JP4804081B2 - Wireless conference wireless LAN terminal and line usage status display method - Google Patents

Description

  The present invention relates to a case where a three-party call is made by a terminal having both a public wireless telephone function such as a mobile phone and a PHS and a private wireless telephone function such as an IP telephone using a wireless LAN (Local Area Network). The present invention relates to a wireless LAN terminal for facilitating control and a display method of an address screen (line usage status table) in the wireless LAN terminal.

  Conventionally, for example, a case where a three-party call is made by connecting to two terminals other than itself using a public line such as two-line ISDN or PHS is known. In this case, since both lines are of the same type, the address system is common. For example, even when the first line is connected and the second line is connected, the address can be selected and connected from the same address system. good.

  In recent years, in addition to the above public lines, wireless LANs have become widespread as one of computer communication networks, and are actively used in offices, homes, urban areas (for example, stations, airports, fast food restaurants) and the like. As is well known, in such a wireless LAN, wireless communication is performed between a wireless LAN connection device called an access point (hereinafter also referred to as AP) and a wireless LAN terminal. In many wireless LANs, IEEE (Institute of Electrical and Electronics Engineers) 802.11, which is one of the international standards, is used as a data link layer protocol, and IP (Internet Protocol) is used as a network layer protocol. ) Is used.

  Hereinafter, a communication system using a plurality of wireless LAN terminal devices (hereinafter referred to as wireless LAN terminals) accommodated in two wireless LANs facing each other via an IP communication network as a premise of the present invention will be described with reference to the drawings. This will be described in detail. FIG. 7 is a system configuration diagram showing a computer network system configuration including the communication system wireless LAN. In the present specification, devices or parts having the same function or function in the system are denoted by the same reference numerals, and when each device or part is individually described, a branch number is added after the reference numeral to identify each. I will explain.

  In FIG. 7, in a computer network system including this wireless LAN, a first LAN and a second LAN are connected by an IP (Internet Protocol) network 5. The first LAN is composed of wireless LAN terminals 101-1, 101-2, 101-3, access points (AP) 2-1, 2-2, personal computers 4-1, 4-2, and a router 3-1. It is configured. The wireless LAN terminals 101-1, 101-2, and 101-3 are information communication terminals each having a wireless LAN communication function that operates in conformity with IEEE 802.11, for example, an information processing apparatus such as a personal computer, a PDA ( It is an information terminal such as Personal Digital Assistant) or a telephone terminal such as a wireless IP telephone, and performs wireless LAN communication with AP2.

  APs 2-1 and 2-2 have a wireless LAN communication function that operates in accordance with IEEE 802.11 and a wired LAN communication function such as Ethernet (registered trademark) that operates in conformity with IEEE 802.3. 101 performs wireless LAN communication with other communication devices (such as personal computers 4-1, 4-2 and router 3-1, etc.) connected to the first LAN. Is what you do.

  The router 3-1 is connected to the first LAN and the IP network 5, and monitors an IP (Internet Protocol) packet flowing on the first LAN and an IP packet obtained from the IP network 5. Is a communication device that routes IP packets based on the IP header information (destination IP address information, port number information, etc.), and determines that the IP packet flowing on the first LAN should be routed to the IP network 5 side In this case, this is sent to the IP network 5 side, and if it is determined that the IP packet obtained from the IP network 5 should be routed to the first LAN side, this is sent to the first LAN side. Send it out.

  Further, the personal computers 4-1 and 4-2 have a normal wired LAN board, and are connected to the first LAN to transmit and receive IP packets and perform IP communication (LAN communication). is there.

  The second LAN has the same configuration as the first LAN, and includes wireless LAN terminals 101-4, 101-5, 101-6, access points (AP) 2-3, 2-4, and personal computers 4-3. 4-4 and the router 3-2. The wireless LAN terminals 101-4, 101-5, and 101-6 are each a terminal device having a wireless LAN communication function that operates in conformity with IEEE 802.11, and includes a personal computer, a PDA, a wireless IP telephone device, and the like. Wireless LAN communication is performed between APs 2-3 and 2-4.

