WO2003056798A1 - Systeme commutateur et procede d'enregistrement de communications - Google Patents
Systeme commutateur et procede d'enregistrement de communications Download PDFInfo
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- WO2003056798A1 WO2003056798A1 PCT/JP2002/013496 JP0213496W WO03056798A1 WO 2003056798 A1 WO2003056798 A1 WO 2003056798A1 JP 0213496 W JP0213496 W JP 0213496W WO 03056798 A1 WO03056798 A1 WO 03056798A1
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- WIPO (PCT)
- Prior art keywords
- call
- communication terminal
- control device
- communication
- call control
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42221—Conversation recording systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
- H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/20—Aspects of automatic or semi-automatic exchanges related to features of supplementary services
- H04M2203/205—Broadcasting
Definitions
- the present invention relates to, for example, an exchange system for exchanging voice calls between communication terminals via the Internet, a LAN, or the like, and a call recording method for recording the contents of the calls. It can record calls.
- the Internet has been used as a network for transmitting and receiving character information and image information. Recently, however, attention has been paid to Internet phones that transmit voice information using the Internet. This is because they have the advantage of being able to talk to overseas parties at low rates, for example, without being restricted by the fare system that is proportional to the conventional distance.
- the telephone network was a dedicated network for transmitting voice data, but the IP (Internet Protocol) network is responsible for transmitting not only voice data but also other data.
- IP Internet Protocol
- the conversation may be unnatural due to the transmission delay of voice data. Therefore, it is required to avoid delay in receiving voice data so that voice data of a call can be transmitted in real time.
- PBX Primary Branch Exchange
- PBX One of the services of PBX is call recording.
- voice data of a call between telephone terminals connected to a call is recorded in a PBX or an external storage medium connected to the PBX.
- a system for recording a telephone call of an Internet telephone is disclosed in Japanese Patent Application Laid-Open No. 2000-200123.
- an Internet telephone device connected to an IP network and a PSTN (Public Switched Telephone Network) network transmits downstream voice data transmitted from the IP network to the pSTN network and transmits the data from the PSTN network.
- the upstream voice data transmitted to the IP network is transmitted to the IP network, and the attached call recording device combines the downstream voice data transmitted from the IP network and the upstream voice data transmitted from the PSTN network. Accumulate.
- PSTN Public Switched Telephone Network
- the switching system shown in FIG. 1 can be configured.
- the system includes a call control device 6 having a voice storage database (DB) 7, communication terminals 2 and 4, a network 8 such as the Internet LAN, and the like, and transmits received packets according to the destination IP address. Switches 1, 3, and 5.
- DB voice storage database
- Switches 1, 3, and 5 check the destination IP address of the received bucket against the internal address table, and send out the packet to the port to which the destination communication terminal is connected.
- the communication terminals 2 and 4 are telephone terminals such as Internet telephones and IP telephones connected to the network.
- the call control device 6 manages a call connection state of a communication terminal connected to the network, such as during a call, and exchanges bidirectional voice data of the call between the communication terminals during the call connection. For example, the voice data from the communication terminal 2 is exchanged with the communication terminal 4 and vice versa. And The two-way audio data is mixed and stored in the voice storage database 7.
- the network 8 is an IP network such as the Internet or a LAN (Local Area Network) N IP—Internet Protocol-Virtual Private Network (VPN).
- IP Internet Protocol-Virtual Private Network
- the switches 1, 3, and 5 may be devices having a router function of performing routing based on an IP address depending on the type of the network 8.
- Symbols “9” and “10” in FIG. 1 indicate a voice path between communication terminals 2 and 4 when a call is connected in this switching system, and voice path 9 is transmitted from communication terminal 4.
- the voice path from when the voice data exchanged by the call control device 6 is received by the communication terminal 2 is shown, and the voice path 10 shows the reverse voice path.
- a call connection request is sent to the call connection device 6 by the communication terminal 2 dialing the other party's communication terminal 4 or the like.
- the call connection device 6 determines that the communication terminal 4 can receive, the call connection device 6 notifies the communication terminal 4 of a call connection request from the communication terminal 2.
- preparations necessary for a call connection between the communication terminal 2 and the communication terminal 4 are performed. For example, after negotiating and setting terminal capabilities such as a voice codec, a call connection state, that is, a call Is possible.
- the call control device 6 enables bi-directional voice data exchange between the communication terminals 2 and 4 (see voice paths 9 and 10) to enable a call between the communication terminals, and at the time of the exchange, voice communication between the communication terminals. Perform mixing, store voice data of the call in the voice storage database 7, and record the call.
- a two-way voice path is configured to always pass through the call control device 6 in order to realize call recording, and thus the following problem occurs.
- the call control device 6 sends the communication terminals 2, 4 A large number of router switches will intervene in the network 8 until this time, and it will take a considerable time for the voice data transmitted from the call control device 6 to be received by each of the communication terminals 2 and 4. Become. As a result, the time interval between the transmission of the voice data and the reception of the voice data becomes longer, and the call between the communication terminals 2 and 4 becomes unnatural such that the voice of the other party can be heard with a delay. It should be noted that even if a network operator designs an optimal route in the network 8 to avoid this, there is a certain limit to the improvement.
- the call control device 6 exchanges voice data as described above, the number of communication terminals that can be managed by the call control device 6 is reduced due to the performance (processing capability) of the call control device 6. Disclosure of the invention
- An object of the present invention is to provide a switching system and a call recording method capable of recording a call without causing a delay in receiving communication data.
- the switching system is a switching system for connecting a plurality of communication terminals via a network through a call control device having a call recording function, wherein the plurality of communication terminals are: Generating means for generating a plurality of identical voice data during call connection, transmitting one of the generated plurality of identical voice data to the other party's communication terminal as voice data for a call; Transmitting means for transmitting the call data as voice data for call recording to the call control device, wherein the call control device notifies the plurality of communication terminals of a destination address of the voice data for call recording. And a mixing storage means for mixing and storing voice data for call recording transmitted from each of the plurality of communication terminals to the destination address. .
- a call recording method is a call recording method in a switching system that connects a plurality of communication terminals via a network through a call control device having a call recording function,
- the call control device the plurality of communications
- a generating step of each of the plurality of communication terminals generating a plurality of the same voice data during a call connection;
- the communication terminals each transmit one of the plurality of identical voice data generated in the generation step to the other communication terminal as voice data for a call, and the other as voice data for call recording.
