WO2015154520A1 - 通话录音方法、录音服务器、用户级交换机及录音系统 - Google Patents

通话录音方法、录音服务器、用户级交换机及录音系统 Download PDF

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Publication number
WO2015154520A1
WO2015154520A1 PCT/CN2014/094525 CN2014094525W WO2015154520A1 WO 2015154520 A1 WO2015154520 A1 WO 2015154520A1 CN 2014094525 W CN2014094525 W CN 2014094525W WO 2015154520 A1 WO2015154520 A1 WO 2015154520A1
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Prior art keywords
recording
media stream
media
signaling
server
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PCT/CN2014/094525
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English (en)
French (fr)
Inventor
诸宏亮
斯元海
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华为技术有限公司
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Publication of WO2015154520A1 publication Critical patent/WO2015154520A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a call recording method, a recording server, a user-level switch, and a recording system.
  • UC Unified Communications
  • CC Call Center
  • PBX Private Branch Exchange
  • the PBX resource needs to be used as a site during the recording process, which increases the resource consumption of the PBX.
  • the embodiment of the present invention provides a call recording method, a recording server, a user-level switch, and a recording system to solve the recording method in the prior art.
  • the PBX resource needs to be used as a site to increase the resource consumption of the PBX. The problem.
  • an embodiment of the present invention provides a call recording method, including:
  • Determining the signaling and determining a recording mode according to the number in the recording instruction and the result of parsing the signaling, where the determined recording mode is specifically a mirror recording or a venue recording;
  • the signaling is parsed, and the recording mode is determined according to the number in the recording instruction and the result of parsing the signaling, including:
  • the determining, according to the media stream that is transmitted by using the IP address and the media port corresponding to the number, the recording manner including:
  • the media stream of the call terminal including:
  • the determining, according to the media stream that is transmitted by using the IP address and the media port corresponding to the number, the recording manner including:
  • the media stream transmitted through the IP address and the media port is not recognized from the media stream obtained from the mirror switch, or the media address obtained from the mirror switch is identified by the IP address and the media
  • the media stream transmitted by the port is determined, and the identified media stream is determined to be encrypted, and the recording mode is determined to be a site recording.
  • the method further includes:
  • the indication information indicates that the media stream passing through the IP address and the media port is not encrypted, determining that the recording mode is a mirror recording;
  • the recording mode is a site recording.
  • the signaling is parsed, and the recording mode is determined according to the number in the recording instruction and the result of parsing the signaling, including:
  • the recording, by the determined recording mode, recording a media stream of the call terminal includes:
  • an embodiment of the present invention provides a call recording method, including:
  • the recording instruction including a number of the calling terminal
  • the recording instruction is sent to the recording server, so that the recording server determines the recording mode according to the number and the result of parsing the signaling acquired from the mirroring switch, and the determined recording mode is specifically a mirror recording or a venue recording.
  • the calling terminal includes a calling terminal and a called terminal. After the recording command is sent to the recording server, the method further includes:
  • the media stream received from the calling terminal and the called terminal is mixed and sent to the recording server.
  • the media stream that is received from the calling terminal and the called terminal is mixed.
  • the sound is sent to the recording server, including:
  • an embodiment of the present invention provides a recording server, including:
  • An obtaining module configured to obtain signaling from a mirror switch
  • a receiving module configured to receive a recording instruction sent by the user-level switch PBX, where the recording instruction includes a number of the calling terminal;
  • a parsing module configured to parse the signaling acquired by the acquiring module, and determine a recording mode according to a number in a recording instruction received by the receiving module and a result of parsing the signaling, where the determined recording mode is Specifically, it is a mirror recording or a venue recording;
  • the recording module is configured to record the media stream of the call terminal according to the recording mode determined by the parsing module.
  • the parsing module includes:
  • a first parsing unit configured to parse the signaling acquired by the acquiring module, obtain a number in the signaling, and a network association IP address and a media port corresponding to the number, and store the parsed result in a recording server in;
  • a first matching unit configured to match a number in the recording instruction received by the receiving module with the parsing result stored in the recording server, and match the number in the recording instruction in the parsing result
  • the recording mode is determined according to the media stream transmitted by the IP address corresponding to the number and the media port.
  • the first matching unit is configured to determine a recording manner according to a media stream that is transmitted by using an IP address and a media port corresponding to the number.
  • the method includes: obtaining an IP address and a media port corresponding to the number in the recording instruction in the matching result; and identifying the pass from the media stream obtained from the mirror switch And the media stream transmitted by the IP address and the media port; analyzing the identified media stream to determine whether the media stream is encrypted, and determining that the recording mode is a mirror recording when determining that the media stream is not encrypted;
  • the recording module is specifically configured to record the media stream transmitted through the IP address and the media port in the media stream obtained from the mirror switch.