  The APs 2-3 and 2-4 have a wireless LAN communication function that operates in accordance with IEEE 802.11 and a wired LAN communication function such as Ethernet (registered trademark) that operates in accordance with IEEE 802.3. Wireless LAN communication with the terminal 101 and LAN communication with other communication devices (such as the personal computers 4-3 and 4-4 and the router 3-2) connected to the second LAN It is.

  The router 3-2 is connected to the second LAN and the IP network 5, monitors IP packets flowing on the second LAN and IP packets obtained from the IP network 5, and IP header information of this IP packet It is a communication device that routes IP packets based on (destination IP address information, port number information, etc.). When it is determined that the IP packet flowing on the second LAN is to be routed to the IP network 5 side, this is sent to the IP network 5 side, and the IP packet obtained from the IP network 5 is If it is determined that it should be routed to the LAN side, it is sent to the second LAN side.

  Furthermore, the personal computers 4-3 and 4-4 have a normal wired LAN board, are connected to the first LAN, transmit and receive IP packets, and perform IP communication (LAN communication). .

  With the above configuration, the wireless LAN terminal 101 on the first LAN side performs IP communication with other wireless LAN terminals 101 and the personal computer 4 on the first LAN side, and also includes the router 3-1, the IP network 5, and The second LAN side wireless LAN terminal 101 and the personal computer 4 can perform IP communication via the router 3-2.

  Similarly, the wireless LAN terminal 101 on the second LAN side performs IP communication with other wireless LAN terminals 101 and the personal computer 4 on the second LAN side, and also includes the router 3-2, the IP network 5, and the router. It is configured to be able to perform IP communication with the wireless LAN terminal 101 on the first LAN side and the personal computer 4 via 3-1.

  Next, the configuration of the access point (AP) constituting the communication system will be described. FIG. 8 is a block diagram showing the internal configuration of AP2.

  The AP 2 includes a router unit 2A and a LAN wireless unit 2B. The LAN radio unit 2B includes an antenna 21, an RF (Radio Frequency) unit 22, a baseband unit 23, a MAC (Media Access Controller) layer processing unit 24, a communication processing unit 20, a program memory 20-1, And a work memory 20-2.

  The RF unit 22, the baseband unit 23, and the MAC layer processing unit 24 are connected to the communication processing unit 20 via the bus 29. Then, the communication processing unit 20 includes the RF unit 22, the baseband unit 23, and the MAC layer processing unit 24 while using the work memory 20-2 according to the control program and setting data in the program memory 20-1. The entire LAN wireless unit 2B is controlled.

  In such a configuration, the router unit 2A has an IP (Internet Protocol) address, a TCP (Transmission Control Protocol) port number, or a UDP (User Datagram) of an IP packet received from the network (first LAN or second LAN). Protocol) The IP packet is routed based on a preset rule with reference to an IP header including a port number. An IP packet to be sent to the LAN wireless unit 2B is sent to the MAC layer processing unit 24.

  The MAC layer processing unit 24 performs conversion processing between the data link layer of IEEE802.3 that is an Ethernet (registered trademark) standard and the data link layer of IEEE802.11 that is a wireless LAN standard.

  The baseband unit 23 modulates an IP packet subjected to MAC processing for IEEE802.11 into a baseband signal, or demodulates the baseband signal to restore the original IP packet.

  The RF unit 22 uses the baseband signal received from the baseband unit 23 according to IEEE 802.11, for example, a carrier radio frequency specified by a DS-SS (Direct Sequence Spread Spectrum) method or an FH-SS method (Frequency Hopping Spread Spectrum). And is transmitted as a radio signal from the antenna 21. On the contrary, the carrier radio frequency is removed from the radio signal received from the antenna 21 to restore the original baseband signal, which is sent to the baseband unit 23.

  Hereinafter, an operation when an IP packet is transmitted from the network (first LAN or second LAN) via the antenna 21 will be described.

  The MAC layer processing unit 24 converts the MAC layer of the IP packet received from the network (first LAN or second LAN) via the router unit 2A, from IEEE 802.3 for Ethernet (registered trademark) to IEEE 802. 11 to the baseband unit 23.

  The baseband unit 23 modulates the received IP packet in accordance with wireless IEEE 802.11, generates a baseband signal, and sends the baseband signal to the RF unit 22.