- the switching system is a switching system for connecting a plurality of communication terminals via a network via a call control device having a call recording function, wherein the plurality of communication terminals are A first acquisition means for acquiring a multicast address, and forming a voice path by multicast for transmitting and receiving voice data to and from the other party's communication terminal based on the obtained multicast address. And a notifying means for notifying the plurality of communication terminals of the multicast address, and multicasting voice data transmitted by multicast from each of the plurality of communication terminals. A second acquisition means for participating and acquiring the audio data, and a mixer for mixing and storing the acquired audio data. And a grayed storage means.
- a call recording method is a call recording method in a switching system for connecting a plurality of communication terminals via a network via a call control device having a call recording function, A notification step in which the call control device notifies the plurality of communication terminals of a multicast address; and a first obtaining step in which each of the plurality of communication terminals obtains a multicast address notified from the call control device. And a multicast for transmitting and receiving voice data to and from the other communication terminal based on the multicast address obtained in the first obtaining step.
- Forming a voice path according to the following; a second obtaining step in which the call control device obtains voice data transmitted by multicast from each of the plurality of communication terminals by participating in multicast; and the call control device.
- the switching system is a switching system for connecting a plurality of communication terminals via a network via a call control device having a call recording function, wherein the plurality of communication terminals are A buffer means for temporarily storing voice data to be transmitted to the other party's communication terminal or a voice data received from the other party's communication terminal during the call connection; and a buffer means for storing the voice data after the call connection is disconnected.
- Transmission means for transmitting the voice data to the call control device as voice data for call recording, wherein the call control device transmits the voice data for call recording to the plurality of communication terminals.
- Notification means for notifying an address and a communication terminal address to which the voice data for a call is to be transmitted; and transmitting to each of the plurality of communication terminals to the destination address.
- a mixing accumulating means for accumulating mixes the audio data for call recording coming being.
- a call recording method is a call recording method in an exchange system for connecting a plurality of communication terminals via a network through a call control device having a call recording function, A notification step of notifying the plurality of communication terminals of a destination address of voice data for call recording and a communication terminal address of a destination of voice data for voice communication to the plurality of communication terminals; and Respectively, temporarily storing, in a buffer means, voice data to be transmitted to the other party's communication terminal or voice data received from the other party's communication terminal during the call connection; and After disconnecting the call connection, the voice control unit stores the voice data stored in the buffer means in the storing step as voice data for call recording.
- the switching system is a switching system for connecting a plurality of communication terminals via a network via a call control device having a call recording function, wherein the plurality of communication terminals Buffer means for temporarily storing voice data transmitted to the communication terminal of the other party during call connection and voice data received from the communication terminal of the other party; and storing the voice data in the buffer means after the disconnection of the call connection.
- the call control device comprises a plurality of communication terminals.
- a communication address for notifying the destination address of the voice data for call recording and the address of the communication terminal to which the voice data for call is to be transmitted.
- a call recording method is a call recording method in an exchange system for connecting a plurality of communication terminals via a network through a call control device having a call recording function, A notification step for notifying the one of the plurality of communication terminals of a destination address of voice data for call recording and a communication terminal address of a destination of voice data for voice communication to the one of the plurality of communication terminals; Storing the voice data to be transmitted to the communication terminal of the other party during the call connection and the voice data received from the communication terminal of the other party temporarily in the buffer means; and A mixing step of mixing audio data stored in the buffer means after the disconnection; and the one communication terminal includes: Transmitting the voice data mixed in step (a) to the call control device as voice data for call recording; and the call control device transmits the voice for call recording transmitted from the one communication terminal to the destination address. And accumulating data.
- Figure 1 is a diagram showing the voice path in a conventional switching system
- FIG. 2 is a configuration diagram of an exchange system according to Embodiment 1 of the present invention.
- FIG. 3 is a diagram illustrating an address management table according to the first embodiment of the present invention.
- FIG. 4 is a diagram illustrating a table held by a user data voice storage database according to the first embodiment of the present invention.
- FIG. 5 is a sequence diagram showing the operation of the switching system according to the first embodiment of the present invention.
- FIG. 6A is a diagram showing a data structure of a connection request message according to Embodiment 1 of the present invention.
- FIG. 6B is a diagram showing a data structure of a connection response message according to Embodiment 1 of the present invention.
- FIG. 7 is a diagram illustrating a voice path of the switching system according to the first embodiment of the present invention.
- FIG. 8 is a configuration diagram of the switching system according to the second embodiment of the present invention.
- FIG. 9 is a diagram showing a multicast address management table according to the second embodiment of the present invention.
- FIG. 10 is a diagram showing a table held by a user data voice accumulation database in Embodiment 2 of the present invention.
- FIG. 11 is a sequence diagram showing the operation of the switching system according to the second embodiment of the present invention.
- FIG. 12A is a diagram showing a data structure of a connection request message according to Embodiment 2 of the present invention.
- FIG. 12B is a diagram showing a data structure of a connection response message according to Embodiment 2 of the present invention.
- FIG. 13 is a diagram showing a voice path of the switching system according to the second embodiment of the present invention
- FIG. 14 is a configuration diagram of the switching system according to the third embodiment of the present invention
- FIG. 15 is a sequence diagram illustrating an operation of the switching system according to the third embodiment of the present invention.
- FIG. 16 is a diagram showing a voice path of the switching system according to the third embodiment of the present invention.
- FIG. 17 is a diagram showing a table held by a user data voice storage database in the third embodiment of the present invention.
- FIG. 18 is a configuration diagram of the switching system according to the fourth embodiment of the present invention.
- FIG. 19 is a sequence diagram illustrating an operation of the switching system according to the fourth embodiment of the present invention.
- FIG. 20 is a diagram showing a voice path of the switching system according to the fourth embodiment of the present invention.
- FIG. 21 is a diagram showing a table held by the user data voice accumulation data base in the fourth embodiment of the present invention.
- a communication terminal creates two identical voice packets, transmits one to a call control device, and directly transmits the other to a communication terminal of the other party.