  • the first matching unit is configured to determine a recording manner according to a media stream that is transmitted by using an IP address and a media port corresponding to the number.
  • the method includes: obtaining, by the matching result, an IP address and a media port corresponding to the number in the recording instruction; if the media stream obtained from the mirror switch is not recognized, the IP address and the media port are not recognized.
  • the first parsing unit is further configured to parse the signaling acquired by the acquiring module to obtain the signaling Instructions;
  • the parsing module further includes: a determining unit, configured to: when the indication information acquired by the first parsing unit indicates that the media stream passing through the IP address and the media port is not encrypted, determining that the recording mode is a mirror recording; or When the indication information acquired by the first parsing unit indicates that the media stream passing through the IP address and the media port is encrypted, the recording mode is determined to be a site recording.
  • the parsing module includes:
  • a second parsing unit configured to parse the signaling acquired by the acquiring module, obtain a number in the signaling, an IP address and a media port corresponding to the number, and store the parsed result in a recording server;
  • a second matching unit configured to match a number in the recording instruction received by the receiving module with the parsing result stored in the recording server, and not matching the number in the recording instruction in the parsing result
  • the recording mode is determined as the site recording.
  • the recording module includes:
  • a sending unit configured to send a site recording instruction to the PBX, to enable the PBX to create a site, and join the calling terminal and the recording server to the conference site;
  • a recording unit configured to record a media stream of the call terminal in the conference site.
  • an embodiment of the present invention provides a user-level switch, including:
  • a recording indication module configured to generate a recording instruction, where the recording instruction includes a number of the calling terminal
  • a sending module configured to send a recording instruction to the recording server, so that the recording server determines a recording mode according to the number and a result of parsing the signaling acquired from the mirroring switch, and according to the determined recording manner,
  • the media stream of the call terminal is recorded, and the determined recording mode is specifically a mirror recording or a venue recording.
  • the call terminal includes a calling call terminal and a called call terminal
  • the user-level switch PBX further includes: a receiving module, configured to record in the sending module After the server sends the recording instruction, receiving the site recording instruction sent by the recording server;
  • a creating module configured to create a site according to the site recording command received by the receiving module, and add the calling terminal, the called terminal, and the recording server to the conference site;
  • a media processing module configured to mix media streams received from the calling terminal and the called terminal
  • the sending module is further configured to send the mixed media stream to the recording server.
  • the media processing module is specifically configured to determine, when determining to receive from the calling terminal and the When the media stream of the called terminal is encrypted, decrypting the media stream received from the calling terminal and the media stream received from the called terminal, respectively, and mixing the decrypted media stream .
  • an embodiment of the present invention provides a recording system, including: a recording server and a user-level switch PBX;
  • the recording server is configured to obtain signaling from the mirror switch.
  • the PBX is configured to generate a recording instruction, where the recording instruction includes a number of the calling terminal, and sends the recording instruction to the recording server;
  • the recording server is further configured to receive a recording instruction sent by the user-level switch PBX, parse the signaling, and determine a recording manner according to the number in the recording instruction and the result of parsing the signaling.
  • the determined recording mode is specifically a mirror recording or a venue recording; and then the media stream of the calling terminal is recorded according to the determined recording manner.
  • the recording server is further configured to parse the signaling, and determine a recording according to a number in the recording instruction and a result of parsing the signaling Ways, including:
  • the recording server is configured to parse the signaling, obtain a number in the signaling, and a network association IP address and a media port corresponding to the number, and store the parsed result in a recording server;
  • the number in the recording instruction is matched with the parsing result stored in the recording server, and when the number in the recording instruction is matched in the parsing result, according to the IP address and media corresponding to the number
  • the media stream transmitted by the port determines the recording mode.
  • the recording server is configured to determine a recording manner according to a media stream transmitted by using an IP address corresponding to the number and a media port, where The method includes: obtaining, by the matching result, an IP address and a media port corresponding to the number in the recording instruction; and identifying, by the media stream obtained from the mirror switch, a media stream that is transmitted by using the IP address and the media port; And analyzing the identified media stream to determine whether the media stream is encrypted, and determining that the recording mode is a mirror recording when determining that the media stream is not encrypted;
  • the recording server is further configured to record the media stream of the call terminal according to the determined recording mode, and specifically includes: the recording server, configured to pass the IP in the media stream obtained from the mirror switch The media stream transmitted by the address and media port is recorded.