  The RF unit 22 puts the baseband signal from the baseband unit 23 on the carrier radio frequency, and transmits it to the wireless LAN terminal 101 as a radio signal from the antenna 21.

  Next, an operation when a wireless signal is received from a wireless LAN terminal will be described. The antenna 21 sends a radio signal received from the wireless LAN terminal 101 to the RF unit 22.

  The RF unit 22 removes the carrier radio frequency from the radio signal, restores the original baseband signal, and sends it to the baseband unit 23.

  The baseband unit 23 demodulates the baseband signal, restores the original IP packet, and sends it to the MAC layer processing unit 24.

  The MAC layer processing unit 24 converts the MAC layer of the IP packet from IEEE802.11 for wireless to IEEE802.3 for Ethernet (registered trademark) and sends it to the router unit 2A. The router unit 2A transfers the received IP packet to a LAN or the like using the IP address of the received IP packet.

  Next, the configuration of the wireless LAN terminal constituting the communication system will be described. FIG. 9 is a block configuration diagram showing an internal configuration of the wireless LAN terminal 101.

  In FIG. 9, the wireless LAN terminal 101 includes an information communication terminal unit 101A and a LANLAN wireless unit 101B.

  The LAN wireless unit 101B includes an antenna 11, an RF (Radio Frequency) unit 12, a baseband unit 13, a MAC (Media Access Controller) layer processing unit 14, an upper layer processing unit 15, a terminal interface unit 16, A communication processing unit 10, a program memory 10-1, and a work memory 10-2 are provided.

  The RF unit 12, the baseband 13, the MAC layer processing unit 14, the upper layer processing unit 15, and the terminal interface unit 16 are connected to the communication processing unit 10 via the bus 19.

  The communication processing unit 10 uses the work memory 10-2 according to the control program and setting data in the program memory 10-1, and uses the RF unit 12, the baseband processing unit 13, the MAC layer processing unit 14, The entire LAN wireless unit 101B including the layer processing unit 15 and the terminal interface unit 16 is controlled.

  The information communication terminal unit 101A is an information processing apparatus such as a personal computer, an information terminal such as a PDA (Personal Digital Assistant), or a telephone terminal such as an IP telephone, and data and voice encoding sent from these information terminals or telephone terminals A signal is transmitted to the terminal interface unit 16, or data and a voice encoded signal from the terminal interface unit 16 are received and transmitted to the information terminal or the telephone terminal.

  In the LAN wireless unit 101B, the terminal interface unit 16 performs processing related to an interface for mutually transferring data and voice encoded signals between the information communication terminal unit 101A and the LAN wireless unit 101B.

  The upper layer processing unit 15 performs IP packet processing related to the network layer / transport layer and transmits it between the network layer / transport layer, and includes an IP header including an IP address, a TCP port number, or a UDP port number. The process of giving / deleting is performed.

  The MAC layer processing unit 14 performs IP packet processing related to the data link layer, and assembles or disassembles IP packets storing data and voice bucket data in accordance with IEEE 802.11, and transmits the data packets between the data link layers. The MAC address is assigned or deleted.

  The baseband unit 13 modulates the IP packet to generate a baseband signal, or demodulates the baseband signal to restore the original IP packet.

  The RF unit 12 puts the baseband signal received from the baseband unit 13 on the carrier radio frequency in accordance with IEEE 802.11, and transmits it as a radio signal from the antenna 11. Conversely, the radio signal received from the antenna 11 is restored to a baseband signal and sent to the baseband unit 13.

  Next, an operation when data generated by the information communication terminal unit 1 </ b> A and a voice encoded signal are transmitted via the antenna 11 will be described. The terminal interface unit 16 sends data and a voice encoded signal from the information communication terminal unit 1 </ b> A to the upper layer processing unit 15.

  The upper layer processing unit 15 generates an IP packet by performing IP header processing such as IP address assignment / TCP / UDP port number assignment, and then sends the IP packet to the MAC layer processing unit 14.

  The MAC layer processing unit 14 subjects the IP packet from the upper layer processing unit 15 to MAC processing such as MAC address assignment according to the IEEE 802.11 processing procedure, and sends the IP packet to the baseband unit 13.

  The baseband unit 13 modulates the received IP packet according to IEEE 802.11, generates a baseband signal, and sends the baseband signal to the RF unit 12.

