performed by designating a participating member of the PTT call, and the called participating member performs a call while pressing a call button provided in each terminal. In general PTT, according to the specification, the transmission time (voice transmission time) when the call button is pressed is defined as 30 seconds at maximum. In addition, when there is a silence period of 30 seconds during which no participating member presses the call button, the call is automatically terminated (silence end).

  Thus, although the upper limit of the transmission possible time is prescribed, since it is one terminal that can transmit the voice among the plurality of participating terminals, when the call button is pressed until the set upper limit time, Other members cannot transmit, and the efficiency of the call may decrease at the upper limit time as specified. Therefore, it is considered that a more efficient call can be realized if the user side can set a limit based on such specifications within the range up to the upper limit. However, in the conventional PTT, these calls can be made prior to the call. I couldn't set it.

In the field of transceivers that use the same half-duplex communication, it is possible to perform time measurements such as ski competitions with a simple operation by controlling the start / end of the other time measurement between two transmitter / receiver devices. Although a technique that can be performed has been proposed (for example, Patent Document 1), it is not possible to set a voice transmission time, a silent end time, or the like prior to connection.
JP 07-283754 A

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a terminal device, a relay device, and a program capable of setting a call condition before connection.

In order to achieve the above object, a terminal device according to the first aspect of the present invention provides:
In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means ,
The control information includes information indicating whether recording of voice received by half-duplex communication is permitted,
The communication control means controls a recording operation at the time of executing the half-duplex communication based on recording permission / inhibition indicated by the control information.
And wherein a call.

In order to achieve the above object, a terminal device according to the second aspect of the present invention provides:
In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means,
The control information includes information indicating a recordable time of voice received by half-duplex communication,
The communication control means controls the recording operation so that the recording time during the half-duplex communication becomes a recordable time indicated by the control information.
It is characterized by that.

In order to achieve the above object, a terminal device according to the third aspect of the present invention provides:
In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means,
The control information includes information for specifying a silent end time during half-duplex communication.
It is characterized by that.

In order to achieve the above object, a terminal device according to the fourth aspect of the present invention provides:
In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means;
Control information updating means for updating the control information stored in the control information storage means to a default value when execution of control based on the control information is rejected by a user,
The communication control means controls the half-duplex communication based on the control information updated by the control information update means;
It is characterized by that.

In the above terminal device,
The control information can include information for designating a voice transmission time during half-duplex communication.
The communication control means preferably controls the voice transmission operation so that the voice transmission time during the half-duplex communication is equal to the voice transmission time indicated by the control information .

The terminal device can be a mobile communication terminal .

In order to achieve the above object, a relay device according to the fifth aspect of the present invention provides:
A relay device that relays half-duplex communication by exchanging packets between two or more terminal devices,
Connection information storage means for storing connection information of each of the terminal devices;
Control information receiving means for receiving information indicating a connection destination and control information for controlling a communication operation at the connection destination from the terminal device that has transmitted the half-duplex communication start request;
Control information storage means for storing control information received by the control information receiving means;
Based on the connection information stored in the connection information storage means, a relay means for establishing half-duplex communication between the terminal device that has transmitted the start request and a connection destination terminal device;
Control information transmitting means for transmitting the control information received by the control information receiving means to the terminal device of the connection destination;
Communication control means for controlling half-duplex communication established by the relay means based on the control information stored in the control information storage means ,
The control information includes information for specifying a silent end time during half-duplex communication,
The communication control means controls to end the half-duplex communication when the silent time during the half-duplex communication is the silent end time indicated by the control information;
And wherein a call.

In order to achieve the above object, a program according to the sixth aspect of the present invention is:
In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling the communication operation set by the user together with the transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
When the control information includes information indicating whether recording of voice received by half-duplex communication is permitted or not, based on the recording permission / inhibition indicated by the control information, a function for controlling the recording operation when the half-duplex communication is performed;
It is characterized by realizing.

In order to achieve the above object, a program according to the seventh aspect of the present invention is:
In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling the communication operation set by the user together with the transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
When the control information includes information indicating the recordable time of the voice received by half-duplex communication, the recording operation is controlled so that the recording time at the half-duplex communication becomes the recordable time indicated by the control information. Function to
It is characterized by realizing.

In order to achieve the above object, a program according to the eighth aspect of the present invention is:
In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling a communication operation set by a user, including information specifying a silent end time during half-duplex communication along with transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
It is characterized by realizing.

In order to achieve the above object, a program according to the ninth aspect of the present invention is:
In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling the communication operation set by the user together with the transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
A function of updating the control information stored in the storage device to a default value when execution of control based on the control information is rejected by a user;
A function of controlling the half-duplex communication based on the updated control information;
It is characterized by realizing.

In order to achieve the above object, a program according to a tenth aspect of the present invention is:
On the computer,
A function of storing connection information of each of two or more terminal devices that perform half-duplex communication by packet switching in a storage device;
From the terminal device that sent the half-duplex communication start request, information indicating the connection destination and information specifying the silent end time during half-duplex communication for controlling the communication operation at the connection destination were included. A function of receiving control information;
A function of storing received control information in a storage device;
Based on connection information stored in the storage device, a function of establishing half-duplex communication between a terminal device that has transmitted the start request and a terminal device that is a connection destination;
A function of transmitting the received control information to the terminal device of the connection destination;
A function for controlling to terminate the half-duplex communication based on the control information stored in the storage device when the silent time during the half-duplex communication is the silent end time indicated by the control information When,
It is characterized by realizing.

  ADVANTAGE OF THE INVENTION According to this invention, control based on a user's setting can be performed in the half-duplex voice call with a mobile communication terminal etc.

  Embodiments according to the present invention will be described below with reference to the drawings. In the present embodiment, a voice call in so-called half duplex communication using packet switching (so-called PTT (Push To Talk) or PoC (Push-to-Talk over Cellular)). A case where PTT communication is performed by a plurality of mobile communication terminals (terminal devices) capable of performing “PTT”) will be described.

  In this case, PTT communication is realized by the PTT system 1 as shown in FIG. As shown in the figure, the PTT system 1 according to the present embodiment, a plurality of mobile communication terminals 100, a relay device 200, and the like are configured.