- this switching system includes a call controller 150 having a database for storing user data and voice (hereinafter referred to as “user data voice storage database”) 160, and a network 170 Communication terminals 1 1 0 and 1 3 0 that make a call via Switches 100, 120, and 140, and the call control device 150 and the communication terminals 110, 130 are connected to the network 170 via the switches 100, 120, and 140. ing.
- a call controller 150 having a database for storing user data and voice (hereinafter referred to as “user data voice storage database”) 160, and a network 170 Communication terminals 1 1 0 and 1 3 0 that make a call via Switches 100, 120, and 140, and the call control device 150 and the communication terminals 110, 130 are connected to the network 170 via the switches 100, 120, and 140. ing.
- Switches 100, 120, and 140 compare the destination IP address of the received packet with an internal address table, and send a bucket to the port to which the destination communication terminal is connected.
- the communication terminals 110, 130 are communication means 111, 131, which perform all processing related to transmission / reception (communication) of voice data, and reproduction means, which perform all processing related to the reproduction of voice data of stored calls.
- 1 1, 1 3 2; voice path management means 1 ⁇ 3 , 1 3 3 for creating two identical voice buckets for transmission and managing the process of transmitting them to the call controller and the other party; It is provided with communication terminal whole control means 114 and 134 for controlling the whole. '
- the voice path management means ⁇ 13, 13 3 when a call is connected and a call is started, packetizes the voice data of its own communication terminal 110, 130, and the communication means 111, 1 31 When transmitting from 1 to the network, two identical packets are created, and predetermined management is performed so that one is transmitted to the call control device and the other is transmitted to the communication terminal of the other party.
- the communication terminals 110 and 130 may be terminals having a communication function that can be connected to a network, such as a personal computer (PC), an Internet phone, and an IP phone.
- a network such as a personal computer (PC), an Internet phone, and an IP phone.
- the call control device 150 is composed of voice mixing means 151 for mixing and storing bucketed voice data transmitted from the communication terminal connected to the call, and user data voice storage based on a reproduction request from the communication terminal.
- the audio reproduction control means 152 for controlling the reproduction processing of the audio data stored in the database 160, the communication means 153 for performing the communication processing with the communication terminal, and the communication terminals 110, 130 for call control Address assigning means 154 for setting and managing an address for transmitting voice data to the device 150, and a call control device overall control device for controlling the entire call control device. Steps 1 and 5 are provided.
- the communication means 153 processes transmission / reception of various requests (for example, call connection requests) from communication terminals, generates voice data from received packets, and packetizes voice data for transmission. Perform communication processing.
- various requests for example, call connection requests
- the call control device overall control means 155 manages at least the call connection status (whether or not a call is being made) of the communication terminal connected to the network and the address of the communication terminal, and receives a call connection request to the communication terminal. In such a case, it is determined whether or not connection is possible based on the managed call connection status. If connection is possible, connection between communication terminals is enabled.
- the user data voice storage database 160 connected to the call control device 150 stores voice data after the mixing of voice data indicating the content of the call transmitted from the voice mixing means 151, and Based on the instruction of the audio reproduction control means 152, the stored audio data is extracted.
- the user data voice storage database 160 manages the registration status of the service of the user who uses the communication terminals 110 and 130 (for example, information such as call recording registration Z unregistered). .
- the network 170 is an IP network such as the Internet ⁇ LAN, IP—VPN, or the like. Further, the switches 100, 120, and 140 may be devices having a router function of performing routing by an IP address depending on the type of the network 170.
- each unit of the communication terminals 110, 130 and the call control device 150 are realized by causing a computer incorporated in these devices to perform processing specified by a program.
- FIG. 3 shows a reception address management table (reception address management table) which is used when receiving voice data from the communication terminals 110 and 130, which is managed by the address assignment means 154. ing.
- the management table includes an audio data receiving address and its use status.
- FIG. 4 shows an example of the content managed by the user data voice storage database 160. As shown in Fig. 4, this user data voice storage database
- the user can set the communication terminal at any time through the network 170, and the communication terminal It is also possible to sign a contract when housed in network 170
- Figure 5 shows the call connection from communication terminal 110 to communication terminal 130 using SIP (Session Initiation Protocol), which is a protocol for setting up a call on an IP phone. It shows a series of processing sequences from the start of a call to the termination of a call.
- SIP Session Initiation Protocol
- the communication terminal 110 When the user inputs the address of the communication terminal 130 to which the call connection is requested, the communication terminal 110 receives an address for transmitting and receiving voice data under the control of the communication terminal overall control means 114. , A SIP connection request message including this address and the address of the communication terminal 130 is created, the destination of the bucket 1 is set to the call controller 150, and the communication means 111 is set. Then, this connection request message is transmitted to the call control device 150 (S1000).
- the call control device 150 communicates with the communication terminal 110 through the communication means 153.
- the connection request message is received (S1000)
- the call control device overall control means 155 the call connection status of the managed communication terminal 130 is changed to the communication terminal 130. Judgment is made as to whether connection is possible. If connection is possible, address analysis is performed.
- the address assigning means 15 4 the address used when the communication terminal transmits voice data to the call control device 150 is extracted from the “empty” addresses in the reception address management table in FIG. 3, and the reception address management table is used. Change the status of the address to "in use" above.
- the call control device 150 changes the destination of the connection request message received from the communication terminal 110 to the communication terminal 130 under the control of the call control device overall control means 1505. As shown in A, after the area 18 1 in which the connection request message is described, the address taken out by the address assigning means 154 is added (S 1 050) to create a connection request message, and Is transmitted to the communication terminal 130 by the communication means 153 (S110).
- the communication terminal 130 When the communication terminal 130 receives the connection request message from the call controller 150 by the communication means 131 (S110), the communication terminal 130 under the control of the communication terminal overall control means 134 In preparation for starting a call connection, for example, setting of a voice codec, a destination address of voice data transmission to the communication terminal 110 set in the received connection request message, and a call control device 150 For example, processing for setting the destination address of the audio data to the audio path management means 133 is performed.
- the communication terminal 130 sets an address for receiving voice data from the communication terminal 110 under the control of the communication terminal overall control means 134, and sends a connection response message including this address. Then, the destination is set to the call control device 150, and the connection response message is transmitted to the call control device 150 using the communication means 131 (S115). Then, when the call control device 150 receives the connection response message from the communication terminal 130 at the communication means 150 3 (S 115), the call control device 150 controls the overall control of the call control device 150.