  The RF unit 12 puts the baseband signal from the baseband unit 13 on the carrier radio frequency according to IEEE 802.11, and sends it out from the antenna 11 to the AP 2 as a radio signal.

  Next, an operation when receiving a signal transmitted from the access point 2 and outputting it to the information communication terminal unit 1A will be described. The antenna 11 sends the radio signal received from the AP 2 to the RF unit 12.

  The RF unit 12 removes the carrier radio frequency from the received radio signal, restores it to a baseband signal, and sends it to the baseband unit 13.

  The baseband unit 13 demodulates the received baseband signal, restores it to the original IP packet, and sends it to the MAC layer processing unit 14.

  The MAC layer processing unit 14 deletes the MAC address from the received IP packet according to IEEE 802.11, and sends the MAC address to the upper layer processing unit 15.

  The upper layer processing unit 15 deletes the TCP / UDP header and the IP header based on the setting data from the IP packet from the MAC layer processing unit 14, and communicates the obtained data and the voice encoded signal via the terminal interface unit 16. Send to terminal unit 1A.

  Utilizing the features of the public line and wireless LAN described above, free calls can be made with IP telephones using wireless LANs on the premises, and calls can be made at any place on public lines such as mobile phones and PHS outside the premises. The terminal has been commercialized. If these terminals are located on the premises, a call is made by connecting to the first IP phone via a wireless LAN, and at the same time, a voice conference call is made between three points by connecting to a second mobile phone or PHS via a public line. It becomes possible to make a three-party call.

  An IP phone can make a call simultaneously with a mobile phone or a PHS, but it cannot connect more than a predetermined number of mobile phones or PHS at the same time. Similarly, an IP phone can make a call simultaneously with a multi-line IP phone, but cannot connect more than a predetermined number of IP phones simultaneously. Here, for simplification of explanation, it is assumed that the predetermined number of lines is 1, and that only one line can be connected to a mobile phone, PHS, and IP phone at the same time. Therefore, when a mobile phone or PHS is first connected via a public line, the next connection for a three-party call is limited to the wireless LAN.

  Here, a connection operation by address selection is considered. When not connected to a mobile phone, PHS, or IP phone, since the mobile phone, PHS, and wireless LAN have different address systems, it is possible to select and connect addresses of all connectable terminals. However, for example, when a mobile phone or PHS is connected as the first connection, since the second connection is limited to the IP phone, only the IP phone address can be selected.

  When a three-party conference is connected through different communication paths in this way, selectable addresses change between the first connection and the second connection, so the user can recognize the connectable address for the second connection. However, there is a problem that it is difficult to perform a connection operation.

  The present invention is a wireless LAN terminal, and when the number of communication terminals connected by the same communication interface is restricted, an operation to connect to more than the restricted number of communication terminals via the same communication interface can be prevented, It is an object of the present invention to provide a method for displaying an address of a wireless LAN terminal for three-point audio conferencing that facilitates a user connection operation.

  In order to solve the above problems, the present invention provides a telephone function for a public line such as a mobile phone or a PHS, an IP telephone function for a wireless LAN, a function for calling simultaneously with different parties using both functions, Wireless LAN for three-point audio conferencing, which has the function of synthesizing the voice received from the other party and sending it to the other party, and the function of synthesizing the voice received from both parties and outputting as a voice In the terminal, the address of the partner terminal that can be connected, the address of the partner terminal that cannot be connected, and the address of the partner terminal in communication are distinguished and displayed.

  That is, the present invention synthesizes a telephone function for public lines, an IP telephone function for wireless LAN, a function for calling simultaneously with different parties using both functions, and the voice of the person and the voice received from one party. The address display of the wireless LAN terminal for three-point audio conference having the function of sending to other parties, the function of synthesizing the voices received from both parties and outputting the voice, and the function of displaying the address of the other party In the method, in the function of displaying the address of the partner terminal, the address of the partner terminal that can be connected, the address of the partner terminal that cannot be connected, and the address of the partner terminal in communication are displayed separately.

