JP5282389B2 - Telephone device and electronic conference device - Google Patents

Description

  The present invention relates to a telephone device connectable to an IP network, and more particularly to a technology of a telephone device suitable for construction of an electronic conference system.

  Patent Document 1 discloses an electronic conference terminal that provides a TV conference service recommended by ITU-T on a PC basis. This teleconference terminal uses video, audio, data, audio, data, frame synchronization signal, and bit allocation signal recommended by the ITU-T H series on the B channel in the unrestricted digital mode of the ISDN line. A network control unit that transmits and receives to / from the PC as multiplexed information without being separated into data, a moving image codec unit that compresses and expands moving images, an audio codec unit that compresses and expands audio, and a PC.

Patent Document 2 discloses a TV conference device that can grasp how the image data transmitted by the device itself is actually displayed on the counterpart device. This TV conference apparatus performs a TV conference with a partner TV conference apparatus via a network. The video conference apparatus includes an imaging unit that images a user, an image encoding unit that encodes user image data captured by the imaging unit, and the encoded image data as first encoded image data. Image transmitting means for transmitting to the TV conference device, image receiving means for receiving the second encoded image data from the counterpart TV conference device, and decoding the first and second encoded image data Image decoding means for generating the first and second decoded image data and display means for displaying the first and second decoded image data are provided.
Japanese Patent Laid-Open No. 7-284077 JP 2006-229456 A

  However, in order to realize a TV conference by the technique described in Patent Document 1 or Patent Document 2, dedicated application software for causing a PC to function as a TV conference terminal is required. Alternatively, a dedicated TV conference terminal that can transmit and receive both audio and video is required. For this reason, the cost for realizing the TV conference increases.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technology of a telephone device that realizes an electronic conference using an existing information terminal.

  In order to solve the above-described problem, in the present invention, a calling telephone device transmits a URI of an information distribution server that distributes information desired to be shown to a call partner to a receiving telephone device, and at the receiving telephone device The URI is received from and transmitted to the information terminal on the calling side. Further, the information terminal on the calling side accesses the URI received from the telephone device on the calling side to download and display the information. On the other hand, the receiving side telephone device receives the URI from the calling side telephone device and transmits it to the receiving side information terminal, and also distributes information desired to be shown to the other party to the calling side telephone device. Send URI. In addition, the information terminal on the called side accesses the URI received from the telephone device on the called side and displays the information.

For example, the onset Ming is a telephone apparatus that can be connected to an IP network,
URI storage means for storing a URI for accessing a predetermined information distribution server;
Including a URI stored in the URI storage means in a call setup request message or a call setup response message to be sent to the call partner, and a first URI sending means for sending the URI to the call partner;
ID information acquisition means for acquiring ID information of a relay device that connects the own telephone device to the IP network,
In the URI storage means,
For each relay device ID information, the URI of the network camera associated with the relay device is stored as the URI of the information distribution server,
The first URI transmission means includes:
The URI stored in the URI storage unit in association with the ID information acquired by the ID information acquisition unit is transmitted to the call partner.

Here, the telephone device is
URI receiving means for receiving a URI from the call partner;
You may further have the 2nd URI transmission means which transmits URI received by the said URI receiving means to the said predetermined | prescribed information terminal.

The electronic conference device of the present invention is an electronic conference device having a plurality of telephone devices that can be connected to the IP network via relay devices, and a plurality of network cameras that are information distribution servers ,
At least one of the telephone devices is
URI storage means for storing the URI of the network camera associated with the relay device for each ID information of the relay device ;
ID information acquisition means for acquiring ID information of the relay device to which the telephone device is connected;
The call setup request message or call setup response message transmitted to the other party, including the ID information associated with the acquired ID information by the acquiring means is stored in the URI storage means URI, the said URI A first URI transmitting means for transmitting to the other party,
At least one other of the telephone devices is
The URI storage means;
The ID information acquisition means;
Said first URI transmitting means;
URI receiving means for receiving a URI from the call partner;
Second URI transmitting means for transmitting the URI received by the URI receiving means to a predetermined information terminal.

  According to the telephone device of the present invention, an electronic conference can be realized using an existing information terminal.

  Embodiments of the present invention will be described below.

[First embodiment]
FIG. 1 is a schematic diagram of an electronic conference system to which the first embodiment of the present invention is applied.

  As shown in the figure, the electronic conference system according to the present embodiment is configured by connecting a plurality of electronic conference apparatuses 1 and at least one information distribution server 2 to an IP network 4.

  The information distribution server 2 is an existing information providing site such as a streaming server that distributes streaming data such as video captured by a camera, a WEB server that distributes a WEB page such as an electronic bulletin board.