- a port setting is performed. Then, the destination of the connection response message received from the communication terminal 130 is changed to the communication terminal 110, and as shown in FIG.
- the adding means 154 adds the address extracted from the receiving address management table of FIG. 3 to create a connection response message, and transmits this to the communication terminal 110 by the communication means 153 (S 1 200).
- the communication terminal 110 When the communication terminal 110 receives the connection response message from the call control device 150 at the communication means 111 (S 1200), the communication terminal 110 under the control of the communication terminal overall control means 114 In the same way as in the case of the communication terminal 130, for example, the setting process of the voice codec and the voice data to the communication terminal 130 set in the received connection response message are performed. For example, processing for setting the destination address and the destination address of the voice data to the call control device 150 in the voice path management means 113 is performed. Then, a connection completion message destined for the call control device 150 is created, and transmitted to the call control device 150 using the communication means 111 (S125).
- the call control unit 150 controls the control of the entire call control unit 1505.
- a connection completion message in which the destination of the received connection completion message is changed to the communication terminal 130 below is created, and transmitted to the communication terminal 130 using the communication means 153 (S130). .
- the voice path 191 is a voice path from the communication terminal 130 to the call control device 150.
- the voice path 192 is a voice path from the communication terminal 110 to the call control device 150.
- the voice path 1993 is a voice path from the communication terminal 110 to the communication terminal 130, and the voice path 194 is a voice path from the communication terminal 130 to the communication terminal 110.
- the communication terminal 110 uses the voice path management means 113 in the process of bucketing the voice data when transmitting the voice data of the own terminal to the network by the communication means 111, Two identical packets are created, one of which is sent to the address of the communication terminal 130 notified by the connection response message from the call control device 150 to the communication terminal 110 by the voice path 193, and the other to the other. Are transmitted to the address of the call control device 150 via the voice path 1992.
- the communication terminal 130 also creates two identical packets of voice data using the voice path management means 133, and uses the voice path 194 to transmit one packet from the call control device 150 to the communication terminal 150.
- the address is transmitted to the address of the communication terminal 110 notified by the connection request message to 130, and the other is transmitted to the address of the call control device 150 via the voice path 191.
- the call control device 150 uses the same address as the address used in the voice paths 191 and 192, and is sent from the communication terminal 110 based on the source data of the header in the packet. It is to be distinguished whether the data is audio data transmitted from the communication terminal 130 or audio data transmitted from the communication terminal 130.
- the direct call processing between the communication terminal 110 and the communication terminal 130 is represented by S135 and S1400, and the voice from the communication terminal 110 to the call control device 150 is transmitted.
- the data transmission process is represented by S1500
- the transmission process of voice data from the communication terminal 130 to the call control device 150 is represented by S1450.
- the call control device 150 disconnects the call of the communication terminals 110, 130 while receiving the voice data from the communication terminals 110, 130 by the communication means 153.
- the voice data from the communication terminal 110 "with sound registration" is subjected to voice mixing using the voice mixing means 1501, and the storage area of the communication terminal 110 in the user data voice storage database 160 is processed. Then, the mixing data is stored.
- the communication terminal 110 Under the control of the communication terminal overall control means 114, the communication terminal 110 prepares to disconnect the connected call upon an on-hook operation or the like by the user. For example, the voice path management means 111 The voice data transmission destination address of the communication terminal 130 set to 3 and the voice data transmission destination address of the call control device 150 are cleared. Then, a disconnection request message destined for the call control device 150 is created, and transmitted to the call control device 150 using the communication means 111 (S155). When the communication control unit 150 receives the disconnection request message from the communication terminal 110 (S155), the call control unit 150 controls the control of the entire call control unit 1505. In the following, the destination of the received disconnection request message is changed to the communication terminal 130, and this disconnection request message is transmitted to the communication terminal 130 using the communication means 153 (S1600) ).
- the communication terminal 130 receives the disconnection request message from the call controller 150 by the communication means 131 (S1600), under the control of the communication terminal overall control means 134, In preparation for disconnecting the connected call, for example, the voice data transmission destination address of the communication terminal 110 set in the voice path management means 133 and the voice data transmission of the call control device 150 Clear the dress, etc. Then, a disconnection response message destined for the call control device 150 is created, and transmitted to the call control device 150 using the communication means 131 (S1650).
- the communication terminal 110 receives the disconnection response message from the call control device 150 by the communication means 111 (S1750).
- the call disconnection between the communication terminals 110 and 130 is performed, and at the same time, the two communication terminals 110 addressed to the call control device 150. , 130 are no longer transmitted, and the call controller 150 stops recording the call.
- the communication terminal 110 When playing back the voice data stored in the user data voice storage database 160, the communication terminal 110 receives a key input from the playback means 112, that is, a PB (Push Button) input. As a trigger, under the control of the communication terminal overall control means 114, a playback request message in which the terminal address for receiving the stored audio data is set is created, and the communication means 111 is used. To the call controller 150.
- a key input from the playback means 112 that is, a PB (Push Button) input.
- PB Push Button
- the communication control unit 150 receives the playback request message from the communication terminal 110 at the communication unit 1503, the call control unit 150 under the control of the call control unit overall control unit 155, 2, the audio data is extracted from the storage area (see FIG. 4) in the user data audio storage database 160 of the communication terminal 110 requesting the reproduction by using the communication terminal 110, and the communication terminal 115 is transmitted to the communication terminal 110 using the communication means 153. Send.
- the communication means 110 receives the voice data from the call control device 150 by the communication means 111
- the communication means 110 receives the voice data by the reproduction means 112 under the control of the communication terminal general control means 114. Plays back the audio data.
- Voice path management means 1 13, 13 3 for transmitting the call directly to the call control device 150 and the other to the other communication terminal 130 (or 110).
- the control device 150 is provided with voice mixing means 1501, which mixes voice data sent to itself and stores it in the user data voice storage database 160, thereby enabling call recording. I have.
- the voice data of the communication terminal during the call connection is transmitted directly to the other communication terminal without going through the call control device, so that the time interval between the transmission of the voice data and the reception of the voice data is reduced. Short transmission becomes possible, and the number of communication terminals that can be managed by the call control device is larger than when the call control device intervenes in transmitting and receiving voice data between communication terminals.