  In addition, the present invention provides information having a wireless unit for making a call via a public wireless line, an IP wireless unit for making a call via a wireless LAN, and a three-point audio conference function for simultaneously calling different parties using both functions. In the wireless LAN terminal for a three-point audio conference having a communication terminal unit, the information communication terminal unit synthesizes the person's voice and the voice received from one partner and sends them to the other party. Synthesis circuit for synthesizing and outputting voice received from the other party, a display unit for displaying the address of the other party terminal, a line usage situation table describing the line usage situation of the other party terminal, and the line usage situation table The line usage table management unit manages the contents of the line, and the line usage table management unit cannot connect to the address of the other terminal that can be connected to the line usage table. To distinguish address of the other terminal of the address of the other terminal, as well as communicating to manage.

  By having the above means, the present invention can recognize the address that can be connected by the user for the second connection when the number of communication terminals connected by the same communication interface is limited, and via the same communication interface Therefore, it is possible to prevent an operation of connecting to a communication terminal exceeding the restricted number, and a user can easily perform a connection operation.

  The configuration and operation of a three-party call communication system using a three-point audio conference wireless LAN terminal according to the present invention will be described with reference to FIG. The public / IP shared telephone 1 in the center of the figure is connected to a mobile phone or PHS (hereinafter referred to as mobile / PHS) 7 via a wireless public network 6 such as a mobile phone or PHS.

  Similarly, the public / IP shared telephone 1 is connected to an IP telephone 8 via an access point (AP) 2 in a wireless LAN and possibly an IP communication network 5. That is, when the public / IP shared telephone 1 is accommodated in the same LAN as the IP telephone 8, it is possible to make a call with the IP telephone 8 via the AP 2 in the LAN. When not accommodated in the same LAN as the IP phone 8, AP2 in the LAN → Router 3 (not shown) → IP communication network 5 (not shown) → Router 3 (not shown) → An opposite LAN It becomes possible to make a call with the IP phone 8 via the route.

  The voice signal a input from the public / IP common telephone 1 is combined (mixed) with the voice signal c received from the IP telephone 8 to become a + c, and is sent to the mobile / PHS 7 via the wireless public network 6, Output from the PHS 7 as sound.

  The voice signal a input from the public / IP common telephone 1 is combined with the voice signal b received from the portable / PHS 7 to become a + b, sent to the IP telephone 8 via the AP 2, and output as voice from the IP telephone 8. The

  The voice signal b received from the mobile phone or the PHS 7 and the voice signal c received from the IP phone 8 are combined to be b + c, and output from the public / IP common phone 1 as voice.

  As described above, the public / IP shared telephone 1, the mobile phone, the PHS 7, and the IP telephone 8 can listen to the voices of the other two parties, so that a three-party call is realized.

  The outline of the configuration of the wireless LAN terminal 1 capable of a three-point conference call according to the present invention will be described with reference to FIG. A portable / PHS shared telephone 1 according to the present invention includes an information communication terminal unit 1A, an IP (LAN) wireless unit 1B, and a portable / PHS wireless unit 1C. The information communication terminal unit 1A has various functions as a conventional information communication terminal, and includes a control unit 1A01, an IP wireless unit interface 1A02, a portable / PHS interface 1A03, a data processing / communication processing unit 1A04, A voice synthesis circuit 1A05, a voice input / output unit 1A06, a line usage status table 1A07, a telephone directory 1A08, a line usage status table management unit 1A09, a display unit 1A10, and a data input unit 1A11 are provided. In particular, the wireless LAN terminal 1 of the present invention is characterized in that it includes a voice synthesis color 1A05, a line usage status table 1A07, and a line usage status table management unit 1A09.

  The control unit 1A01 is means for controlling the operation on the premise of the wireless LAN terminal 1.

  The IP wireless unit interface 1A02 is an interface with the IP wireless unit 1B. Similarly, the portable / PHS wireless unit 1A03 is an interface with the portable / PHS wireless unit 1C.

  The data processing / communication processing unit 1A04 is a means for performing transmission processing, incoming processing, and other various communication processing of the public / IP shared telephone 1.

  The voice synthesizing circuit 1A05 has the function of sending the voice a + b obtained by mixing (synthesizing) the voice a from the voice input / output unit 1A06 to the voice c of the call received by the IP radio unit 1B to the mobile / PHS radio unit 1C. The voice a + c obtained by mixing (synthesizing) the voice a from the voice input / output unit 1A06 with the voice b of the call received by the PHS radio unit 1C, and the voice of the call received by the IP radio unit 1B c and the voice b received by the portable / PHS wireless unit 1C are mixed (synthesized) and b + c is transmitted to the voice input / output unit 1A06.