  Here, the mobile communication terminal 100 according to the present embodiment is a mobile communication terminal capable of performing data communication at a relatively high speed, such as a so-called third-generation mobile phone (3G) or later mobile phone, such as a packet communication network. It is assumed that data communication is performed by a packet switching method via the communication network NW. The connection between the mobile communication terminal 100 and the communication network NW is performed via the base station BS of the communication carrier, and wireless communication is performed between the mobile communication terminal 100 and the base station BS.

  The relay device 200 is connected to a plurality of mobile communication terminals 100 via a communication network NW, and interconnects these mobile communication terminals 100 when performing PTT communication between the plurality of mobile communication terminals 100. Therefore, the relay device 200 is a device operated by a communication carrier that provides a communication service including PTT communication to the mobile communication terminal 100, for example. In the present embodiment, it is assumed that PTT communication is performed using a method of transmitting and receiving voice data by packet exchange such as VoIP (Voice over Internet Protocol) or SIP (Session Initiation Protocol). The relay apparatus 200 that relays such PTT communication performs call control of the mobile communication terminal 100 that performs PTT by functioning as a so-called SIP server.

  Detailed configurations of the mobile communication terminal 100 and the relay device 200 will be described below. First, the configuration of the mobile communication terminal 100 will be described with reference to FIG.

  FIG. 2 is a block diagram showing the configuration of the mobile communication terminal 100. As illustrated, the mobile communication terminal 100 includes a control unit 110, a communication control unit 120, an operation unit 130, a display unit 140, a voice processing unit 150, a storage unit 160, and the like.

  The control unit 110 includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like, and controls each unit of the mobile communication terminal 100. In this embodiment, the function for performing each process mentioned later is implement | achieved because the control part 110 runs a program.

  The communication control unit 120 includes a transmission / reception device for performing communication operation of the mobile communication terminal 100, and performs wireless connection with the base station BS by controlling the wireless transmission / reception operation by the antenna 121, so that the communication network NW The communication operation via is realized.

  The operation unit 130 includes, for example, predetermined keys and buttons operated by the user of the mobile communication terminal 100 and inputs an input signal corresponding to the operation to the control unit 110.

  The display unit 140 includes, for example, a liquid crystal display device, and displays and outputs screens related to the functions of the mobile communication terminal 100.

  The voice processing unit 150 is composed of, for example, a voice codec and performs voice input / output operations related to the voice call function of the mobile communication terminal 100. That is, the digital audio signal received by the communication control unit 120 is converted into an analog audio signal and output from the speaker 151, and the audio input from the microphone 152 is converted into a digital audio signal and provided to the communication control unit 120. Thus, a voice call (including PTT) is realized. In the present embodiment, it is assumed that voice recording during a PTT call is performed by the voice processing unit 150. In this case, voice recording is realized by the voice processing unit 150 storing the digital voice data received by the communication control unit 120 in the storage unit 160.

  The storage unit 160 includes, for example, a semiconductor storage device (ROM (Read Only Memory), flash memory, etc.), a hard disk device, and the like, and stores data and programs necessary for the operation of the mobile communication terminal 100. In this embodiment, storage areas such as a program storage unit 161, a connection destination information storage unit 162, a control information storage unit 163, and a recording data storage unit 164 are prepared, and predetermined information is stored in each storage area. .

  The program storage unit 161 is an area for storing a program executed by the control unit 110. In the present embodiment, a program and the like for realizing each process necessary for performing a PTT call is stored.

  The connection destination information storage unit 162 stores connection destination information necessary when connecting to another mobile communication terminal 100 that is a partner with which a PTT call is made. In the present embodiment, connection destination information is recorded as information for designating a partner to be called when PTT communication is started from the mobile communication terminal 100. This connection destination information is so-called address book data, and information (name and the like) indicating a person who is a call partner, and address information (telephone number and IP address) of the mobile communication terminal 100 used by the person. Is included. Such connection destination information can be registered as a group.

  The control information storage unit 163 stores control information for controlling the PTT communication operation. This control information is transmitted from the mobile communication terminal 100 that has requested the start of PTT communication. Accordingly, control information received when the mobile communication terminal 100 is called from another mobile communication terminal 100 by PTT communication is stored in the control information storage unit 163.

  The recording data storage unit 164 stores digital data indicating the sound to be recorded when recording the sound transmitted / received by the PTT communication.

  Here, the function realized by the control unit 110 executing the program stored in the program storage unit 161 will be described with reference to FIG. As illustrated, the control unit 110 functions as a PTT transmission processing unit 111, a PTT incoming processing unit 112, a PTT communication execution unit 113, a PTT operation control unit 114, and the like.

  The PTT transmission processing unit 111 executes an operation when transmitting PTT communication from the mobile communication terminal 100. In this case, according to the input signal from the operation unit 130, the display at the time of PTT transmission is displayed on the display unit 140, and the connection stored in the connection destination information storage unit 162 is controlled by controlling the communication control unit 120. A request to start PTT communication with the connection destination selected from the destination information is transmitted. In addition, the user is allowed to designate operation control of PTT communication to be started, and control information indicating the designated content is transmitted together with the start request.

  The PTT incoming processing unit 112 executes an operation when the mobile communication terminal 100 receives a PTT communication. In this case, when the communication control unit 120 receives a PTT start request transmitted from another mobile communication terminal 100, and the control information is transmitted together with the start request, the received control information is It is stored in the control information storage unit 163.

  When the connection according to the start request transmitted by the PTT call processing unit 111 is established and when the connection is established by the incoming call by the PTT call processing unit 112, the PTT communication execution unit 113 By controlling unit 150, a voice call with another connected mobile communication terminal 100 is executed. When voice is transmitted from the mobile communication terminal 100, voice data is transmitted while a button set as a call button among the buttons constituting the operation unit 130 is being pressed.

  The PTT operation control unit 114 is based on control information set when the PTT transmission processing unit 111 transmits a PTT start request, or control information from another mobile communication terminal 100 received by the PTT incoming processing unit 112. Thus, the operation of the PTT communication execution unit 113 is controlled. The PTT communication execution unit 113 controls the voice transmission time, the recording operation, the recording time, the silence end operation, and the like by referring to the control information stored in the control information storage unit 163.