- negotiation information for performing bidirectional communication such as a voice codec is exchanged in a connection message for a call connection.
- each communication terminal and the call control device are connected to the network via separate switches, but a plurality of communication terminals and the call control device are connected via the same switch. It can also be configured to be connected to a network.
- the protocol used in the call connection has been described as SIP, but the operation of the present embodiment can be performed by other protocols. Further, in the present embodiment, the description has been given assuming that the start of the call recording is registered in the call control device in advance, but the transmission and reception of voice data during the call connection is performed. The user using the communication terminal that is making the call starts recording the call by key entry or other means as necessary during the call, and in the same manner, records the call before the call is disconnected. It may be terminated.
- the present invention is not limited to this.
- the storage of one communication terminal in the user data voice storage database is performed. It is also possible to store the voice data after voice mixing in the area and store a copy of the data in the storage area of the other communication terminal.
- FIG. 8 shows an exchange system according to the present embodiment.
- Reference numeral 30 corresponds to the communication terminals 110 and 130 in Embodiment 1 shown in FIG. 2 from which the voice path management means is deleted.
- the call control device 250 replaces the address assigning means 154 in the first embodiment shown in FIG. 2 with a multicast address for communication between the communication terminals 210 and 230.
- Embodiment 40 is a switch for multicast. Other configurations are the same as in Embodiment 1 (see Figure 2).
- each part of the communication terminals 210, 230 and the call control device 250 causes a computer incorporated in these devices to perform processing specified by a program. This is achieved by:
- FIG. 9 shows a multicast address management table managed by the multicast address assigning means 251. As shown in FIG. 9, the management table describes a multicast address used for a call between the communication terminals 210 and 230, and the usage status.
- the contents shown in FIG. 10 are stored in the user data voice storage database 160 as in the first embodiment (see FIG. 4).
- Fig. 11 shows a series of processing sequence from the call connection from the communication terminal 210 to the communication terminal 230 using the SIP, the start of the call after the completion of each call, and the disconnection of the call. Is shown.
- the communication terminal 210 under the control of the communication terminal overall control means 211, is triggered by the user inputting the address of the communication terminal 230 to which the call connection is requested, and the call control device A connection request message destined for 250 is created, and transmitted to the call control device 250 using the communication means 111 (S2000).
- the call control unit 250 controls the call control unit overall control unit 252.
- the call control unit 250 based on the call connection status of the managed communication terminal 230, it is determined whether or not connection to the communication terminal 230 is possible. If connection is possible, address analysis is performed.
- the multicast address assigning means 25 In step 1, communication is performed from among the "free” addresses in the multicast address management table in Fig. 9.
- the terminal selects and extracts the multicast address used for the call, and changes the status of that address to “in use” in the multicast address management table.
- the call controller 250 changes the destination of the connection request message received from the communication terminal 210 to the communication terminal 230 under the control of the call controller overall control means 252.
- the multicast address is added to the area 262 after the area 261 in which the connection request message is described (S2500), and a connection request message is created and transmitted.
- the data is transmitted to the communication terminal 230 by the means 153 (S210).
- the call control device 250 participates in the multicast group indicated by the multicast address.
- the communication terminal 230 receives the connection request message from the call control device 250 by the communication means 131 (S210), the communication terminal 230 under the control of the communication terminal overall control means 231 In preparation for starting a call connection, for example, setting of an audio codec, setting of a multicast address set in a received connection request message, processing of joining a multicast group (S2150), and the like I do.
- This multicast address becomes the address of the audio data transmission destination to the communication terminal 210 and the address of the audio data transmission destination to the call control device 250.
- the communication terminal 230 creates a connection response message destined for the call control device 250 under the control of the communication terminal overall control means 231, and performs call control using the communication means 1331.
- the data is transmitted to the device 250 (S2200).
- the call control device 250 When the call control device 250 receives the connection response message from the communication terminal 230 at the communication means 153 (S 220), the call control device 250 controls the call control device overall control means 252. Below, as a preparation to enable the reception of audio data from the communication terminal, for example, a port setting is performed. Then, the destination of the connection response message received from the communication terminal 230 is changed to the communication terminal 210, and as shown in FIG. 12B, after the area 263 in which the connection response message is described, Cast address assigning means 2 5 1 is the multicast address management table in Fig. 9 A connection response message is created by adding the multicast address extracted from the communication terminal, and this message is transmitted to the communication terminal 210 by the communication means 153 (S225).
- the communication terminal 211 receives the connection response message from the call control device 250 by the communication means 111 (S225), under the control of the communication terminal general control means 211, As in the case of the communication terminal 230, for example, the voice codec is set or the multicast address set in the received connection request message is transmitted to the communication terminal 230 in preparation for starting the call connection.
- the address is set as the data transmission destination address and the voice data transmission destination address of the call control device 250, and a process of joining a multicast group (S2300) is performed.
- a connection completion message destined for the call control device 250 is created, and transmitted to the call control device 250 by the communication means 111 (S2350).
- connection completion message is created by changing the destination of the received connection completion message to the communication terminal 230, and transmitted to the communication terminal 230 using the communication means 153 (S2400).
- the call control device 250 receives the voice data transmitted from the communication terminals 210 and 230 using the multicast address by the communication means 15 3, that is, the communication terminals 2 10 and 2 Until the 30 calls are disconnected, under the control of the call control device overall control means 25, from the communication terminal 21 1
- the voice data is subjected to voice mixing processing using the voice mixing means 151, and the mixed data is stored in the storage area of the communication terminal 210 in the user data voice storage database 160.
- the communication terminal 210 Under the control of the communication terminal overall control means 211, the communication terminal 210 prepares to disconnect the connected call upon the on-hook operation by the user, for example, leaving the multicast group (for example, leaving the multicast group). S 2550) and so on. Then, a disconnection request message destined for the call control device 250 is created and transmitted to the call control device 250 using the communication means 111 (S2600).
- the call control device 250 When the call control device 250 receives the disconnection request message from the communication terminal 210 at the communication means 15 3 (S 2600), the call control device 250 In the following, the destination of the received disconnection request message is changed to the communication terminal 230, and this disconnection request message is transmitted to the communication terminal 230 using the communication means 153 (S2650) .