  The voice input / output unit 1A06 may be a normal microphone and speaker.

  The line usage status table 1A07 is a table that displays a line and a call destination being used for the first call and describes the remaining call destinations (lines) that can be used.

  The phone book 1A08 is a normal phone book, in which addresses and lines corresponding to the call destination are described.

  The line usage status table management unit 1A09 cannot display or use the name of the call destination or the usable line or address based on the line or address information in the line usage status table 1A based on the result of the call status. This is means for rewriting the line usage status table 1A07 so as to display the line and address.

  The display unit 1A10 displays the contents of the line usage status table in addition to the normal display function.

  An example of a voice synthesis circuit 1A05 that performs voice synthesis (mixing of voice) in the public / IP telephone 1 will be described with reference to FIG.

  The speech synthesis circuit 1A05 includes a first first speech decoder 51-A, a first D / A converter 52-A, a first adder 53-A, and a first A / D conversion. 54-A, first speech encoder 55-A, second speech decoder 51-B, second D / A converter 52-B, and second adder 53-B. And a second A / D converter 54-B, a second speech encoder 55-B, and a third adder 56.

  The speech encoded signal b input from the mobile / PHS 7 via the mobile / PHS radio unit interface 1A03 is decoded by the first speech decoder 51-A and is then output by the first D / A converter 52-A. The original audio signal b is restored.

  The voice signal a uttered by the person himself and inputted from the voice input / output interface of the public / IP common telephone 1 and the restored voice signal b are added and synthesized by the first adder 53-A, and the voice signal (a + b) The first A / D converter 54-A converts the signal into a digital signal, the first speech encoder 55-A performs speech encoding to generate a speech encoded signal (a + b), and the IP radio unit interface 1A02 And sent to the IP telephone 35.

  Similarly, the voice encoded signal c input from the IP telephone 8 is decoded by the second voice decoder 51-B and restored to the original voice signal c by the second D / A converter 52-B. The

  The voice a input from the voice input / output interface of the public / IP common telephone 1 and the restored voice signal c are added and synthesized by the second adder 53-B to become a voice signal (a + c), and the second It is converted into a digital signal by the A / D converter 54-B, voice-coded by the second voice coder 55-B to become a voice-coded signal (a + c), and passes through the portable / PHS radio unit interface 1A03. It is sent to mobile / PHS7.

  In parallel with the above, the outputs of the first D / A converter 52-A and the second D / A converter 52-B are added and synthesized by the third adder 56, and A voice signal (b + c) obtained by adding and synthesizing the voice signal from the IP telephone 8 is output from the voice input / output unit 1A06 of the public / IP common telephone 1 and listened to by the person himself / herself.

  Next, an example of a display screen (line usage status table) for controlling connection to the mobile / PHS 7 or the IP phone 8 is shown in the figure. FIG. 4 is a display screen (line usage status table) for a one-to-one call.

  (1) of FIG. 4 is an example of a display screen before starting a call. The address of the wireless LAN terminal of Mr. A, B, and Satoshi that can be connected to the wireless LAN terminal of the person (sender) is displayed. Each wireless LAN terminal can make a mobile phone (PHS) and an extension phone (IP phone) using a wireless LAN, and has an address corresponding to the mobile phone and an extension.

  Among them, only Mr. Kou is currently outside the extension range and can only connect with a mobile phone, so as shown in the figure, “Out of service area” is displayed next to the extension address, and other addresses are indicated as being able to talk. .

  When a phone call with Mr. Oto is started from his / her wireless LAN terminal, Mr. Oto's cell phone displays that the phone is busy as illustrated in FIG.

  Since the user's mobile phone is in use, it is impossible to make a phone call with Mr. Kou and Mr. Tatsumi, and a message indicating that a call cannot be made is displayed next to the mobile phone address.

  Since Mr. Oto is communicating with the person himself / herself with a mobile phone, there is no point in communicating with the extension in addition to the mobile phone, and a telephone call is displayed next to the extension address.