  • the recording server is configured to determine a recording manner according to a media stream transmitted by using an IP address corresponding to the number and a media port, where The method includes: obtaining an IP address and a media port corresponding to the number in the recording instruction in the matching result; if the media transmitted through the IP address and the media port is not recognized from the media stream obtained from the mirror switch And determining, by the media stream obtained from the mirror switch, the media stream that is transmitted through the IP address and the media port, and determining that the identified media stream is encrypted, determining that the recording mode is a site recording.
  • the recording server is further configured to parse the signaling to obtain indication information in the signaling; Determining, by the indication information, that the recording mode is a mirrored recording when the media stream of the IP address and the media port is not encrypted; or when the indication information indicates that the media stream passing through the IP address and the media port is encrypted , determine that the recording mode is the venue recording.
  • the recording server is further configured to parse the signaling, and determine the recording according to the number in the recording instruction and the result of parsing the signaling Ways, including:
  • the recording server is configured to parse the signaling, obtain a number in the signaling, and a network association IP address and a media port corresponding to the number, and store the parsed result in a recording server;
  • the number in the recording command is matched with the parsing result stored in the recording server.
  • the recording mode is determined as the site recording.
  • the recording server is further configured to: the call terminal according to the determined recording manner
  • the media stream is recorded, and specifically includes: the recording server, configured to send a site recording instruction to the PBX; and record a media stream of the call terminal in the site after the PBX creates a site;
  • the call terminal includes a calling call terminal and a called call terminal; the PBX is further configured to receive a site recording command sent by the recording server; create the site according to the site recording instruction, and the calling party
  • the call terminal, the called call terminal, and the recording server join the conference site; and then the media stream received from the calling call terminal and the called call terminal is mixed and sent to the recording server.
  • the PBX is further configured to mix media streams received from the calling terminal and the called terminal The sound is sent to the recording server, and the specifics include:
  • the PBX configured to: when determining that a media stream received from the calling terminal and the called terminal is encrypted, to receive a media stream received from the calling terminal and receive the called call
  • the media streams of the terminal are decrypted separately, and the decrypted media streams are mixed and sent to the recording server.
  • the call recording method, the recording server, the user-level switch, and the recording system provided by the embodiment of the present invention parse the signaling acquired from the mirroring switch through the recording server, and according to the number and pair signaling in the recording instruction received from the PBX
  • the result of the analysis determines the recording mode as a mirror recording or a site recording, and realizes that the recording server records the media stream of the call terminal according to the determined recording mode, instead of uniformly recording through the site recording manner, thereby reducing to some extent.
  • Resource consumption of PBX is a mirror recording or a site recording.
  • FIG. 1 is a flowchart of a method for recording a call according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram of a call recording scenario provided in an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another call recording scenario provided in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of still another call recording scenario provided in an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for recording a call according to Embodiment 2 of the present invention.
  • FIG. 6 is a signaling flowchart of a call recording method according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic structural diagram of a recording server according to Embodiment 4 of the present invention.
  • FIG. 8 is a schematic structural diagram of another recording server according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a PBX according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic structural diagram of another PBX according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a recording server according to Embodiment 6 of the present invention.
  • FIG. 12 is a schematic structural diagram of a PBX according to Embodiment 7 of the present invention.
  • FIG. 13 is a schematic structural diagram of a recording system according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for recording a call according to Embodiment 1 of the present invention.
  • the method provided in this embodiment is applicable to the case of recording a call terminal in a telephone network, and the method may be
  • the recording server is implemented by a hardware and/or software method. As shown in FIG. 1 , the method in this embodiment may include:
  • the current PBX is a telephone network system used internally by the company.
  • a PBX In a system established by a PBX, a PBX usually has multiple ports, which can connect a corresponding number of user phones; and currently use the Internet Protocol based on the Internet Protocol (IP).
  • IP Internet Protocol
  • the PBX IP Private Branch Exchange, IP-PBX for short
  • the IP-PBX is physically connected to the mirror switch (Switch) and the recording server, and the recording server and the switch are respectively connected.
  • the mirroring port is connected to the mirroring port of the Switch.
  • the recording server obtains the signaling of the calling terminal from the mirroring port of the Switch.
  • the recording server is in real time from the mirroring port of the Switch.
  • the obtained signaling may be encrypted signaling or unencrypted signaling.
  • the recording server can also receive the recording instruction sent by the IP-PBX during the conversation of the telephone network system, and the recording instruction received by the recording server includes the number of the communication terminal that communicates through the PBX.
  • the recording instruction sent by the PBX is used to instruct the recording server to record the media stream of the calling terminal.
  • the PBX can send the numbers of both parties to the recording server through the recording command, instruct the recording server to record the media stream between the two parties, or send the number of one of the two parties to the recording server. Instructs the recording server to record the media stream received and sent by the call terminal corresponding to the number.