  In the present embodiment, each function shown in FIG. 3 is realized by the control unit 110 executing a program. For example, hardware such as an ASIC (Application Specific Integrated Circuit) These functions may be realized by the configuration.

  The above configuration is a configuration necessary for realizing the present invention, and other configurations necessary for basic functions and additional functions as a mobile communication terminal are provided as necessary. To do.

  Next, the configuration of the relay apparatus 200 will be described with reference to FIG. FIG. 4 is a block diagram showing a configuration of relay apparatus 200. As illustrated, the relay device 200 includes a control unit 210, a communication control unit 220, an input unit 230, an output unit 240, a storage unit 250, and the like.

  The control unit 210 includes, for example, a CPU and a RAM, and controls each unit of the relay device 200. In the present embodiment, each function for performing each process described later is realized by the control unit 210 executing the program.

  The communication control unit 220 includes, for example, a communication device such as a router or a NIC (Network Interface Card), and performs operations necessary for communication via the communication network NW.

  The input unit 230 includes, for example, an input device such as a keyboard or a pointing device, and inputs an input signal corresponding to an operator's operation to the control unit 210.

  The output unit 240 is composed of an output device such as a display device or a printer, for example, and outputs the processing result of the control unit 210 and the like.

  The storage unit 250 is configured by a storage device such as a hard disk device, for example, and stores data, programs, and the like necessary for the operation of the relay device 200. In the present embodiment, storage areas such as a program storage unit 251, a subscriber information storage unit 252, a connection request storage unit 253, and a PTT information storage unit 254 are prepared, and predetermined information is stored in each storage area. .

  The program storage unit 251 stores a program executed by the control unit 210. In this embodiment, a program for realizing an operation necessary for relaying PTT communication between a plurality of mobile communication terminals 100 is stored.

  The subscriber information storage unit 252 stores information about the subscriber of the PTT call service using the mobile communication terminal 100. In this subscriber information, at least address information (telephone number, IP address, etc.) of the mobile communication terminal 100 that performs PTT by the PTT system 1, that is, connection information of each mobile communication terminal 100 is recorded. In addition, location information obtained by the location registration operation by each mobile communication terminal 100 is also recorded.

  The connection request storage unit 253 temporarily stores information transmitted when the mobile communication terminal 100 requests PTT start. Here, the address information (telephone number, IP address, etc.) of the mobile communication terminal 100 that is the communication partner is stored, and if the control information is transmitted from the mobile communication terminal 100, the received control information Are also stored.

  The PTT information storage unit 254 stores information for relaying a PTT call established by the operation of the relay apparatus 200 (hereinafter referred to as “PTT information”). Here, in addition to the address information of the mobile communication terminals 100 participating in the established PTT communication, control information transmitted from the mobile communication terminal 100 that has requested the start of PTT, and mobile communication that can currently send voices. Information indicating the terminal 100 (speaking right), information indicating the voice transmission time at the mobile communication terminal 100 having the right to speak, information indicating the elapsed time of the silent state in the PTT, and the like are recorded. The

  Here, a function realized when the control unit 210 executes a program stored in the program storage unit 251 will be described with reference to FIG. Here, functions necessary for relaying the PTT communication of the mobile communication terminal 100 will be described. As illustrated, the control unit 210 functions as a call control unit 211, a control information transfer unit 212, a PTT relay unit 213, and the like.

  The call control unit 211 is a functional configuration for operating as, for example, a SIP server in cooperation with the communication control unit 220, the storage unit 250, and the like. In response to a connection request from a PTT call source, a subscriber Call control based on subscriber information stored in the information storage unit 252 is performed. In this case, for example, the connection between the requesting mobile communication terminal 100 and the other mobile communication terminal 100 as the connection destination is established by performing a procedure based on SIP or the like.

  The control information transfer unit 212 cooperates with the communication control unit 220, the storage unit 250, and the like to transmit the control information transmitted from the requesting mobile communication terminal 100 to another mobile communication terminal 100 with which connection has been established. Forward to. Thereby, common communication control is performed by the plurality of connected mobile communication terminals 100.

  The PTT relay unit 213 relays the PTT on the connection established by the call control unit 211. In this case, for the established PTT communication, PTT information indicating setting contents based on terminal address information and control information is created and stored in the PTT information storage unit 254. Further, based on a signal transmitted from each mobile communication terminal 100, the right to speak is managed.

  In the present embodiment, the functions shown in FIG. 5 are realized by the control unit 210 executing the program. However, these functions may be realized by a hardware configuration such as an ASIC, for example.

  The operation of the PTT system 1 configured as described above will be described below with reference to the drawings. In this embodiment, the case where a PTT call is performed with four mobile communication terminals 100 is taken as an example, and the mobile communication terminal 100 that is the source of the PTT call is transmitted from the mobile communication terminal 100A and the mobile communication terminal 100A. Accordingly, the mobile communication terminals 100 participating in the PTT call are referred to as a mobile communication terminal 100B, a mobile communication terminal 100C, and a mobile communication terminal 100D, respectively. The configuration of each mobile communication terminal 100 is the same.

  In this case, the “PTT start request process” executed in the mobile communication terminal 100A will be described with reference to the flowchart shown in FIG. This PTT start request process is started when the user of the mobile communication terminal 100A operates the operation unit 130 to instruct the start of the PTT call.

  In this case, an input signal corresponding to a user operation instructing the start of the PTT call is input to the control unit 110, and the PTT call processing unit 111 is activated. First, the “PTT setting screen for allowing the user to input the PTT call setting” Is displayed on the display unit 140 (step S101). This PTT setting sets communication control that is commonly executed by each mobile communication terminal 100 before connection of a PTT call. In this embodiment, a time during which voice transmission can be performed by pressing a call button (voice transmission) Time), silence time for automatically terminating the call (silence end time), automatic recording permission / inhibition of call voice, automatic recording time, and the like are set.