  The electronic conference apparatus 1 includes an IP telephone 11 and a browser terminal 12. The browser terminal 12 is an existing information terminal that accesses the information distribution server 2 via the IP network 4 and downloads and displays information such as streaming data and WEB data from the information distribution server 2 as an access destination. The IP telephone 11 establishes a connection to the other party's IP telephone 11 on the IP network 4 and makes a call via this connection. The IP telephone 11 may establish a connection with the other party's IP telephone 11 via the switching device 3 on the IP network 4 or directly without using the switching device 3. A connection may be established with the other party's IP telephone 11.

  In addition, the IP telephone 11 notifies the IP telephone 11 of the other party of the URI (Uniform Resource Identifier) of the information distribution server 2 that distributes the information desired to be shown to the other party, and the URI notified from the IP telephone 11 of the other party. Is notified to the browser terminal 12 of the electronic conference device 1.

  FIG. 2 is a schematic configuration diagram of the IP telephone 11.

  As shown in the figure, the IP telephone 11 includes a network interface unit 111, a handset 112 including a microphone and a speaker, various buttons such as dial keys and function keys, a display unit such as an LCD, and a calling speaker. An operation panel 113, a call control unit 114, a call processing unit 115, a URI storage unit 116, a URI insertion unit 117, a URI extraction unit 118, and a terminal notification unit 119 are provided.

  The network interface unit 111 is an interface for connecting to the IP network 4.

  The call control unit 114 performs call control processing according to a call control protocol such as SIP (Session Initiation Protocol), and establishes a connection with the other party.

  The call processing unit 115 performs transmission processing according to a transmission protocol such as RTP (Realtime Transport Protocol), and transmits / receives call data to / from the other party via the connection established by the call control unit 114.

  The URI storage unit 116 stores at least one URI of the information distribution server 2 that distributes information desired to be shown to the other party as a browser URI. Note that information desired to be shown to the other party can be, for example, user video data captured by a camera, a user homepage, an electronic bulletin board, or the like.

  The URI insertion unit 117 inserts the browser URI stored in the URI storage unit 116 into the call setting request message and the call setting response message generated by the call control unit 114.

  FIG. 3A shows an example of an INVITE message by SIP as a call setting request message in which a browser URI is inserted. FIG. 3B shows an example of a 200 OK message by SIP as a call setup response message in which the browser URI is inserted. In FIGS. 3A and 3B, reference numerals 1171 and 1172 are unique tags provided to describe the URI for browser.

  The URI extracting unit 118 extracts the browser URI from the call setting request message and the call setting response message received by the call control unit 114 from the other party.

  The terminal notification unit 119 notifies the browser URI extracted by the URI extraction unit 118 to the browser terminal 12 of the electronic conference device 1. For example, an e-mail in which the browser URI extracted by the URI extraction unit 118 is described is created, and this e-mail is transmitted to the browser terminal 12 of the electronic conference device 1 by SMTP (Simple Mail Transfer Protocol). Alternatively, a document file in which the URI for the browser extracted by the URI extraction unit 118 is described is created, and this document file is transmitted to the browser terminal 12 of the electronic conference device 1 by FTP (File Transfer Protocol). Alternatively, it may be Microsoft's ActiveX or a proprietary protocol.

  FIG. 4 is a flowchart for explaining the operation of the IP telephone 11.

  When the call control unit 114 receives a call instruction such as off-hook from the user via the operation panel 113 (YES in S101), the call control unit 114 receives a telephone number from the user via the operation panel 113 (S102). In addition, the call control unit 114 instructs the URI insertion unit 117 to specify a browser URI. In response to this, the URI insertion unit 117 displays a list of browser URIs stored in, for example, the URI storage unit 116 on the operation panel 113. Then, designation of the browser URI is received from the user via the operation panel 113 (S103).

  Next, the call control unit 114 generates a call setting request message with the telephone number received in S102 as the destination number, and passes it to the URI insertion unit 117. In response to this, the URI insertion unit 117 inserts the browser URI specified in S103 into the call setting request message and returns it to the call control unit 114. Then, the call control unit 114 transmits the call setting request message in which the URI for browser is inserted by the URI insertion unit 117 to the IP network 4 via the network interface unit 111 (S104). This call setting request message is transmitted to the other party's IP telephone 11 via the IP network 4.

  When the call control unit 114 receives a call setting response message from the IP telephone 11 of the other party via the network interface unit 111 (YES in S105), the call control unit 114 establishes a connection with the IP telephone 11 of the other party. (S106). As a result, the call processing unit 115 transmits / receives call data to / from the other party's IP telephone 11 via this connection. That is, the voice data of the user input to the handset 112 is converted into call data, and transmitted to the call partner's IP telephone 11 via this connection. Also, the call data received from the other party's IP telephone 11 via this connection is converted into voice data and output from the handset 112.