  • the IP-PBX can realize the activation of the recording function by selecting the call terminal, and thus the recorded recording command can usually select a specific function button on the call terminal to start the recording function, or
  • the telephone network system determines the recording authority of the call terminal, and automatically starts the recording function when the user with the recording authority makes a call.
  • the signaling is parsed, and the recording mode is determined according to the number in the recording instruction and the result of parsing the signaling.
  • the determined recording mode is specifically a mirror recording or a site recording.
  • the recording server parses the signaling obtained from the Switch to obtain an analysis result.
  • the signaling may be encrypted signaling or unencrypted signaling; specifically, if the signaling is not encrypted, The recording server parses the signaling to obtain a number in the signaling, and an IP address and a media port corresponding to the number, where the number is a calling number and/or a called number in the signaling.
  • the signaling is cryptographic signaling
  • the recording server cannot parse the signaling, that is, the number in the signaling cannot be obtained, and the IP address and the media port corresponding to the number; as described above for different types of The result obtained by the signaling analysis is different.
  • the result obtained by parsing different types of signaling is generally used to match the number in the recording instruction, and the recording server determines the manner of performing the recording according to the matching result, and the recording is performed.
  • the mode is specifically mirror recording or site recording.
  • the recording server may also send a notification message to the IP-PBX for notifying the IP-PBX of the determined recording mode, and the IP-PBX may also send the notification message to the recording server.
  • the corresponding confirmation message is returned.
  • the IP-PBX interacts with the command and message of the recording server through the direct connection port.
  • the recording server obtains the signaling and the media stream is transmitted through the switch mirror port.
  • the S130 of the embodiment may include: parsing the signaling, obtaining a number in the signaling, and an IP address and a media port corresponding to the number, and storing the parsed result in the recording server; The number is matched with the parsing result stored in the recording server.
  • the recording mode is determined according to the IP address transmitted through the IP address corresponding to the number and the media stream transmitted by the media port.
  • the signaling is parsed.
  • the recording server determines that the signaling obtained from the Switch is not encrypted.
  • the IP address corresponding to the number and the media stream transmitted by the media port but the determination of the recording mode of the media stream transmitted by the IP address corresponding to the number and the media port needs to be further determined according to the specific conditions of the media stream, usually
  • the transmission mode of the media stream transmitted according to the IP address and the media port corresponding to the number is transmitted through the Switch, or the point-to-point transmission between the call terminals, and whether the media stream transmitted through the Switch is encrypted to determine the recording mode.
  • the number of the recording instruction may be matched to the number in the recording instruction. Therefore, the recording server may obtain the IP address and the media port corresponding to the number in the recording instruction in the matching result. Therefore, the recording mode can be determined according to the IP address and the media stream transmitted by the media port; for example, FIG. 2 is a schematic diagram of a call recording scenario provided in the embodiment of the present invention, in which the recording is performed.
  • the server may identify the media stream transmitted through the IP address and the media port from the media stream obtained from the Switch, and analyze the identified media stream to determine whether the media stream is encrypted, and specifically determine the scenario in the scenario shown in FIG. If the media stream is not encrypted, the recording server determines the recording mode as a mirrored recording. In the recording scenario shown in FIG.
  • the signaling and media stream information can pass through the IP-PBX, that is, the call recording scene in this embodiment is intra-office.
  • the signaling in the call may be, for example, a Session Initiation Protocol (SIP) signaling
  • the media stream may be, for example, Real-time Transport Protocol (RTP) media. Therefore, the method for recording the media stream of the call terminal by the recording server is specifically recording the media stream transmitted through the IP address and the media port in the media stream obtained from the Switch.
  • SIP Session Initiation Protocol
  • RTP Real-time Transport Protocol
  • whether the media stream transmitted by the IP address and the media port is encrypted may be obtained by parsing the SIP signaling to obtain the indication information in the signaling, and when the indication information indicates When the media stream of the IP address and the media port is not encrypted, the recording server determines the recording mode as a mirrored recording.
  • FIG. 3 is a schematic diagram of another call recording scenario provided in the embodiment of the present invention.
  • the scenario shown in FIG. 3 corresponds to the IP address obtained from the media stream acquired from the Switch.
  • the media stream transmitted by the media port, and the media stream that is transmitted through the IP address and the media port from the media stream obtained from the Switch, and the recording scene when the identified media stream is encrypted is determined.
  • the recording server determines the recording mode as the site recording.
  • the recording server learns that the media stream transmitted through the IP address and the media port is encrypted, and may be configured to parse the SIP signaling to obtain the indication information in the signaling.