  Here, the maximum values of the voice transmission time and the silence end time are based on the specifications of the PTT call, and are set to, for example, 30 seconds. Therefore, the voice transmission time and the silence end time can be set by the user as numerical values within 30 seconds. Here, in addition to being able to input and set an arbitrary numerical value, for example, it may be selected from a plurality of specified values such as 30 seconds, 20 seconds, 10 seconds, and the like. In this case, as shown in FIG. 7A, these options are displayed in a selectable manner on the PTT setting screen. Similarly, regarding whether or not automatic recording can be performed, either “permitted” or “prohibited” is displayed, and an option is also displayed for that time.

  The user of the mobile communication terminal 100A operates the operation unit 130, selects a desired setting value, etc., and performs an operation (such as operation of an “OK” button) indicating confirmation of selection. When an input signal corresponding to this operation is input to the control unit 110 and the setting input is determined by the PTT transmission processing unit 111 (step S102: Yes), the PTT transmission processing unit 111 displays the input setting content. The indicated information is stored as control information in the control information storage unit 163 (step S103).

  In addition, when the setting by a user is not made (step S102: No), it shall be default. In this case, control information indicating a default value can be stored in the control information storage unit 163, and control information may not be generated.

  Next, the PTT call processing unit 111 displays a connection destination selection screen for allowing the user to select a connection destination of the PTT call on the display unit 140 (step S104). Here, it is assumed that the connection destination is set in units of groups. First, a “group selection screen” as shown in FIG. 7B is displayed on the display unit 140. Each group is assumed to be set in advance by the user, and the user operates the operation unit 130 to select a desired group.

  Here, in the connection destination information stored in the connection destination information storage unit 162, for example, as shown in FIG. 8, a group to which each connection destination belongs is recorded. The connection destination information belonging to the selected group is extracted from the connection destination information storage unit 162. Next, the PTT transmission processing unit 111 displays a “member selection screen” on the display unit 140 for allowing the user to select a desired connection destination from the members of the group thus extracted. Here, as shown in FIG. 7C, the names of the extracted members are displayed so as to be selectable, and the user operates the operation unit 130 to select a member who wants to make a PTT call.

  Based on the input signal input in response to such an operation, the PTT transmission processing unit 111 identifies the connection destination (step S105). When the connection destination is specified, the PTT call processing unit 111 acquires address information (telephone number, IP address, etc.) about the specified connection destination from the connection destination information storage unit 162, and stores control information in step S103. The control information stored in the unit 163 is acquired.

  The PTT transmission processing unit 111 controls the communication control unit 120 to transmit the acquired connection destination address information and control information, its own address information (hereinafter referred to as “connection request information”) to the relay apparatus 200. Thus, the relay apparatus 200 is requested to start (connect) the PTT call (step S106). When the connection request information is transmitted, the PTT transmission processing unit 111 deletes the control information stored in the control information storage unit 163 and ends the process. In addition, when the setting is not made by the user and defaults, the control information is not transmitted and the process is terminated.

  As a result of such processing, control information set by the user of the mobile communication terminal 100A is transmitted to the relay device 200 from the mobile communication terminal 100A that requests connection of the PTT call in addition to the normal connection destination information.

  The “PTT establishment process” executed by the relay apparatus 200 that has received such connection request information will be described with reference to the flowchart shown in FIG. This PTT establishment process is started when the communication control unit 220 receives the connection request information transmitted from the mobile communication terminal 100A.

  When the process is started, connection request information received by the communication control unit 220 is input to the call control unit 211. The call control unit 211 stores the received connection request information in the connection request storage unit 253 (step S201).

  Next, the call control unit 211 accesses the subscriber information storage unit 252 and searches the record in which the connection destination address information included in the received connection start request information is recorded, thereby requesting the requested PTT. The connection destination of the call is specified (step S202).

  When the connection destination is specified, the call control unit 211 controls the communication control unit 220, and the mobile communication terminal 100 (that is, the mobile communication terminal 100B, the mobile communication terminal 100C, the mobile communication terminal) that is the specified connection destination. 100D), a call for PTT is made (step S203).

  Here, when each mobile communication terminal 100 of the connection destination is currently capable of PTT communication, and the user of each terminal performs an operation of responding to the PTT call, a response signal is received from the mobile communication terminal 100. It is returned to the relay device 200 and received by the communication control unit 220. The call control unit 211 connects the mobile communication terminal 100 that has returned such a response signal and the mobile communication terminal 100A that is the start request source based on a protocol (SIP or the like) used for PTT (step S204). .

  Here, when response signals cannot be obtained from all the connection destination terminals that have made calls (step S205: No), the call control unit 211 times out after the elapse of a predetermined time (step S206: Yes), and even one unit responds. If there is (step S207: Yes), the PTT communication between the mobile communication terminal 100 that responded and the requesting mobile communication terminal 100A is established. When there is a response from all the connection destination terminals (step S205: Yes), PTT communication is established between each of the responding mobile communication terminals 100 and the requesting mobile communication terminal 100A. In this case, the call control unit 211 notifies the control information transfer unit 212 that the PTT communication has been established and the address information of the mobile communication terminal 100 with which the connection has been established.

  The control information transfer unit 212 accesses the connection request storage unit 253 in response to the notification from the call control unit 211, and if the control information is included in the connection request information transmitted from the mobile communication terminal 100A, the PTT communication Is transferred to the connected mobile communication terminal 100 (step S208). In this case, an establishment notification signal for notifying that the PTT connection has been established is transmitted to each connected mobile communication terminal 100 to notify the user of each terminal that the PTT call can be started.

  If there is no response from any of the mobile communication terminals 100 designated as connection destinations (step S207: No), PTT cannot be performed, and the process ends.

  When the control information is transferred to each connection destination terminal, the control information transfer unit 212 notifies the PTT relay unit 213 to that effect. In response to the notification from the control information transfer unit 212, the PTT relay unit 213 activates a “PTT relay process” for relaying a call in the established PTT communication (step S209), and ends the PTT establishment process. The PTT relay process started in this PTT establishment process will be described with reference to the flowchart shown in FIG. When there is no control information for default setting, the control information transfer unit 212 notifies the PTT relay unit 213 to that effect, and the PTT relay process is executed in response to this notification.

  When the process is started, the PTT relay unit 213 is established based on the connection request information and control information transmitted from the mobile communication terminal 100A and the response signal transmitted from the mobile communication terminal 100 that has responded. PTT information about the PTT is generated and stored in the PTT information storage unit 254 (step S301).