  The extension of Mr. Kou and Mr. Tsuji and the extension of the principal are not used, and it is possible to make a call with Mr. Oto's extension. Moreover, since Mr. Ko's extension is out of the service area, the service area is displayed.

  Next, a display screen (line usage status table) in the case of a three-party call will be described with reference to FIG. (1) of FIG. 5 is an example of a display screen before starting a call. In the line usage status table, addresses of the wireless LAN terminals of A, B, B, and Ding that can be connected to the wireless LAN terminal of the person (sender) are displayed. Each wireless LAN terminal will be described on the assumption that a mobile phone and an extension telephone using a wireless LAN are possible, and that addresses corresponding to the mobile phone and the extension are also provided.

  Among them, Mr. Kou and Mr. Ding are currently outside the extension range and can only connect with mobile phones, so as shown in the figure, “Out of range” is displayed next to the extension address of Kou, Ding, and next to other extension addresses. Indicates that a call is available.

  When a phone call with Mr. Kou is started, as shown in (2) of FIG. 5, “calling” is displayed beside Mr. Kou's cell phone address.

  Since the user's mobile phone is in use, it becomes impossible to make a phone call with Mr. Oto, Mr. Tsuji and Mr. Ding, and a message indicating that a call cannot be made is displayed next to the mobile phone address of each wireless LAN terminal.

  Since Mr. Ko is talking with himself / herself on the mobile phone, there is no point in communicating with the extension in addition to the mobile phone.

  The extension of Mr. Oto and Mr. Tsuji and the extension of the principal are not used and can be used for calling, so a call is displayed next to each extension address.

  Next, when a call is started with Mr. Oto for an extension for a three-party call, a message indicating that the call is in progress is displayed next to Mr. Oto's extension address as illustrated in FIG. 5 (3).

  Since the user's mobile phone and extension are in use, calls cannot be made between Mr. Tsuji and Ding with the mobile phone and the extension, and a call cannot be displayed next to the mobile address and the extension address.

  Finally, if you disconnect the communication with Mr. Ko and return to the two-party communication between you and Mr. O, the communication between the person and Mr. Ko will stop and you will be able to talk. Next to Mr. Ding's mobile address is displayed that the call is available.

  Mr. Kou's extension phone should be able to talk, but since the extension is out of range, the extension address will continue to be displayed next to the extension address.

  In this way, the principal can display the line usage status of the partner wireless LAN terminal on the display unit of the wireless LAN terminal. Since it can be easily confirmed, a three-party call can be easily made via a communication network having different addresses.

  Next, a flowchart of the outgoing operation using the address screen (line usage status table) according to the present invention will be described with reference to FIG. First, the presence or absence of a screen operation input is checked at the top (S1), and if there is no screen operation, the presence or absence of a screen operation is checked again.

  If the screen operation is the cursor position movement, the cursor position is moved. When the cursor moves to the end of the screen, the address screen is scrolled up, down, left and right (S2), and the process returns to step S1.

  If the screen operation is a connection command, it is determined whether connection is possible using the address at the cursor position (S3).

  If it is determined that the connection is possible, call processing is performed to connect to the address designated by the cursor, and a message indicating that a call is in progress is displayed next to the address. Furthermore, a call impossible message is displayed next to all addresses related to the communication interface (for example, mobile phone, PHS, or wireless LAN) of the address designated by the cursor, which is a feature of the present invention (S4), and the process returns to step S1. .

  In step S3, if there is no address at the designated cursor position or if it is determined that connection to the address is impossible, a warning sound or a warning screen is generated and displayed (S5), and the process returns to step S1 without connection. .

  In step S1, if the screen operation is a disconnection command, it is determined whether or not the connection is being made at the address of the cursor position (S6).

  If it is determined that the connection is in progress, the disconnection process is performed on the address designated by the cursor, and a call is displayed beside the address. Furthermore, among all the addresses related to the communication interface (for example, mobile phone, PHS, or wireless LAN) of the address designated by the cursor, which is a feature of the present invention, a call possible address is displayed (S7). ), The process returns to step S1.

  In step S6, if there is no address at the designated cursor position or if it is determined that the address is not connected, a warning sound or a warning screen is generated and displayed without disconnection (S8). Return.