  • the indication information indicates that the media stream passing the IP address and the media port is in an encryption mode, and the recording server determines that the media stream is in an encryption mode according to the noise signal obtained from the Switch.
  • the media stream may be, for example, For the Secure Real-time Transport Protocol (SRTP) media stream, the recording server can obtain the SRTP media stream transmitted through the IP address and the media port from the mirror port of the Switch, but cannot obtain the obtained SRTP media stream.
  • SRTP Secure Real-time Transport Protocol
  • the SRTP media stream is decrypted, so the recording mode is determined as the site recording; on the other hand, for the IP address and the media port corresponding to the number in the recording command, the recording server fails to recognize the IP address from the media stream acquired from the Switch.
  • the signaling can also be SIP signaling, but the media stream is not limited, and the media stream can be, for example,
  • the recording server can also determine the recording mode as the site recording.
  • S140 Record a media stream of the call terminal according to the determined recording mode.
  • the recording server parses the acquired signaling, and matches the number in the received recording instruction with the analysis result of the signaling, and determines the signaling type to determine a suitable call scenario.
  • the recording mode is to record the media stream of the call terminal according to the determined recording mode, that is, the mirror recording or the site recording.
  • the recording server can also match the number in the recording instruction in the analysis result of the signaling as an example. Under the matching result, the recording server determines that the signaling is not encrypted, and is implemented in the specific implementation.
  • the recording server performs image recording on the unencrypted media stream.
  • the recording mode is confirmed as the site recording, that is, the call recording method provided in this embodiment is in the recording server. In the scenario where the condition is suitable, it is ensured that the image recording is used as much as possible.
  • the site recording is selected. Therefore, the method of the embodiment minimizes the number of times the site recording is used, to a certain extent.
  • the resource consumption of the IP-PBX is reduced, and the waste of resources for the recording system is correspondingly reduced.
  • the recording server obtains the signaling obtained from the Switch, and determines the recording mode as a mirror recording or a conference site according to the number in the recording instruction received from the PBX and the result of the signaling analysis. Recording, the recording server is configured to record the media stream of the call terminal according to the determined recording mode. In this embodiment, the recording mode suitable for the current call scene is selected according to the judgment of the signaling type and according to the specific conditions of the media stream.
  • the mirror recording is used as much as possible, that is, the number of times of the recording of the site is reduced as much as possible, and the recording mode in the prior art is solved, and the PBX resource needs to be used as the site in the recording process.
  • the PBX resource consumption is reduced to a certain extent, and the resource consumption in the recording system is correspondingly reduced.
  • the S130 may include: parsing the signaling, obtaining a number in the signaling, and an IP address and a media port corresponding to the number, and storing the parsed result.
  • the number in the recording command is matched with the analysis result stored in the recording server, and when the number in the recording command is not matched in the analysis result, the recording mode is determined as the site recording.
  • FIG. 4 is a schematic diagram of still another call recording scenario provided in the embodiment of the present invention.
  • the signaling is parsed, and the recording instruction cannot be matched in the parsing result.
  • the recording server determines that the signaling obtained from the Switch is encrypted signaling, for example, may be encrypted SIP signaling, that is, the recording server cannot receive the recording instruction after receiving the IP-PBX.
  • the number in the command matches the IP address and the media port corresponding to the number from the analysis result stored in the recording server. Therefore, the recording server can only obtain the media stream of the call terminal through the site recording.
  • the media stream of the call terminal is recorded by using the site recording.
  • the S140 may include: sending to the IP-PBX. Recording instructions of the site, so that the IP-PBX creates a site and joins the call terminal and the recording server to the site; and then records the media stream of the call terminal in the site.
  • the present embodiment may be a call within an external office, or may be an internal call of the telephone network, and does not restrict whether the media stream acquired from the Switch is encrypted; generally, the call terminal may include a calling terminal and After the IP-PBX creates a conference site, the called terminal can decrypt the encrypted media stream information received from the calling terminal and the called terminal, and send the message to the recording server after mixing.
  • the recording server obtains the decrypted media stream information from the site. As shown in Figure 3 and Figure 4, the recording server after the site is established does not need to obtain the media stream transmitted through the IP address and the media port through the mirror port of the switch. The media stream is directly obtained from the media port of the IP-PBX in the site.
  • FIG. 5 is a flowchart of a method for recording a call according to Embodiment 2 of the present invention.
  • the method provided in this embodiment is applicable to the case of recording a call terminal in a telephone network.
  • the method may be performed by a PBX.