  As for this PTT information, for example, as shown in FIG. 11A, a record indicating a participating member is created based on the address information of the mobile communication terminal 100 participating in the established PTT, and the restriction based on the control information. Information indicating time and the like is recorded for each record of participating members. In this example, in the control information from the mobile communication terminal 100A, a voice transmission time “20 seconds”, a silence end time “20 seconds”, automatic recording permission / inhibition “permission”, and a recording time “10 seconds” are set. It shall be.

  Here, in the present embodiment, it is assumed that the mobile communication terminal 100 at the connection destination can refuse to accept the control information. In this case, information indicating that the control information is rejected (hereinafter referred to as “control reject information”) is transmitted from the mobile communication terminal 100 to the relay apparatus 200. When such control rejection information is received (step S302: Yes), the PTT relay unit 213 updates the PTT information for the mobile communication terminal 100 (step S303).

  In this case, the setting content for the mobile communication terminal 100 is set as a default value regardless of the content of the control information. The default values in this example are a voice transmission time “30 seconds”, a silence end time “30 seconds”, automatic recording permission / inhibition “prohibition”, and a recording time “no”. As for the silent end time that cannot be individually limited for each mobile communication terminal 100, if there is at least one terminal that rejects acceptance of control information (hereinafter referred to as "control reject terminal"), Assume that default values are set for the terminal. An example of the restriction information updated in this way is shown in FIG. Here, a case is shown in which the mobile communication terminal 100D is permitted to accept the control information. Therefore, the record for mobile communication terminal 100D is updated to the default value, and only the silent end time is updated to the default value for mobile communication terminal 100A to mobile communication terminal 100C.

  If there is such a control-refusal terminal and it is necessary to change the setting contents in all the terminals, a terminal other than the control-refusal terminal among the mobile communication terminals 100 in which the PTT connection is established is connected to the relay apparatus 200. It shall be notified to that effect. In this case, the control information transfer unit 212 generates change control information indicating the changed setting contents, and transmits the change control information to the corresponding mobile communication terminal 100. Further, when the control rejection information is not received from the mobile communication terminal 100 (step S302: No), the PTT information is not updated. In this case, change control information is not generated.

  Thereafter, the PTT relay unit 213 relays the PTT call according to such setting contents. Here, the PTT relay unit 213 measures the silent time by measuring the elapsed time from the time when the PTT connection is established, for example, by a time measuring function such as a timer circuit of the control unit 210 (step S304). .

  Here, in the PTT, when the operation unit 130 corresponding to the call button is operated (pressed) in each mobile communication terminal 100, a signal indicating this (hereinafter referred to as “call signal”) is transmitted to the relay device 200. Sent to. When the PTT relay unit 213 receives the call signal (step S305: Yes), the PTT relay unit 213 stops the silence time measurement performed in step S304 (step S306), and permits the voice communication from the mobile communication terminal 100, As shown in FIG. 11B, by recording information indicating the right to speak (hereinafter referred to as “speaking right mark”) in a record indicating the corresponding mobile communication terminal 100, mobile communication having the right to speak. The terminal 100 is specified (step S307).

  When the PTT relay unit 213 records the floor mark, the PTT relay unit 213 transmits the voice data transmitted together with the call signal from the mobile communication terminal 100 having the floor to the other, for example, in an operation based on VoIP or the like. Relay to each mobile communication terminal 100 (step S308). It is assumed that the PTT relay unit 213 transmits a speaking right notification signal indicating that there is a speaking right to the mobile communication terminal 100 in which the speaking right mark is recorded. Further, it is assumed that a non-speaking right signal indicating that there is no speaking right is transmitted to the call signal from the mobile communication terminal 100 in which the speaking right mark is not recorded.

  Here, when the user of the mobile communication terminal 100 having the right to speak finishes the transmission, the pressing of the call button also ends, and the call signal is not transmitted. In addition, when the voice transmission time set as the control information or default has elapsed, the mobile communication terminal 100 automatically stops the transmission of the call signal. In such a case (step S309: Yes), the process returns to step S304 to start measuring the silent time again. Here, if a call signal is received from any one of the mobile communication terminals 100, voice transmission from the mobile communication terminal 100 is performed by the above-described operation (step S305: Yes). The PTT call is performed with the mobile communication terminal 100 that has been stopped and has issued a call signal as a terminal having the right to speak (steps S307 and S308). On the other hand, when no call signal is issued from any of the mobile communication terminals 100 (step S305: No) and the elapsed time has reached the set silence end time (step S310: Yes), the PTT relay unit 213 Notifies the call control unit 211 to that effect. The call control unit 211 terminates the PTT connection by call control (step S311) and ends the process. If a call signal is received from any of the mobile communication terminals 100 before the silence end time is reached (step S310: No, step S305: Yes), a PTT call with the right to speak is made at that terminal. Become.

  By such processing, based on the control information set in the requesting mobile communication terminal 100, the PTT call is relayed under the common communication control except for the terminal that refuses to accept the control information.

  Next, the operation of mobile communication terminal 100 (that is, mobile communication terminal 100A to mobile communication terminal 100D) that has received a connection request from mobile communication terminal 100A relayed by relay device 200 will be described. Here, “PTT response processing” executed by mobile communication terminal 100 that has received a call from relay device 200 will be described with reference to the flowchart shown in FIG. This PTT response process is started when the communication control unit 120 of the mobile communication terminal 100 receives a call from the relay device 200.

  When the process is started, the PTT incoming processing unit 112 is activated and displays a “PTT incoming screen” indicating that the PTT has been received on the display unit 140 (step S401). On this PTT incoming screen, a message indicating that a request for a PTT call has been received from another mobile communication terminal 100 is displayed.

  Here, when there is no willingness to respond to the user or when the mobile communication terminal 100 cannot be operated, the response operation is not performed (step S402: No). In this case, if the response operation is not performed even after a predetermined time has elapsed (step S403: Yes), the PTT incoming call processing unit 112 ends the process as it is. In this case, the response signal is not transmitted to the relay apparatus 200.