  In addition, the call control unit 114 passes the call setting response message received from the other party's IP telephone 11 to the URI extraction unit 118. In response to this, the URI extraction unit 118 extracts the browser URI from the call setting response message and passes it to the terminal notification unit 119 (S107). In response to this, the terminal notification unit 119 notifies the browser terminal 12 of the electronic conference device 1 of the browser URI extracted from the call setup response message of the IP telephone 11 of the communication partner via the network interface unit 111. (S108). As a result, the browser terminal 12 accesses the information distribution server 2 specified by the browser URI notified from the IP telephone 11 of the electronic conference device 1 according to the user's instruction, and the information on the other party (streaming data, WEB page etc.) can be downloaded and displayed.

  Thereafter, when the call control unit 114 receives a release request message from the IP telephone 11 of the other party, the call control unit 114 returns a release response message, disconnects the connection, and ends the call. Alternatively, when a call termination instruction such as on-hook is received from the user, a release request message is transmitted to the other party's IP telephone 11 to disconnect the connection and terminate the call (S109).

  Further, when the call control unit 114 receives a call setting request message from the IP telephone 11 of the communication partner via the network interface unit 111 (YES in S111), the call control unit 114 outputs a ringing tone from the operation panel 113, and the operation panel 113 is displayed. Then, it waits to receive a response instruction such as off-hook from the user (S112). If a response instruction is accepted from the user (YES in S112), the call control unit 114 passes the call setting request message received from the other party's IP telephone set 11 to the URI extraction unit 118. In response to this, the URI extraction unit 118 extracts the browser URI from the call setting request message and passes it to the terminal notification unit 119 (S113). In response to this, the terminal notification unit 119 notifies the browser terminal 12 of the electronic conference device 1 of the browser URI extracted from the call setting request message of the IP telephone 11 of the other party of communication via the network interface unit 111. (S114). As a result, the browser terminal 12 accesses the information distribution server 2 specified by the browser URI notified from the IP telephone 11 of the electronic conference device 1 according to the user's instruction, and the information on the other party (streaming data, WEB page etc.) can be downloaded and displayed.

  In addition, the call control unit 114 instructs the URI insertion unit 117 to specify a browser URI. In response to this, the URI insertion unit 117 displays a list of browser URIs stored in, for example, the URI storage unit 116 on the operation panel 113. Then, the browser URI is designated from the user via the operation panel 113 (S115).

  Next, the call control unit 114 generates a call setting response message for the call setting request message received from the IP telephone 11 of the other party, and passes it to the URI insertion unit 117. In response to this, the URI insertion unit 117 inserts the browser URI specified in S115 into the call setting response message and returns it to the call control unit 114. Then, the call control unit 114 transmits the call setting response message in which the browser URI is inserted by the URI insertion unit 117 to the IP telephone 11 of the other party of communication via the network interface unit 111 (S116).

  As a result, a connection is established with the other party's IP telephone 11 (S117), and the call processing unit 115 transmits / receives call data to / from the other party's IP telephone 11 via this connection. That is, the voice data of the user input to the handset 112 is converted into call data, and transmitted to the call partner's IP telephone 11 via this connection. Also, the call data received from the other party's IP telephone 11 via this connection is converted into voice data and output from the handset 112.

  Thereafter, when the call control unit 114 receives a release request message from the IP telephone 11 of the other party, the call control unit 114 returns a release response message, disconnects the connection, and ends the call. Alternatively, when a call termination instruction such as on-hook is received from the user via the operation panel 113, a release request message is transmitted to the IP telephone 11 of the other party, the connection is disconnected, and the call is terminated (S118).

  FIG. 5 is a sequence diagram for explaining an operation example of the electronic conference system to which the first embodiment of the present invention is applied.

  Here, the IP telephone “A” 11 and the browser terminal “A” 12 are the electronic conferencing apparatus 1 on the transmission side, and the information distribution server “A” 2 distributes information that the user on the transmission side wants to show. 2. In addition, the IP telephone “B” 11 and the browser terminal “B” 12 are the incoming-side electronic conference apparatus 1, and the information distribution server “B” 2 distributes information that the incoming-side user wants to show. It is.

  When the IP telephone “A” 11 receives a call instruction from the user on the calling side (S131), the telephone number of the IP telephone “B” 11 of the other party is input, and further information distribution for distributing information desired to be shown to the other party Wait until the URI of the server “A” 2 is designated (S132, S133). Then, the URI of the information distribution server “A” 2 is inserted as the browser URI into the call setting request message having the telephone number of the IP telephone “B” 11 as the destination number, and this call setting request message is transmitted. This call setting request message is transmitted to the IP telephone “B” 11 via the switching apparatus 3 (S134).