- the communication terminal 230 When the communication terminal 230 receives the disconnection request message from the call control device 250 in the communication means 131 (S2650), the communication terminal 230 under the control of the communication terminal overall control means 231 Then, as a preparation for disconnecting the connected call, for example, a multicast group leaving (S2700) is performed. Then, a disconnection response message destined for the call control device 250 is created and transmitted to the call control device 250 using the communication means 1331 (S2750).
- the call control device 250 When the call control device 250 receives the disconnection response message from the communication terminal 230 at the communication means 153 (S 275), the call control device 250 controls the control of the entire call control device 252. Below, the destination of the received disconnection response message is changed to the communication terminal 210, and this disconnection response message is transmitted to the communication terminal 210 using the communication means 153 (S2805). . Also, at this time, the multicast address is obtained from the multicast address management table (see FIG. 9) by the multicast address assigning means 25 1. The multicast address changed from “in use” to “free” (address release) (S2800), and the call control device 250 leaves the multicast group.
- the communication terminal 210 receives the disconnection response message from the call control device 250 through the communication means 111 (S2805).
- the call disconnection between the communication terminals 210 and 230 is performed, and at the same time, the two-way communication with the call control device 250 as the destination.
- the voice data of the terminals 210 and 230 are no longer transmitted, and the call controller 250 stops recording the call.
- the call control device 250 includes the means 251 for managing and assigning the multicast address for call recording, and the communication terminal 210 (or When there is a call connection request from 230), a multicast address is selected and notified to all communication terminals 230 (210) involved in the call connection, and a call is sent to the multicast group indicated by the address. Controller 250 participates.
- the communication terminal 210 (or 230) transmits all voice data of the call using the address, and the call control device 250 transmits the self-address transmitted to the address.
- the voice bucket addressed to the destination is mixed and stored in the user data voice storage database 160. Thus, the call recording is performed.
- the voice data of the communication terminal during the call connection is transmitted directly to the other communication terminal without going through the call control device, so that the time interval between the transmission of the voice data and the reception of the voice data is reduced.
- Short transmission becomes possible, and the number of communication terminals that can be managed by the call control device is larger than when the call control device intervenes in transmitting and receiving voice data between communication terminals.
- the call control device specifies a multicast address to be used for both a call between communication terminals and a call recording of the call control device.
- the available multicast address may be held in advance, and the multicast address may be notified to the communication terminal and the call control device on the called side to realize the communication between the communication terminals and the recording of the call.
- the called party may do so.
- a communication terminal having a reception buffer directly talks with a partner terminal, stores voice data of the partner in the reception buffer, and after disconnecting the call, transmits the voice data in the buffer to the call control device.
- the switching system for sending and storing will be described.
- the switching system includes communication buffers 3110 and 330, and reception buffers 311 and 331 for temporarily storing received voice data.
- Other configurations are the same as those of the first embodiment (see FIG. 2).
- each unit of the communication terminals 310 and 330 and the call control device 350 are realized by causing a computer incorporated in these devices to perform processing specified by a program.
- FIG. 15 shows a series of processing sequences from a call connection from the communication terminal 310 to the communication terminal 330 using the SIP, a call being started after the completion of the connection, and a call being disconnected. Is shown.
- the processing of S 3 00 0 to S 3 250 until the call connection is performed between the communication terminals 3 10 and 3 3 0 is performed by the S 1 0 0 to S 3 of the first embodiment shown in FIG. Same as 1300.
- the address assignment processing in the call control device 350. is omitted.
- S3000 to S325 a call connection between the communication terminal 310 and the communication terminal 330 is established, and during a call, as shown in FIG. , Two audio paths 36 1 and 36 2 are formed.
- the voice path 361 is a voice path from the communication terminal 310 to the communication terminal 330
- the voice path 362 is a voice path from the communication terminal 330 to the communication terminal 310.
- the call processing by the voice paths 361, 362 is represented by S330, S350.
- the communication terminal 310 receives the voice data transmitted from the communication terminal 330 in the communication means 111, and receives the voice data under the control of the communication terminal general control means 310.
- the voice data is stored in the buffer 311 and the voice data is output to a speaker or a receiver attached to the communication terminal 310. Similar processing is performed in the communication terminal 330.
- the communication terminal 310 Under the control of the communication terminal overall control means 312, the communication terminal 310 prepares to disconnect the currently connected call, triggered by an on-hook operation or the like by the user, and activates the call control device 350. A disconnection request message as a destination is created and transmitted to the call control device 350 using the communication means 111 (S3400). Then, the reception of the voice data transmitted from the destination communication terminal 330 of the call connection is stopped and, at the same time, the accumulation in the reception buffer 311 is stopped.
- the call control device 350 receives the disconnection request message from the communication terminal 310 at the communication means 153 (S340), the control of the call control device overall control means 351 is performed.
- a disconnection message is created by changing the destination of the received disconnection request message to the communication terminal 330, and is transmitted to the communication terminal 330 using the communication means 153 (S3450).
- the communication terminal 330 When the communication terminal 330 receives the disconnection request message from the call control device 350 in the communication means 13 1 (S 340), the communication terminal overall control means 3 32 Under the control of, prepare to disconnect the connected call, create a disconnection response message destined for the call control device 350, and send it to the call control device 350 using the communication means 131 (S350).
- the communication terminal 330 receives the voice data transmitted from the destination communication terminal 310 of the call connection in response to the transmission of the disconnection response message from the communication means 131, and receives the reception buffer. 3 3 1 is stopped and, at the same time, using the communication means 13 1, the voice data in the reception buffer 3 3 1 The address of 50 is transmitted as a destination (buffer content transfer) (S355). This transmission is continued while audio data exists in the reception buffer 331.
- a disconnection response message is created by changing the destination of the received disconnection response message to the communication terminal 310, and is transmitted to the communication terminal 310 using the communication means 153 (S3660). .
- the communication terminal 311 uses the communication means 111 to receive the disconnection response message from the call control device 350 by the communication means 111, and Is transmitted to the address of the call controller 350 notified by the connection response message of S310 (buffer content transfer) (S365). This transmission is continued while audio data exists in the reception buffer 311.
- the call control unit 3501 controls the entire call control unit control unit 351.