  On the other hand, the user of the mobile communication terminal 100 operates the operation unit 130 functioning as a predetermined call key or the like when participating in the PTT. When an input signal corresponding to this operation is input from the operation unit 130 to the PTT incoming processing unit 112 (step S402: Yes), the PTT incoming processing unit 112 generates a response signal indicating that it responds to the PTT call. And it transmits to the relay apparatus 200 by controlling the communication control part 120 (step S404).

  In this case, when the PTT connection is established, an establishment notification signal is transmitted from the relay device 200. When the communication control unit 120 receives this establishment notification signal, the PTT incoming call processing unit 112 notifies the PTT communication execution unit 113 to that effect. In response to this notification, the PTT communication execution unit 113 controls the communication control unit 120 and the voice processing unit 150 that are required during the PTT call, thereby enabling a call using PTT (step S405).

  Here, if there is control information from the requesting mobile communication terminal 100, it is transferred by the relay device 200. When the communication control unit 120 receives such control information (step S406: Yes), the control information is input to the PTT incoming processing unit 112. In this case, the PTT incoming processing unit 112 stores the received control information in the control information storage unit 163 (step S407), indicates the setting contents of the control information, and determines whether or not the user agrees to accept the control information. A “control confirmation screen” for inquiring is displayed on the display unit 140 (step S408).

  On this control confirmation screen, a message indicating that a communication control setting different from the default is presented from the requesting mobile communication terminal 100 is displayed, and the setting contents are displayed. Buttons for selecting whether or not (for example, “permit” button or “reject” button) are displayed. The user refers to the setting content and performs a selection operation based on the determination as to whether or not to accept the PTT in the setting.

  When it is determined that the user rejects the PTT with the setting indicated in the control information based on the input signal from the operation unit 130 (step S409: Yes), the PTT incoming processing unit 112 displays a control rejection indicating that the control information is rejected. Information is generated and transmitted to the relay device 200 (step S410).

  In this case, the PTT incoming processing unit 112 updates the control information stored in the control information storage unit 163 in step S407 to one indicating a default value (step S411).

  On the other hand, when it is determined that the user accepts the control information (step S409: No), the PTT incoming processing unit 112 does not update the control information. In this case, when another mobile communication terminal 100 refuses to accept the control information, the change control information is transmitted from the relay device 200. When the communication control unit 120 receives the change control information (step S412: Yes), the PTT incoming processing unit 112 updates the control information stored in step S407 to the received change control information (step S413).

  The PTT incoming processing unit 112 instructs the PTT operation control unit 114 to control the PTT operation based on the control information stored in step S407, the control information updated in step S411, or the control information updated in step S413. To do. If no control information has been received (step S406: No), the default settings are used, and thus the processing of steps S407 to S413 is not performed.

  This process is an operation at the mobile communication terminal 100 designated as the connection destination. Among the above processes, the same operation corresponding to step S405, step S412, and step S413 is performed at the PTT request source. It is assumed to be executed also in a certain mobile communication terminal 100A. In other words, when the establishment notification signal is received from the relay device 200, the PTT transmission processing unit 111 notifies the PTT communication execution unit 113 of the fact to make it possible to perform PTT, and in step S103 (FIG. 6), the control information The PTT operation control unit 114 is instructed to control the PTT operation based on the control information stored in the storage unit 163. When the change control information is received due to the presence of the control refusal terminal, the PTT operation control unit 114 is instructed to control the PTT operation based on the change control information.

  In this case, “PTT call processing” is activated in all the mobile communication terminals 100 that have established connections (step S414), and the PTT response processing is terminated. The PTT call process started in the PTT response process will be described with reference to the flowchart shown in FIG.

  Here, since the PTT communication is possible by the PTT communication execution unit 113, communication is performed when the voice data transmitted from another mobile communication terminal 100 is relayed by the relay device 200 (step S501: Yes). The control unit 120 receives the audio data and inputs it to the PTT communication execution unit 113. In this case, the PTT communication execution unit 113 notifies the PTT operation control unit 114 that the audio data has been received.

  In response to this notification, the PTT operation control unit 114 refers to the control information in the control information storage unit 163 and determines whether or not the setting related to the received voice has been made (step S502). When there is a setting related to the received voice (step S502: Yes), the PTT operation control unit 114 controls each related unit so that the operation of the set content is performed (step S503). In the setting contents exemplified in this embodiment, the setting relating to recording is a setting related to the received voice. For example, when the permission of automatic recording is indicated in the control information, automatic recording for the set recording time is performed by controlling the PTT communication execution unit 113 and the voice processing unit 150.

  In addition, when a user who desires to send a message presses a call button to be pressed at the time of sending, a corresponding input signal is input from the operation unit 130 to the PTT communication execution unit 113. If it is determined that the transmission operation has been performed based on this input signal (step S504: Yes), the PTT communication execution unit 113 transmits a call signal corresponding to the call button pressing operation to the relay device 200 (step S505). .

  When the floor is acquired based on the call signal, the floor notification signal is transmitted from the relay device 200. When the PTT communication execution unit 113 receives the floor-right notification signal (step S506: Yes), the PTT communication execution unit 113 controls the voice processing unit 150 and the communication control unit 120, and the microphone 152 collects sound while the call button is pressed. The voice is transmitted by converting the voice to be converted into digital voice data (packet data) and transmitting it to the relay apparatus 200 (step S507).

  In this case, the PTT operation control unit 114 measures an elapsed time from the time when the right-to-speak notification signal is received, for example, by a timing operation by a timer circuit of the control unit 110 or the like. In this case, the PTT operation control unit 114 refers to the control information stored in the control information storage unit 163, and determines whether or not the elapsed time being measured has reached the time set for the voice transmission time. (Step S508).

  When the elapsed time of voice transmission reaches the set time (step S508: Yes), the PTT operation control unit 114 is related to the voice transmission (PTT communication execution unit 113, communication control unit 120, voice processing unit 150, etc.). And the voice transmission operation is stopped (step S509). That is, voice transmission can be performed only for the set voice transmission time, and when this is exceeded, voice transmission is automatically stopped.