  • the PBX is usually implemented in a hardware and/or software manner, as shown in FIG. 5, this embodiment
  • the methods can include:
  • S220 Send a recording instruction to the recording server, so that the recording server determines the recording mode according to the number and the result of parsing the signaling acquired from the mirroring switch, and records the media stream of the calling terminal according to the determined recording mode, and the determining
  • the recording method is specifically for mirror recording or venue recording.
  • the IP-PBX that is currently used is taken as an example to describe the call recording method provided by the embodiment of the present invention.
  • the IP-PBX is physically connected to the Switch and the recording server respectively, and the mirror port of the recording server and the Switch. Connection, specifically, IP-PBX and recording server
  • the command and message exchanges are sent and received through the connection port.
  • the recording server obtains the signaling and the media stream is transmitted through the switch mirror port.
  • the recording server can obtain the signaling in real time from the Switch and parse the signaling. It should be noted that, during the call of the telephone network system provided in this embodiment, the signaling obtained by the recording server from the mirror port of the Switch may be obtained in real time. For encrypted signaling or unencrypted signaling.
  • the recording server can match the analysis result of the signaling with the number in the recording instruction, and determine the recording mode according to the matching result, and further The determined recording mode can be used for mirror recording or site recording to realize monitoring of the network, that is, recording to the call terminal.
  • the recording instruction sent by the PBX is used to instruct the recording server to record the media stream of the calling terminal. It should be noted that the PBX can send the numbers of both parties to the recording server through the recording command, instruct the recording server to record the media stream between the two parties, or send the number of one of the two parties to the recording server. Instructs the recording server to record the media stream received and sent by the call terminal corresponding to the number.
  • the IP-PBX can realize the activation of the recording function by selecting the call terminal, and thus the recorded recording command can usually select a specific function button on the call terminal to start the recording function, or
  • the telephone network system determines the recording authority of the call terminal, and automatically starts the recording function when the user with the recording authority makes a call.
  • the recording server parses the signaling obtained from the Switch to obtain an analysis result.
  • the signaling may be encrypted signaling or unencrypted signaling; specifically, if the signaling is not encrypted, The recording server parses the signaling to obtain a number in the signaling, and an IP address and a media port corresponding to the number, where the number is a calling number and/or a called number in the signaling; if the signaling is For the encryption signaling, the recording server cannot parse the signaling, that is, the number in the signaling, and the IP address and media port corresponding to the number cannot be obtained; and the different types of signaling are obtained after parsing as described above. The result is different. Further, the result obtained by parsing different types of signaling is generally used to match the number in the recording instruction, and the recording server determines the manner of performing the recording according to the matching result, and the recording mode is specifically a mirror recording or Recording at the venue.
  • the recording server may also send a notification message to the IP-PBX for notifying the IP-PBX of the determined recording mode, and the IP-PBX may also send the notification message to the recording server. Returning the corresponding confirmation message.
  • the IP-PBX interacts with the command and message of the recording server through the direct connection port, and the recording server acquires signaling and The media stream is transmitted through the Switch mirror port.
  • the recording server may further determine the recording manner according to the specific situation of the media stream transmitted by the IP address corresponding to the number and the media port.
  • the specific implementation is the same as the embodiment shown in FIG. 2 and FIG. 3 above.
  • the specific implementation is the same as the embodiment shown in FIG. 4, and therefore is no longer used here. Narration.
  • the recording server of the embodiment shown in FIG. 2 determines the recording mode as a mirror recording, and the recording server of the embodiment shown in FIG. 3 and FIG.
  • the recording server 4 determines the recording mode as the site recording, and the method provided by the embodiment of the present invention, the recording server According to the matching of the recording instruction received from the IP-PBX and the parsing result of the signaling, and according to the specific conditions of the media stream transmitted through the IP address and the media port, it is guaranteed in the scene where the recording server judges that the condition is suitable as possible
  • the image recording is performed when the image recording is not applicable to the current call scene. Therefore, the method of the embodiment reduces the number of times of using the site recording to a certain extent, and reduces the resource consumption of the IP-PBX to a certain extent. This reduces the waste of resources on the recording system.
  • the PBX sends a recording command including the call terminal number to the recording server, so that the recording server determines the recording mode as a mirror recording or a conference site according to the number and the analysis result of the signaling obtained from the Switch.
  • the recording server is configured to record the media stream of the call terminal according to the determined recording mode.
  • the recording mode suitable for the current call scene is selected according to the judgment of the signaling type and according to the specific conditions of the media stream.
  • the mirror recording is used as much as possible, that is, the number of times of the recording of the site is reduced as much as possible, and the recording mode in the prior art is solved, and the PBX resource needs to be used as the site in the recording process.
  • the PBX resource consumption is reduced to a certain extent, and the resource consumption in the recording system is correspondingly reduced.