  Next, when receiving the call setting request message, IP phone “B” 11 waits for a response instruction from the user on the called side (S135). If the response instruction is accepted, the browser URI is extracted from the call setting request message and notified to the browser terminal “B” 12 (S136). In addition, the IP telephone “B” 11 waits for the URI of the information distribution server “B” 2 that distributes information desired to be shown to the other party to be called from the user on the receiving side (S137). Then, the URI of the information distribution server “B” 2 is inserted as a browser URI into the call setting response message for this call setting request message, and this call setting response message is transmitted. This call setting response message is transmitted to the IP telephone “A” 11 via the exchange device 3 (S138).

  Upon receiving the call setting response message, IP phone “A” 11 extracts the browser URI from this call setting response message and notifies browser terminal “A” 12 (S139).

  Further, when the IP telephone “A” 11 receives the call setting response message, a connection is established between the IP telephone “A” 11 and the IP telephone “B” 11, and the call is disclosed via this connection. (S140).

  When the browser terminal “B” 12 receives an instruction to access the browser URI notified from the IP telephone “B” 11 from the user on the receiving side (S141), the information distribution specified by the browser URI is distributed. The server “A” 2 is accessed (S 142), and information is downloaded from the information distribution server “A” 2 and displayed (S 143).

  Similarly, when the browser terminal “A” 12 receives an access instruction to the browser URI notified from the IP telephone “A” 12 from the user on the calling side (S144), the information specified by the browser URI The distribution server “B” 2 is accessed (S145), and information is downloaded from the information distribution server “B” 2 and displayed (S146).

  In the present embodiment, in order to make the explanation easy to understand, the access instruction in S141 has been described in the detection after the call in S140 is established, but the present invention is not limited to this. For example, it may be accessed while receiving a call setting request in S134.

  The first embodiment of the present invention has been described above.

  In the present embodiment, the originating IP telephone 11 transmits to the incoming IP telephone 11 the URI (browser URI) of the information distribution server 2 that distributes the information desired to be provided to the other party, and this called party The browser URI is received from the IP telephone 11 and transmitted to the browser terminal 12 on the transmission side. The calling browser terminal 12 accesses the browser URI received from the calling IP phone 11 to download and display information.

  On the other hand, the incoming IP phone 11 receives the browser URI from the outgoing IP phone 11 and transmits it to the incoming browser terminal 12, and also provides the outgoing IP phone 11 with information to be provided to the other party. The URI of the distribution server 2 (browser URI) is transmitted. In addition, the browser terminal 12 on the receiving side accesses the browser URI received from the IP phone 11 on the receiving side, downloads and displays the information.

  Therefore, according to the present embodiment, an electronic conference can be realized with a simple configuration in which the IP telephone 11 and the existing browser terminal 12 are used in combination.

  In the present embodiment, the originating IP telephone 11 includes the browser URI in the call setting request message (for example, INVITE message) and transmits it to the terminating IP telephone 11, and at the same time, the terminating IP telephone 11 The browser URI is extracted from the received call setting response message (for example, a 200 OK message) and transmitted to the browser terminal 12 on the transmission side.

  Similarly, the called IP telephone 11 extracts the browser URI from the call setting request message received from the calling IP telephone 11 and transmits it to the called browser terminal 12 and also sends a call setting response message (for example, (200 OK message) includes the browser URI and transmits it to the IP telephone 11 on the calling side.

  By doing so, there is no need to send and receive a dedicated packet for exchanging the browser URI between the originating IP telephone 11 and the terminating IP telephone 11. For this reason, the configuration adopted in the IP telephone 11 for exchanging the browser URI can be simplified. Also, the occurrence of communication traffic can be reduced.

  Further, in the present embodiment, the IP telephone 11 transmits the browser URI received from the other party to the browser terminal 12 using SMTP, FTP, Microsoft ActiveX, or a unique dedicated protocol. Therefore, it is not necessary to adopt a special configuration for the browser terminal 12 in order to receive the browser URI.

  In the present embodiment, the URI insertion unit 117 selects one of the browser URIs stored in the URI storage unit 116 in accordance with a user instruction input via the operation panel 113, and calls the call. It is inserted into the call setup request message and call setup response message generated by the control unit 114. However, the present invention is not limited to this. For example, when there is one browser URI stored in the URI storage unit 116, the browser URI is used as a call setting request message and a call setting response message generated by the call control unit 114 without receiving an instruction from the user. It may be inserted.

  In this embodiment, wired terminals are used as the IP telephones 11 on the outgoing side and the incoming side. However, wireless IP telephones may be used.