  In this case, since the call signal sent to the relay device 200 is stopped in response to the press of the call button, the right to speak to the mobile communication terminal 100 is canceled on the relay device 200 side. It will be. In this case, for example, if the call termination based on the silent time is performed by the relay device 200 or there is no call termination instruction due to the mobile communication terminal 100 operating the operation unit 130 (step S510: No), step S501 is performed. Returning to, the reception operation is started.

  Similarly, if the floor cannot be acquired and the non-speaking right signal transmitted by the relay apparatus 200 is received (step S506: No), similarly, if there is no call termination instruction (step S510: No), the process returns to step S501. The voice transmitted from the other mobile communication terminal 100 is received. In this case, the PTT communication execution unit 113 controls the audio processing unit 150, converts the digital audio data (packet data) received by the communication control unit 120 into an analog signal, and reports the sound from the speaker 151.

  If there is neither voice data relaying nor transmission operation (step S501: No, step Sstep S504: No), if there is no call termination instruction, the processing is continued until any operation occurs (step S501). S510: No).

  On the other hand, when there is a call termination instruction such as the relay device 200 terminating the PTT due to the silence time longer than the set time (step S510: Yes), the PTT operation control unit 114 stops the operation by the PTT communication execution unit 113 By doing so, the PTT call is ended, and this processing is also ended.

  As described above, in each mobile communication terminal 100 in which the PTT connection is established, the control information transmitted from the requesting mobile communication terminal 100, the control information changed due to the presence of the rejection terminal, or the default Based on the setting, the communication operation during the PTT call is controlled.

  As described above, according to the above-described embodiment of the present invention, when performing a PTT call, the user can arbitrarily set the settings for limiting the voice transmission time and the like, and the operation based on this setting is performed at each terminal. For example, when it is necessary to quickly collect the opinions of all the members, it is possible to shorten the possible transmission time of each member and perform an appropriate call according to the situation.

  In addition, since the recording operation of each terminal can be controlled by transmitting information indicating whether recording is permitted or not, and the recording time of each voice received at each member terminal connected to PTT, the transmitted voice can be transmitted to each terminal. You can record and leave a message.

  In addition, since it is possible to perform a PTT call by specifying a PTT silent end time in advance, for example, in a case where a PTT call is frequently performed, the silence end time is shortened and a voice is transmitted in each call. When the transmission is interrupted and the sound is silenced, the connection of each terminal can be terminated quickly and the power consumption can be reduced.

  In addition, when there is a user who cannot agree with the setting contents presented by the PTT requester, the default setting is automatically assigned to the terminal, and the control information is automatically changed so that consistency can be obtained in other terminals. Therefore, it is possible to perform appropriate control according to the situation and request of each user.

  The said embodiment is an example and the application range of this invention is not restricted to this. That is, various applications are possible, and all embodiments are included in the scope of the present invention.

  In the above embodiment, the connection destination information is held in each mobile communication terminal 100 and the connection destination is designated based on the connection destination information. However, in the above embodiment, the connection destination information possessed by each mobile communication terminal 100 And the group information may be held by the relay apparatus 200. In this case, when the mobile communication terminal 100 that starts PTT accesses the relay apparatus 200, the mobile communication terminal 100 may specify the connection destination based on the connection destination information that the relay apparatus 200 has. As described above, when the relay device 200 has connection destination information for each of the mobile communication terminals 100, the relay device 200 obtains the respective communication status (so-called presence) as needed, and the requesting mobile communication terminal. 100. That is, a group / list management function, a presence function, etc. possessed by a general SIP server may be realized by the relay apparatus 200.

  In the above embodiment, the control relating to the voice transmission time is performed by each mobile communication terminal 100, but this control may be performed by the relay device 200. In this case, the time during which the call signal is received from the mobile communication terminal 100 having the floor is measured on the relay device 200 side, and when the time specified by the control information has elapsed, the call control operation or the like is used. The voice transmission from the mobile communication terminal 100 may be stopped. Further, if the call termination based on the silent time can be performed by the operation on the mobile communication terminal 100 side, the control may be performed by the process of the mobile communication terminal 100 instead of the relay device 200. The setting items and contents shown in the restriction information are arbitrary and are not limited to those exemplified in the above embodiment.

  In the above embodiment, a mobile communication terminal is illustrated as a terminal device to which the present invention is applied. However, any terminal device (for example, a personal computer, The present invention may be applied to a PDA (Personal Digital Assistants: portable information terminal).

  In addition, not only can the mobile communication terminal 100 described above be provided as a terminal device having functions for realizing the present invention in advance, but also by applying the program to a terminal device that does not have these functions. The terminal device according to the present invention can be made to function. In this case, a program for executing each process of the mobile communication terminal 100 described above is applied to the terminal device, and a computer (such as a CPU) that controls the terminal device executes the program, so that the present invention is applied. It can function as a terminal device.

  In addition, the relay device 200 of the above embodiment can be realized by a general-purpose device such as a workstation or a personal computer by applying a program as well as being configured by a dedicated device. In this case, the program executed by the control unit 210 described above is applied (installed) to a general-purpose device, and the program to which the computer (CPU or the like) of the general-purpose device is applied is caused to function as the relay device 200. Can do.

  The application method of such a program is arbitrary. For example, the program can be applied to an arbitrary device by providing it via a communication medium such as the Internet, and a predetermined recording medium (for example, a memory card, a CD-ROM, a DVD, Etc.) can also be applied by storing and distributing the program.