- the two voice data are mixed using the voice mixing means 15 1, and, for example, for the voice data from the communication terminal 310 with “call recording registration”, the user data voice storage database 1 Store as voice data of call recording in the storage area of the communication terminal 310 in 60 (See Figure 17).
- the communication means 153 confirms that the transmission of the voice data from both the communication terminal 310 and the communication terminal 330 is stopped, the storage in the user data voice storage database 160 is stopped, and the address is stopped.
- the assigning means 154 the address notified to the communication terminal at the time of transmission of the connection request message and the connection response message in the address management table of FIG. 3 is set as “empty”.
- the communication terminals 310 and 3330 are provided with the reception buffers 311 and 331 for storing the voice data of the partner terminal, and the communication terminals 3 Transmits the voice data of its own terminal directly to the partner terminal, and stores the voice data similarly transmitted from the partner communication terminal in its reception buffer. Then, after the call is disconnected, the voice data in the reception buffers 311 and 331 of the communication terminals 3110 and 330 are packetized and transmitted to the call controller 350, and the call controller 350 is transmitted. “0” realizes call recording by mixing the received bucket and storing it in the user data voice storage database 160.
- the voice data of the communication terminal during the call connection is transmitted directly to the communication terminal of the other party without passing through the call control device.
- Short transmission becomes possible, and the number of communication terminals that can be managed by the call control device is larger than when the call control device intervenes in transmitting and receiving voice data between communication terminals.
- the contents of the reception buffer of the communication terminal are transmitted to the call control device upon the disconnection of the call, but, for example, using the time when the network traffic is lowest in one day, Many changes are possible, such as making this transmission.
- the call control device If the user using the communication terminal connected to the call transmits a call recording request message to the call control device by key input during the call and designates the start of call recording, the call control device The address to be used for call recording may be notified by a response message or the like.
- a communication terminal having a reception buffer talks directly with a partner terminal, stores the voice data of the other party and one's own in the reception buffer, mixes the voice data in the buffer after disconnecting the call, An exchange system for transmitting to the call control device and storing it will be described.
- the communication terminals 410 and 430 are provided with voice mixing means 4 for mixing voice data stored in the reception buffers 311a and 331a. 1 1 and 4 3 1 and the voice data input by the user are copied, one is stored in the reception buffers 3 1 1 and 3 3 1, and the other is transmitted to the destination communication terminal connected to the call. Voice receiving means 4 1 2 and 4 3 2 are provided. Further, the call control device 450 does not have a voice mixing means. Other configurations are the same as those of the third embodiment (see FIG. 14).
- reception buffers 3 1 1a and 3 3 1a receive the voice data transmitted from the partner communication terminal during the call connection by the communication means 1 1 1 and 1 3 1 and temporarily store it. Temporarily stores a copy of the voice data sent from the own communication terminal to the other communication terminal sent from the own voice receiving means 4 1 2 and 4 3 2.
- each unit of the communication terminals 4100 and 4300 and the call control device 450 are realized by causing a computer incorporated in these devices to perform processing specified by a program.
- FIG. 19 shows a series of processing sequences from the call connection from the communication terminal 410 to the communication terminal 430 using the SIP, the call being started after the completion of the connection, and the call being disconnected. ing.
- the processing of S4000 to S4250 until a call connection is made between the communication terminals 410 and 430 is almost the same as that of S1000 to S1300 of the first embodiment shown in FIG.
- the only difference is that the connection request message sent from the call controller 450 to the communication terminal 430 in S4050 is not provided with the voice data receiving address obtained from the address management table.
- the connection data message sent from the call control device 450 to the communication terminal 410 in S4150 is provided with the voice data receiving address.
- the communication terminal 410 notified of the voice data reception address stores the voice data of the other party and its own in the reception buffer 311a, and after the call is disconnected, the voice data in the reception buffer 311a.
- the processing for mixing and transmitting to the call control device 450 is performed, but the communication terminal 430 to which the address for voice data reception is not notified does not perform such processing.
- a call connection between the communication terminal 410 and the communication terminal 430 is established, and during a call, as shown in FIG. 1, 462 are formed.
- the voice path 461 is a voice path from the communication terminal 410 to the communication terminal 430
- the voice path 462 is a voice path from the communication terminal 430 to the communication terminal 410.
- the call processing by the voice paths 461 and 462 is represented by S4300 and S4350.
- the communication terminal 410 Since the communication terminal 410 is notified of the address addressed to the call control device 450 by the connection response message of S4150, when receiving voice data from the communication terminal 430 during a call, the communication terminal 4100 Under the control of 13, the voice data received by the communication means 1 11 1 is stored in the reception buffer 3 1 1 a, Output to a speaker or receiver attached to the communication terminal 410.
- the communication terminal 410 transmits voice data of the user using the communication terminal 410 to the communication terminal 430, the own voice receiving means 412, 432 is provided by the user. Under the control of the communication terminal overall control means 4 13, one copy of the voice data is stored in the reception buffer 3 11 a and the other is stored in the communication means. Using 1 1 1, transmission is made to the other party's communication end 4 3 0 via the voice path 4 6 1.
- the voice data is stored in the reception buffer 331a. Absent. Other processes are the same as those of the communication terminal 410.
- the communication terminal 410 Under the control of the communication terminal overall control means 4 13, the communication terminal 410 prepares to disconnect the connected call upon the on-hook operation by the user or the like. A disconnection request message as a destination is created and transmitted to the call control device 450 using the communication means 111 (S440). Then, the reception of the voice data transmitted from the communication terminal 430 of the call connection is stopped, and at the same time, the accumulation in the reception buffer 311a is also stopped.
- the call control device 450 When the call control device 450 receives the disconnection request message from the communication terminal 410 at the communication means 153 (S440), the call control device 450 controls the call control device overall control means 451. Below, a disconnection message is created by changing the destination of the received disconnection request message to the communication terminal 430, and transmitted to the communication terminal 430 using the communication means 153 (S4440).
- the communication terminal 430 upon receiving the disconnection request message from the call control device 450 by the communication means 1331 (S440), the communication terminal 430 is under the control of the communication terminal overall control means 433. And prepare to disconnect the connected call, and call control device 450 Is created, and transmitted to the call control device 450 using the communication means 13 1 (S 4500).
- the communication terminal 410 receives the two types of voices stored in the reception buffer 311a when the communication unit 111 receives the disconnection response message from the call control device 450.