[Second Embodiment]
FIG. 6 is a schematic diagram of an electronic conference system to which the second embodiment of the present invention is applied. Here, the same components as those in the first embodiment shown in FIG.

  As shown in the figure, the electronic conference system of the present embodiment is different from the electronic conference system of the first embodiment shown in FIG. 1 in that an electronic conference device 1A is provided instead of the electronic conference device 1. is there. The electronic conference apparatus 1A includes an IP telephone 11A and a browser terminal 12.

  The IP telephone 11A establishes a connection on the IP network 4 with the other party's IP telephone 11A, and makes a call via this connection. As with the IP telephone 11 of the first embodiment, the IP telephone 11A may establish a connection with the other party's IP telephone 11A via the switching device 3 on the IP network 4. Alternatively, a connection may be established directly with the other party's IP telephone 11A without going through the switching device 3.

  Further, the IP telephone 11A monitors the access destination of the browser terminal 12 of the own electronic conference device 1A. Then, the browser terminal 12 of the electronic conference device 1A notifies the URI of the information distribution server 2 being accessed to the IP phone 11A of the other party of the call, and the URI notified from the IP phone 11A of the other party of the electronic conference device 1A The browser terminal 12 is notified.

  FIG. 7 is a schematic configuration diagram of the IP telephone 11A.

  As shown in the figure, the IP telephone 11A of the present embodiment is different from the IP telephone 11 of the first embodiment shown in FIG. 2 in that a switching hub 120, a connection unit 121, and an access destination monitoring unit 122 are added. It is that.

  The switching hub 120 is a switching hub that relays between the own IP telephone 11A, the browser terminal 12 of the own electronic conference device 1A, and the IP network 4, and is connected to the network interface unit 111, the connection unit 121, and the IP network 4. Is done. The switching hub 120 transmits to the network interface unit 111 when the destination of the received packet is the local IP telephone 11A, and transmits to the connection unit 121 when the destination is the browser terminal 12 of the local electronic conference device 1A. If it is a terminal other than the browser terminal 12 of the IP telephone 11A and the own electronic conference device 1A, it is transmitted to the IP network 4.

  The connection unit 121 is a physical interface (connector) for connecting the browser terminal 12 of the electronic conference device 1A.

  The access destination monitoring unit 122 analyzes the access request message transmitted from the connection unit 121 to the switching hub 120, and acquires the URI of the information distribution server 2 that is the access destination of the browser terminal 12 of the own electronic conference device 1A. The acquired URI is stored in the URI storage unit 116 as a browser URI.

  FIG. 8 shows an example of a GET message based on HTTP (Hypertext Transfer Protocol) as an access request message. Here, reference numeral 1221 is a URI indicating an access destination.

  FIG. 9 is a flowchart for explaining the operation of the IP telephone 11A.

  When the call control unit 114 receives a call instruction such as off-hook from the user via the operation panel 113 (YES in S201), the call control unit 114 performs S102 to S109 in FIG. 4 (S202). However, in S103 of FIG. 4, instead of accepting the browser URI specification from the user, the access destination monitoring unit 122 sets the latest URI stored in the URI storage unit 116 as the browser URI.

  When the call control unit 114 receives a call setting request message from the other party's IP telephone 11 via the network interface unit 111 (YES in S211), the call control unit 114 performs S112 to S118 in FIG. 4 (S212). However, in S113 in FIG. 4, instead of accepting the browser URI specification from the user, the access destination monitoring unit 122 sets the latest URI stored in the URI storage unit 116 as the browser URI.

  Further, when a packet transmitted from the connection unit 121 to the switching hub 120 is generated (YES in S221), the access destination monitoring unit 122 checks whether this packet is a packet for storing an access request message (S222). ). If the packet is for storing an access request message (YES in S222), the access destination monitoring unit 122 extracts the URI of the access destination from this access request message (S223), and uses this URI as the URI for the browser as the URI storage unit 116. (S224).

  Next, an operation example of the electronic conference system to which the second embodiment of the present invention is applied will be described.

  In the present embodiment, each time the browser terminal 12 accesses the information distribution server 2, the URI of the information distribution server 2 is registered as the browser URI in the IP telephone 11A of the same electronic conference apparatus 1A as the browser terminal 12. . In addition, in step S133 and S137 in FIG. 5, the IP phone 11A on the transmission side and the reception side notifies the other party of the latest browser URI registered in its own device instead of accepting the browser URI specification from the user. It is included in the call setting request message and the call setting response message as the browser URI. Other operations are the same as the operation example of the first embodiment shown in FIG.

  The second embodiment of the present invention has been described above.