  • the recording server determines the recording mode as the site recording, and the calling terminal usually includes the calling terminal and the called terminal. Accordingly, the method in this embodiment is The S220 may further include: S230, receiving a site recording instruction sent by the recording server; S240, creating a site according to the site recording instruction, and adding the calling terminal, the called terminal, and the recording server to the site; S250, receiving the The media stream of the calling terminal and the called terminal is mixed and sent to the recording server.
  • this embodiment may be a call within an external office, or may be a telephone network.
  • the internal call does not limit whether the media stream obtained from the switch is encrypted.
  • the S250 may be replaced by: the IP-PBX is determined to be received from the calling terminal.
  • the media stream of the called terminal is encrypted, the media stream received from the calling terminal and the media stream received from the called terminal are decrypted separately, and the decrypted media stream is mixed and sent.
  • the recording server is configured to enable the recording server to obtain decrypted media stream information from the venue. As shown in Figure 3 and Figure 4, the recording server behind the site does not need to obtain the media stream through the mirror port of the switch. Instead, the media stream is obtained directly from the media port of the IP-PBX in the site.
  • FIG. 6 is a signaling flowchart of a call recording method according to Embodiment 3 of the present invention. As shown in FIG. 6, the call recording method provided in this embodiment includes:
  • the recording server acquires signaling from the switch.
  • the PBX generates a recording instruction, and sends the recording instruction to the recording server, where the recording instruction includes a number of the calling terminal.
  • the call recording method provided by the embodiment of the present invention is described by using the IP-PBX that is commonly used in the present invention as an example.
  • the recording command sent by the IP-PBX is used to instruct the recording server to record the call terminal.
  • the media stream, the number of the call terminal is the calling number and/or the called number of the calling terminal.
  • S301 and S302 have no clear sequence, and this embodiment is shown by taking S301 before S302 as an example.
  • the recording server parses the signaling to obtain a number in the signaling, an IP address and a media port corresponding to the number, and store the parsing result in the recording server.
  • the recording server matches the number in the recording instruction with the analysis result stored in the recording server, and if the number in the recording instruction is matched in the analysis result, executing S305; if the recording result is not matched in the analysis result In the number in , execute S308.
  • the number of the recording instruction is matched with the result of parsing the signaling, and the recording mode is determined according to the result of the matching, and the determined recording mode is specifically a mirror recording or a site recording; if the signaling is in the signaling
  • the result of the analysis can be matched to the number in the recording instruction, indicating that the signaling is not encrypted; if the number in the recording instruction cannot be matched in the analysis result of the signaling, the signaling is encrypted signaling.
  • the recording server determines that the signaling is not encrypted
  • the recording mode needs to be determined according to the media stream transmitted by the IP address corresponding to the number and the media port.
  • the method in this embodiment further includes:
  • the recording server obtains an IP address and a media port corresponding to the number in the recording instruction in the matching result.
  • the recording server identifies the media stream transmitted through the IP address and the media port from the media stream obtained from the Switch, and if it is determined that the media stream is not encrypted, executing S307; if it is determined that the media stream is encrypted, or if S308 is performed by not recognizing the media stream transmitted through the IP address and the media port from the media stream acquired from the Switch.
  • the media stream obtained from the Switch is identified as being encrypted by the IP address and the media port, and the indication in the signaling may be obtained by parsing the signaling. a message, when the indication information indicates that the media stream passing the IP address and the media port is not encrypted, S307 is performed; when the indication information indicates that the media stream through the IP address and the media port is encrypted, S308 is performed.
  • the recording server can also determine that the media stream is encrypted according to the noise signal obtained from the Switch.
  • the recording server determines the recording mode as a mirror recording
  • the recording server determines to record the media stream of the call terminal after the recording mode is the image recording, specifically, recording the media stream transmitted through the IP address and the media port in the media stream obtained from the Switch.
  • FIG. 2 is a schematic diagram of a call recording scenario provided by the embodiment.
  • the recording server determines the recording mode as the site recording.
  • the recording server determines that the signaling is encrypted signaling, or determines that the signaling is not encrypted, but the media stream is encrypted, or the media address obtained from the Switch is not recognized by the IP address and the media.
  • the recording server determines the recording mode as the site recording. As shown in FIG. 3 and FIG. 4, the recording recording scenario of the call is also provided in this embodiment.
  • the embodiment further includes after S308:
  • the recording server sends a site recording instruction to the PBX.
  • the PBX creates a conference site according to the recording instruction of the site
  • the call terminal and the recording server join the conference site;
  • the call terminal in this embodiment usually includes a calling call terminal and a called call terminal.