- the data is mixed using the voice mixing means 4111, and transmitted to the address of the call control device 450 notified by the connection response message of S4150 using the communication means 111 (buffer Content transfer) (S460). This transmission is continued while audio data exists in the reception buffer 311a.
- the call control device 450 starts receiving the voice data transmitted from the communication terminal 410 by the communication means 153, and under the control of the call control device overall control means 451, Voice data is stored as voice data for call recording in the storage area of the communication terminal 410 in the user data voice storage database 160 (see Fig. 21).
- the communication means 153 confirms the stop of the transmission of the voice data from the communication terminal 410
- the storage in the user data voice storage database 160 is stopped, and the address assigning means 154 is used.
- the address notified to the communication terminal 410 when the connection response message is transmitted is set as “empty”.
- the communication terminals 4 10 and 4 3 0 is provided with receive buffers 3 1 1 a and 3 3 1 a and voice mixing means 4 1 1 and 4 3 1, and during the call connection, the voice data of the own terminal is stored in the own buffer area in the receive buffer At the same time, the data is transmitted directly to the partner terminal, and the voice data transmitted from the partner communication terminal is stored in the partner buffer area of the reception buffer. Then, after the call is disconnected, the audio data in each area in the reception buffers 311a and 331a are mixed, and the mixed data is bucketed and transmitted to the call control device 450. Then, the call control device 450 receives the bucket and stores it in the user data voice storage database 160, thereby realizing call recording.
- the voice data of the communication terminal during the call connection is transmitted directly to the other communication terminal without going through the call control device, so that the time interval between the transmission of the voice data and the reception of the voice data is reduced. Short transmission becomes possible.
- the call control device only needs to manage the contents of the call recordings that have been voice-mixed by the communication terminal, and does not require any processing such as voice mixing related to the call recording. The number is even greater.
- the switching system of the present invention can record the contents of a call with the call control device while transmitting and receiving voice data directly between communication terminals without passing through the call control device. . Therefore, it is possible to reduce delay of voice data transmitted and received between communication terminals, and to avoid unnatural communication such as voice of the other party being heard late.
- the load on the call control device can be reduced, and the number of communication terminals that can be managed by the call control device can be increased.
- the present invention can be applied to, for example, an exchange system for exchanging voice calls and the like performed in real time between communication terminals via the Internet, a LAN, or the like.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR10-2004-7009868A KR20040068332A (ko) | 2001-12-27 | 2002-12-25 | 교환 시스템 및 통화 녹음 방법 |
JP2003557187A JPWO2003056798A1 (ja) | 2001-12-27 | 2002-12-25 | 交換システム及び通話録音方法 |
EP02793372A EP1460825B1 (en) | 2001-12-27 | 2002-12-25 | Exchange system and communication recording method |
US10/499,984 US20060215822A1 (en) | 2001-12-27 | 2002-12-25 | Exchange system and communication recording method |
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JP2006100999A (ja) * | 2004-09-28 | 2006-04-13 | Fujitsu Ltd | 通話記録システム、通話記録方法及びコンピュータプログラム |
CN100417238C (zh) * | 2003-07-31 | 2008-09-03 | 华为技术有限公司 | 语音数据在线录取和上载方法 |
JP2021048641A (ja) * | 2017-03-10 | 2021-03-25 | 株式会社Bonx | 通信システム、プログラム、及び通信システムの制御方法 |
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US7787974B2 (en) * | 2005-01-05 | 2010-08-31 | Verint Americas Inc. | Independent source recording |
US8553851B2 (en) * | 2006-02-15 | 2013-10-08 | Nec Sphere Communications, Inc. | System and method for recording calls in an IP-based communications system |
CN101496356B (zh) * | 2006-06-29 | 2013-10-16 | 瓦林特美国股份有限公司 | 用于提供记录作为网络服务的系统和方法 |
CN101106420B (zh) * | 2006-07-11 | 2011-03-30 | 华为技术有限公司 | 一种实现小区多播业务下行合并的方法 |
US20100042647A1 (en) * | 2008-08-14 | 2010-02-18 | Verizon Business Network Services Inc. | Method and system for recording real-time communications |
KR101651119B1 (ko) * | 2008-11-11 | 2016-08-25 | 삼성전자주식회사 | 아이피 멀티미디어 부시스템에서 녹취 서비스를 제공하기 위한 장치 및 방법 |
KR101308192B1 (ko) * | 2011-01-05 | 2013-09-13 | 주식회사 팬택 | 근거리 무선통신으로 연결된 단말기로 콜을 넘겨주는 콜 패스 시스템 및 방법 |
JP5994630B2 (ja) * | 2012-12-26 | 2016-09-21 | アイコム株式会社 | 中継装置 |
US20150036548A1 (en) * | 2013-08-05 | 2015-02-05 | Alan Weir | System and method for recording calls in an ip-based communications system |
US20150288814A1 (en) * | 2014-04-03 | 2015-10-08 | Xiaomi Inc. | Methods, devices and systems for handling busy line |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100417238C (zh) * | 2003-07-31 | 2008-09-03 | 华为技术有限公司 | 语音数据在线录取和上载方法 |
JP2006100999A (ja) * | 2004-09-28 | 2006-04-13 | Fujitsu Ltd | 通話記録システム、通話記録方法及びコンピュータプログラム |
JP4632735B2 (ja) * | 2004-09-28 | 2011-02-16 | 富士通株式会社 | 通話記録システム、通話記録方法及びコンピュータプログラム |
JP2021048641A (ja) * | 2017-03-10 | 2021-03-25 | 株式会社Bonx | 通信システム、プログラム、及び通信システムの制御方法 |
JP7219492B2 (ja) | 2017-03-10 | 2023-02-08 | 株式会社Bonx | 通信システム、プログラム、及び通信システムの制御方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2003056798A1 (ja) | 2005-05-12 |
KR20040068332A (ko) | 2004-07-30 |
EP1460825A4 (en) | 2005-05-04 |
EP1460825A1 (en) | 2004-09-22 |
US20060215822A1 (en) | 2006-09-28 |
CN1618228A (zh) | 2005-05-18 |
EP1460825B1 (en) | 2011-07-20 |
CN100438541C (zh) | 2008-11-26 |
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