  In the present embodiment, in the IP telephone 11A, the access destination monitoring unit 122 causes the access destination URI of the browser terminal 12 to be stored in the URI storage unit 116 as a browser URI. Then, the latest browser URI stored in the URI storage unit 116 is inserted into the call setting request message or call setting response message by the URI inserting unit 117 and transmitted to the other party. Therefore, according to the present embodiment, it is not necessary for the user to specify the browser URI to be notified to the call partner. In addition, the same information as the user was viewing can be shown to the other party. Other effects are the same as those of the first embodiment.

[Third embodiment]
FIG. 10 is a schematic diagram of an electronic conference system to which the third embodiment of the present invention is applied. Here, the same components as those in the first embodiment shown in FIG.

  As shown in the figure, the electronic conference system of this embodiment includes a relay device 6A such as a hub (HUB) that connects a wired terminal to the IP network 4 and a wireless access point (AP) that connects the wireless terminal to the IP network 4. A relay device 6B, a network camera 5 installed in the vicinity of each of the relay devices 6A, 6B, an electronic conference device 1B connected to the relay device 6A, a wireless IP telephone 11C connected to the relay device 6B, Have

  The network camera 5 is an information distribution server that takes an image of a user of a terminal connected to the relay devices 6A and 6B located in the vicinity of the own network camera 5 and distributes the video as streaming data on the IP network 4.

  The electronic conference apparatus 1B includes an IP telephone 11B and a browser terminal 12. Here, the browser terminal 12 is connected to the relay device 6A, and is connected to the IP network 4 via the relay device 6A.

  FIG. 11 is a schematic configuration diagram of the IP telephone 11B. Here, the same reference numerals are given to the same components as those of the IP telephone 11 of the first embodiment shown in FIG.

  As shown in the figure, the IP phone 11B is different from the IP phone 11 of the first embodiment shown in FIG. 2 in that a URI determination table storage unit 131, an ID information acquisition unit 132, and a URI determination unit 133 are added. It is that you are.

  The URI determination table storage unit 131 stores a correspondence relationship between the relay devices 6A and 6B and the network camera 5. FIG. 12 is a diagram schematically showing the registered contents of the URI determination table storage unit 131. As illustrated, a record 1310 is registered in the URI determination table storage unit 131 for each of the relay apparatuses 6A and 6B. The record 1310 has a field 1311 for registering ID information of the relay apparatuses 6A and 6B and a field 1312 for registering the URI of the network camera 5 installed in the vicinity of the relay apparatuses 6A and 6B. The field 1311 includes a subfield 13111 for registering the MAC address of the relay device 6A when the target relay device is a relay device 6A such as a hub, and the target relay device is a relay such as a wireless access point. In the case of the device 6B, a subfield 13112 for registering an SSID (Service Set Identifier) of the relay device 6B is included.

  The ID information acquisition unit 132 receives and acquires ID information (MAC address in the case of the relay device 6A, SSID of the relay device 6B) notified from the nearest relay devices 6A and 6B connected to the own IP telephone 11B.

  The URI determination unit 133 refers to the URI determination table storage unit 131 and determines the browser URI based on the ID information acquired by the ID information acquisition unit 132. Specifically, when the acquired ID information is a MAC address, the record 1310 in which the MAC address is registered in the subfield 13111 is searched, and the URI of the network camera 5 registered in the field 1312 of the record 1310 is obtained. Determine the browser URI. If the acquired ID information is an SSID, the record 1310 in which the SSID is registered in the subfield 13112 is searched, and the URI of the network camera 5 registered in the field 1312 of the record 1310 is determined as the browser URI. To do. Then, the URI determination unit 133 updates the browser URI stored in the URI storage unit 116 to the browser URI determined as described above.

  FIG. 13 is a flowchart for explaining the operation of the IP telephone 11B.

  When a link is established with the nearest relay device 6A via the network interface unit 111 (YES in S301), the ID information acquisition unit 132 provides ID information (MAC address) notified by the relay device 6A. Obtain (S302). The URI determination unit 133 searches the record 1310 from the URI determination table storage unit 131 using the ID information acquired by the ID information acquisition unit 132 as a key, and the URI of the network camera 5 registered in the field 1312 of the record 1310. Is determined as the browser URI. Then, the browser URI stored in the URI storage unit 116 is updated to the determined browser URI (S303).

  Thereafter, when the call control unit 114 receives a call instruction such as off-hook from the user via the operation panel 113 (YES in S311), the call control unit 114 performs S102 to S109 in FIG. 4 (S312). However, in S103 of FIG. 4, instead of accepting the browser URI designation from the user, the latest browser URI stored in the URI storage unit 116 by the URI determination unit 133 is used.