  The above describes the case where a call is allowed / not allowed (out of service area) / calling is displayed next to the address in the line status display table, but the address itself is colored, for example, the call is allowed / not available / during a call. Correspondingly, the address may be displayed in black, red, and green.

  The above is a case of a wireless LAN terminal having a mobile / PHS communication (public wireless network communication) function and a wireless LAN communication (IP communication) function. However, different communication interfaces such as wired or wired and wireless, It is obvious that the present invention can be similarly applied to a case where a three-party call is performed using a terminal having an address system.

The figure explaining the example of the three-party communication using the public / IP common telephone concerning this invention. The figure explaining the outline | summary of a structure of the public / IP common telephone concerning this invention. The figure explaining an example of the speech synthesis circuit of the public / IP common telephone concerning this invention. The figure explaining the example of a display of the line condition table in the one-to-one communication by this invention. The figure explaining the example of a display of the line condition table in the three-party communication by this invention. The flowchart explaining operation at the time of the call origination using the line usage status table by this invention, and a cutting | disconnection. The figure explaining the system block diagram of a general wireless LAN. The figure explaining the hardware block diagram of AP in FIG. The figure explaining the hardware block diagram of the wireless LAN terminal in FIG.

Explanation of symbols

1: Public / IP shared telephone 1A: Information communication terminal unit 1A01: Control unit 1A02: IP wireless unit interface 1A03: Mobile / PHS wireless unit interface 1A04: Data processing / communication processing unit 1A05: Speech synthesis circuit 1A06: Audio input unit 1A07 : Line usage status table 1A08: Telephone book 1A09: Line usage status table management unit 1A10: Display unit 1A11: Operation unit 1B: IP (LAN) radio unit 1C: Mobile / PHS radio unit 2: Access point (AP)
2A: Router unit 2B: Wireless unit 3: Router 4: PC (wired LAN terminal)
5: Internet (IP) network 6: Wireless public network 7: Mobile / PHS
8: IP phone 10: Communication processing unit 10-1: Program memory 10-2: Work memory 11: Antenna 12: RF unit 13: Baseband unit 14: MAC processing unit 15: Upper layer processing unit 16: Terminal interface unit 19 : Bus 20: Communication processing unit 20-1: Program memory 20-2: Work memory 21: Antenna 22: RF unit 23: Baseband unit 24: MAC processing unit 29: Bus 51: Speech decoder 52: D / A conversion 53: Adder 54: A / D converter 55: Speech encoder 50: Speech encoder 56: Adder 101: Wireless LAN terminal 101A: Information communication terminal unit 101B: LAN wireless unit

Claims (2)

The public line telephone function, the wireless LAN IP telephone function, the function of making a call at the same time with different parties using both functions, and the person's voice and the voice received from one party are synthesized to the other party. the function of sending out a function to synthesize an audio received from both of the mating output as voice, and a function of displaying the line usage counterpart terminal in line usage display method lifting Tsuoto voice conference wireless LAN terminal ,
Function of displaying the line usage counterpart terminal, and displaying the wireless LAN terminal which can be connected partner's name,該氏name and phone number associated, the line usage per the telephone number, voice A method of displaying the line usage status of a conference wireless LAN terminal. A radio section for a call via the public wireless circuit, and IP radio unit to call over a wireless LAN, and an information communication terminal unit having Ruoto voice conference function to call different party at the same time as each other using both functions in voice wireless LAN terminal for a conference with,
The information communication terminal unit synthesizes the voice of the person and the voice received from one partner and sends the synthesized voice to the other party, and also synthesizes the voice received from both parties and outputs the voice as a voice; A name of a partner that can be connected to the wireless LAN terminal, a telephone number associated with the name, a display unit that displays a line usage status for each telephone number, a name of the partner that can be connected to the wireless LAN terminal, and the name A telephone line number, a line usage status table describing the line usage status for each telephone number, and a line usage status table management unit for managing the contents of the line usage status table,
The line usage status table management unit stores the line usage status table in which the name of a partner that can be connected to the wireless LAN terminal, the telephone number associated with the name, and the line usage status for each telephone number are described based on the call status. features and be Ruoto voice conference for the wireless LAN terminal to be rewritten.

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