It is a figure which shows the structure of the PTT system concerning embodiment of this invention. It is a block diagram which shows the structure of the mobile communication terminal shown in FIG. It is a functional block diagram which shows the function structure implement | achieved by the control part shown in FIG. It is a block diagram which shows the structure of the relay apparatus shown in FIG. It is a functional block diagram which shows the function structure implement | achieved by the control part shown in FIG. It is a flowchart for demonstrating the "PTT start request process" concerning embodiment of this invention. 7 is a diagram illustrating a display example of a screen displayed in the PTT start request process illustrated in FIG. 6, where (a) illustrates a display example of a “PTT setting screen”, and (b) illustrates a display example of a “group selection screen”. (C) shows a display example of the “member selection screen”. FIG. 3 is a diagram illustrating an example of information stored in a connection destination information storage unit illustrated in FIG. 2. It is a flowchart for demonstrating the "PTT establishment process" concerning embodiment of this invention. 10 is a flowchart for explaining a “PTT relay process” started in the PTT establishment process shown in FIG. 9. It is a figure which shows the example of the information stored in the PTT information storage part shown in FIG. 4, (a) shows the example of PTT information at the time of receiving control information, (b) is controlled by presence of a control rejection terminal. An example of PTT information when information is updated is shown. It is a flowchart for demonstrating the "PTT response process" concerning embodiment of this invention. 13 is a flowchart for explaining a “PTT call process” activated in the PTT response process shown in FIG. 12.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... PTT system, NW ... Communication network, BS ... Base station, 100 ... Mobile communication terminal, 110 ... Control part, 111 ... PTT transmission process part, 112 ... PTT reception process part, 113 ... PTT communication execution part, 114 ... PTT operation control unit, 120 ... communication control unit, 121 ... antenna, 130 ... operation unit, 140 ... display unit, 150 ... audio processing unit, 151 ... speaker, 152 ... microphone, 160 ... storage unit, 161 ... program storage unit, 162: Connection destination information storage unit, 163 ... Control information storage unit, 164 ... Recording data storage unit, 200 ... Relay device, 210 ... Control unit, 211 ... Call control unit, 212 ... Control information transfer unit, 213 ... PTT relay unit , 220 ... Communication control section, 230 ... Input section, 240 ... Output section, 250 ... Storage section, 251 ... Program storage section, 252 ... Subscriber information storage , 253 ... connection request storage unit, 254 ... PTT information storage unit

Claims (12)

In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means,
The control information includes information indicating whether recording of voice received by half-duplex communication is permitted,
The communication control means controls a recording operation at the time of executing the half-duplex communication based on recording permission / inhibition indicated by the control information.
A terminal device characterized by that. In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means,
The control information includes information indicating a recordable time of voice received by half-duplex communication,
The communication control means controls the recording operation so that the recording time during the half-duplex communication becomes a recordable time indicated by the control information.
A terminal device characterized by that. In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means,
The control information includes information for specifying a silent end time during half-duplex communication.
A terminal device characterized by that. In a terminal device having a call function using half-duplex communication by packet switching,
Start request transmission means for transmitting a half-duplex communication start request;
Control information transmission means for transmitting control information for controlling a communication operation set by a user together with transmission of the start request by the start request transmission means,
Start request receiving means for receiving a half-duplex communication start request transmitted from another terminal device;
Control information receiving means for receiving control information transmitted together with the start request received by the start request receiving means;
Control information storage means for storing control information received by the control information receiving means;
Communication control means for controlling half-duplex communication started in response to the start request received by the start request receiving means based on the control information stored in the control information storage means;
Control information updating means for updating the control information stored in the control information storage means to a default value when execution of control based on the control information is rejected by a user,
The communication control means controls the half-duplex communication based on the control information updated by the control information update means;
A terminal device characterized by that. The control information includes information designating a voice transmission time during half-duplex communication,
The communication control means controls a voice sending operation so that a voice sending time during the half-duplex communication becomes a voice sending time indicated by the control information;
The terminal device according to claim 1, wherein the terminal device is a terminal device. The terminal device is a mobile communication terminal;
The terminal device according to claim 1, wherein the terminal device is a device. A relay device that relays half-duplex communication by exchanging packets between two or more terminal devices,
Connection information storage means for storing connection information of each of the terminal devices;
Control information receiving means for receiving information indicating a connection destination and control information for controlling a communication operation at the connection destination from the terminal device that has transmitted the half-duplex communication start request;
Control information storage means for storing control information received by the control information receiving means;
Based on the connection information stored in the connection information storage means, a relay means for establishing half-duplex communication between the terminal device that has transmitted the start request and a connection destination terminal device;
Control information transmitting means for transmitting the control information received by the control information receiving means to the terminal device of the connection destination;
Communication control means for controlling half-duplex communication established by the relay means based on the control information stored in the control information storage means ,
The control information includes information for specifying a silent end time during half-duplex communication,
The communication control means controls to end the half-duplex communication when the silent time during the half-duplex communication is the silent end time indicated by the control information;
Relay device comprising a call. In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling the communication operation set by the user together with the transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
When the control information includes information indicating whether recording of voice received by half-duplex communication is permitted or not, based on the recording permission / inhibition indicated by the control information, a function for controlling the recording operation when the half-duplex communication is performed;
A program characterized by realizing. In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling the communication operation set by the user together with the transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
When the control information includes information indicating the recordable time of the voice received by half-duplex communication, the recording operation is controlled so that the recording time at the half-duplex communication becomes the recordable time indicated by the control information. Function to
A program characterized by realizing. In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling a communication operation set by a user, including information specifying a silent end time during half-duplex communication along with transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
A program characterized by realizing. In a computer that controls a terminal device having a call function using half-duplex communication by packet switching,
A function to send a half-duplex communication start request;
A function of transmitting control information for controlling the communication operation set by the user together with the transmission of the start request;
A function of receiving a half-duplex communication start request transmitted from another terminal device;
A function of receiving control information transmitted together with the received start request;
A function of storing received control information in a storage device;
A function for controlling half-duplex communication started in response to the received start request, based on control information stored in the storage device;
A function of updating the control information stored in the storage device to a default value when execution of control based on the control information is rejected by a user;
A function of controlling the half-duplex communication based on the updated control information;
A program characterized by realizing. On the computer,
A function of storing connection information of each of two or more terminal devices that perform half-duplex communication by packet switching in a storage device;
From the terminal device that sent the half-duplex communication start request, information indicating the connection destination and information specifying the silent end time during half-duplex communication for controlling the communication operation at the connection destination were included. A function of receiving control information;
A function of storing received control information in a storage device;
Based on connection information stored in the storage device, a function of establishing half-duplex communication between a terminal device that has transmitted the start request and a terminal device that is a connection destination;
A function of transmitting the received control information to the terminal device of the connection destination;
A function for controlling to terminate the half-duplex communication based on the control information stored in the storage device when the silent time during the half-duplex communication is the silent end time indicated by the control information When,
A program characterized by realizing.

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