  When the call control unit 114 receives a call setting request message from the other party's IP telephone 11 via the network interface unit 111 (YES in S321), the call control unit 114 performs S112 to S118 in FIG. 4 (S322). However, in S113 of FIG. 4, instead of accepting the browser URI designation from the user, the latest browser URI stored in the URI storage unit 116 by the URI determination unit 133 is used.

  If the link with the nearest relay device 6A is changed (YES in S331), the ID information acquisition unit 132 returns to S302 and updates the browser URI stored in the URI storage unit 116.

  FIG. 14 is a schematic configuration diagram of the wireless IP telephone 11C. Here, the same reference numerals are given to the same components as the IP telephone 11B shown in FIG.

  As shown in the figure, the wireless IP telephone 11C is different from the IP telephone 11B shown in FIG. 11 in that a wireless network interface 134 that is wirelessly connected to the relay device 6B is used instead of the network interface 111 that is wired to the relay device 6A. This is that the URI extraction unit 118 and the terminal notification unit 119 are omitted. Other configurations are the same as those of the IP telephone 11B shown in FIG.

  The operation of the wireless IP telephone 11C is similar to that shown in FIG. 13 except that the ID information acquired from the nearest relay device 6B in S302 of FIG. 13 is the SSID and that S321 to S322 of FIG. 13 are omitted. The operation flow of the IP telephone 11B shown in FIG.

  FIG. 15 is a sequence diagram for explaining an operation example of the electronic conference system to which the third embodiment of the present invention is applied.

  Here, the wireless IP telephone 11C is the calling side, and the electronic conference apparatus 1B is the receiving side. Further, the network camera “A” 5 is the network camera 5 installed in the vicinity of the relay apparatus 6B, and the network camera “B” 5 is the network camera 5 installed in the vicinity of the relay apparatus 6A.

  When a link is established with the nearest relay device 6B (S351), the wireless IP telephone 11C acquires the SSID notified from the relay device 6B as ID information (S352). Based on this ID information, the URI of the network camera “A” 5 installed in the vicinity of the relay device 6B is specified, and this URI is registered as a browser URI.

  Further, when a link is established with the nearest relay device 6A (S353), the IP telephone 11B acquires a MAC address notified from the relay device 6A as ID information (S354). Based on this ID information, the URI of the network camera “B” 5 installed in the vicinity of the relay device 6A is specified, and this URI is registered as a browser URI.

  When the wireless IP phone 11C receives a call instruction from the user on the calling side (S355), the wireless IP phone 11C waits for the telephone number of the other party's IP phone 11B to be input (S356). Then, the URI of the network camera “A” 5 is inserted as the browser URI into the call setting request message having the telephone number of the IP telephone 11B as the destination number, and this call setting request message is transmitted. This call setting request message is transmitted to the IP telephone 11B via the relay devices 6B and 6A (S357).

  Next, when receiving the call setting request message, IP telephone 11B waits for a response instruction from the incoming user (S358). If the response instruction is accepted, the browser URI is extracted from the call setting request message and notified to the browser terminal 12 of the own electronic conference device 1B (S359). The IP telephone 11B inserts the URI of the network camera “B” 5 as the browser URI in the call setting response message for the call setting request message, and transmits this call setting response message. The call setting response message is transmitted to the wireless IP telephone 11C via the relay devices 6A and 6B (S360).

  When the wireless IP telephone 11C receives the call setting response message, a connection is established between the wireless IP telephone 11C and the IP telephone 11B, and a call is started via this connection (S361). In the wireless IP telephone 11C, the URI extraction unit 118 and the terminal notification unit 119 are omitted. For this reason, the browser URI inserted in the call setting response message is ignored without being extracted.

  When the browser terminal 12 receives an instruction to access the browser URI notified from the IP telephone 11B from the user on the receiving side (S362), the browser terminal 12 accesses the network camera “A” 5 specified by the browser URI. (S363). Then, the video of the user on the transmission side is downloaded from the network camera “A” 5 and displayed (S364).

  The third embodiment of the present invention has been described above.

  In the present embodiment, the IP telephone 11B and the wireless IP telephone 11C have the URI of the network camera 5 installed in the vicinity of the nearest (link destination) relay device 6A, 6B stored in the URI storage unit 116 as a browser URI. Remembered. Then, the browser insertion URI stored in the URI storage unit 116 is inserted into the call setting request message or the call setting response message by the URI inserting unit 117 and transmitted to the call partner. Therefore, according to the present embodiment, it is not necessary for the user to specify the browser URI to be notified to the call partner. In addition, since the URI of the network camera 5 set in the vicinity of the user is automatically set as the URI for the browser, the user's video captured by the network camera 5 can be shown to the other party. Other effects are the same as those of the first embodiment.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the gist. For example, the configuration of the IP telephones 11, 11A, 11B and the wireless IP telephone 11C may be implemented by hardware using an integrated logic IC such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array). Alternatively, it may be executed in software by a computer such as a DSP (Digital Signal Processor) or a PC (Personal Computer).

  In each of the above embodiments, the IP telephone has been described as an example, but the present invention is not limited to this. As long as an interface for notifying the browser terminal 12 of the URI via the IP network 4 is provided, the present invention can be similarly applied to a mobile phone or a normal fixed phone.

FIG. 1 is a schematic diagram of an electronic conference system to which the first embodiment of the present invention is applied. FIG. 2 is a schematic configuration diagram of the IP telephone 11. FIG. 3A is a diagram illustrating an example of an SIP INVITE message as a call setting request message in which the browser URI is inserted, and FIG. 3B is a call setting response message in which the browser URI is inserted. FIG. 5 is a diagram showing an example of a 200 OK message by SIP. FIG. 4 is a flowchart for explaining the operation of the IP telephone 11. FIG. 5 is a sequence diagram for explaining an operation example of the electronic conference system to which the first embodiment of the present invention is applied. FIG. 6 is a schematic diagram of an electronic conference system to which the second embodiment of the present invention is applied. FIG. 7 is a schematic configuration diagram of the IP telephone 11A. FIG. 8 is a diagram illustrating an example of an HTTP GET message as an access request message. FIG. 9 is a flowchart for explaining the operation of the IP telephone 11A. FIG. 10 is a schematic diagram of an electronic conference system to which the third embodiment of the present invention is applied. FIG. 11 is a schematic configuration diagram of the IP telephone 11B. FIG. 12 is a diagram schematically showing the registered contents of the URI determination table storage unit 131. FIG. 13 is a flowchart for explaining the operation of the IP telephone 11B. FIG. 14 is a schematic configuration diagram of the wireless IP telephone 11C. FIG. 15 is a sequence diagram for explaining an operation example of the electronic conference system to which the third embodiment of the present invention is applied.

Explanation of symbols

  1: electronic conference device, 1A-1B: electronic conference device, 2: information distribution server, 3: switching device, 4: IP network, 5: network camera, 6A-6B: relay device, 11: IP telephone, 11A-11B : IP phone, 11C: wireless IP phone, 12: browser terminal, 111: network interface unit, 112: handset, 113: operation panel, 114: call control unit, 115: call processing unit, 116: URI storage unit, 117: URI insertion unit, 118: URI extraction unit, 119: terminal notification unit, 120: switching hub, 121: connection unit, 122: access destination monitoring unit, 131: URI determination table storage unit, 132: ID information acquisition unit, 133: URI decision part

Claims (4)

A telephone device connectable to an IP network,
URI storage means for storing a URI for accessing a predetermined information distribution server;
Including a URI stored in the URI storage means in a call setup request message or a call setup response message to be sent to the call partner, and a first URI sending means for sending the URI to the call partner;
ID information acquisition means for acquiring ID information of a relay device that connects the own telephone device to the IP network,
In the URI storage means,
For each relay device ID information, the URI of the network camera associated with the relay device is stored as the URI of the information distribution server,
The first URI transmission means includes:
A telephone device characterized in that the URI stored in the URI storage means in association with the ID information acquired by the ID information acquisition means is transmitted to the call partner. The telephone device according to claim 1 ,
URI receiving means for receiving a URI from the call partner;
The telephone apparatus further comprising: a second URI transmitting unit that transmits the URI received by the URI receiving unit to the predetermined information terminal. The telephone device according to claim 2 ,
The URI receiving means includes:
Extracting the URI received from the call partner from the call setup response message received from the call partner or the call setup request message received from the call partner as a response to the call setup request message transmitted to the call partner. A telephone device characterized by. An electronic conference device having a plurality of telephone devices that can be connected to an IP network through relay devices, and a plurality of network cameras that are information distribution servers,
At least one of the telephone devices is
URI storage means for storing the URI of the network camera associated with the relay device for each ID information of the relay device;
ID information acquisition means for acquiring ID information of the relay device to which the telephone device is connected;
Including the URI stored in the URI storage means in association with the ID information acquired by the ID information acquisition means in the call setting request message or call setting response message to be transmitted to the other party, the URI A first URI transmitting means for transmitting to the other party,
At least one other of the telephone devices is
The URI storage means;
The ID information acquisition means;
Said first URI transmitting means;
URI receiving means for receiving a URI from the call partner;
An electronic conferencing apparatus comprising: a second URI transmitting unit that transmits the URI received by the URI receiving unit to a predetermined information terminal.

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