  • the PBX mixes the media stream received from the call terminal and sends the media stream to the recording server.
  • the media stream that receives the calling terminal and the media stream that is received from the called terminal may also be used.
  • the decryption is performed separately, and the decrypted media stream is mixed and sent to the recording server.
  • the method provided in this embodiment further includes: S313, the PBX receives the recording start command sent by the call terminal; correspondingly, the S302 may be replaced by: the PBX sends a recording instruction to the recording server according to the recording start command.
  • the method provided in this embodiment may further include: S314, the PBX returns an acknowledgement message to the recording server according to the active recording instruction;
  • the recording server obtains the signaling obtained from the Switch, and determines the recording mode as a mirror recording or a conference site according to the number in the recording instruction received from the PBX and the result of the signaling analysis. Recording, the recording server is configured to record the media stream of the call terminal according to the determined recording mode. In this embodiment, the recording mode suitable for the current call scene is selected according to the judgment of the signaling type and according to the specific conditions of the media stream.
  • the mirror recording is used as much as possible, that is, the number of times of the recording of the site is reduced as much as possible, and the recording mode in the prior art is solved, and the PBX resource needs to be used as the site in the recording process.
  • the PBX resource consumption is reduced to a certain extent, and the resource consumption in the recording system is correspondingly reduced.
  • FIG. 7 is a schematic structural diagram of a recording server according to Embodiment 4 of the present invention.
  • the recording server provided in this embodiment specifically includes: an obtaining module 11 , a receiving module 12 , a parsing module 13 , and a recording module 14 .
  • the obtaining module 11 is configured to obtain signaling from the mirror switch.
  • the receiving module 12 is configured to receive a recording instruction sent by the PBX, where the recording instruction includes a number of the calling terminal.
  • the parsing module 13 is configured to parse the signaling acquired by the obtaining module 11 and determine the recording mode according to the number in the recording instruction received by the receiving module 12 and the result of parsing the signaling.
  • the determined recording method is specifically a mirror recording or a venue recording.
  • the recording module 14 is configured to record the media stream of the call terminal according to the recording mode determined by the parsing module 13.
  • FIG. 8 is a schematic structural diagram of another recording server according to an embodiment of the present invention.
  • the recording server provided in this embodiment is based on the foregoing FIG. 7
  • the parsing module 13 includes: a first parsing unit 15 configured to parse the signaling acquired by the obtaining module 11 to obtain the signaling. a number, and a network association IP address and a media port corresponding to the number, and storing the parsed result in the recording server; the first matching unit 16 is configured to receive the number in the recording instruction received by the receiving module 12 and the recording server The stored parsing result is matched.
  • the recording mode is determined according to the IP address transmitted by the IP address corresponding to the number and the media stream transmitted by the media port.
  • the first matching unit 16 is configured to determine, according to the IP address corresponding to the IP address and the media stream that is transmitted by the media port, the recording mode, where the method includes: obtaining the number corresponding to the recording instruction in the matching result. IP address and media port; identify the media stream transmitted through the IP address and the media port from the media stream obtained from the mirror switch; analyze the identified media stream to determine whether the media stream is encrypted, and determine When the media stream is not encrypted, the recording mode is determined to be a mirrored recording; correspondingly, the recording module 14 is specifically configured to record the media stream transmitted through the IP address and the media port in the media stream obtained from the mirror switch.
  • the first matching unit 16 is configured to determine a recording mode according to the media stream that is transmitted by using the IP address and the media port corresponding to the number, and specifically includes: obtaining an IP address and a media port corresponding to the number in the recording instruction in the matching result. If the media stream transmitted through the IP address and the media port is not recognized from the media stream obtained from the mirror switch, or the media transmitted through the IP address and the media port is identified from the media stream obtained from the mirror switch And determining that the identified media stream is encrypted, and determining that the recording mode is a site recording.
  • the first parsing unit 15 provided by the embodiment of the present invention is further configured to parse the signaling obtained by the obtaining module 11 to obtain the indication information in the signaling.
  • the parsing module 13 may further include: determining unit 17 And when the indication information acquired by the first parsing unit 15 indicates that the media stream passing the IP address and the media port is not encrypted, determining that the recording mode is a mirror recording; or, when the indication information acquired by the first parsing unit 15 indicates When the media stream of the IP address and the media port is encrypted, the recording mode is determined to be the site recording.
  • the recording server provided by the embodiment of the present invention is used to perform the steps shown in FIG. 1 and various possible implementation methods of the embodiment shown in FIG. 1 , and has corresponding functional modules.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the parsing module 13 includes: a second parsing unit, configured to parse the signaling acquired by the obtaining module 11 to obtain a number in the signaling, and an IP address corresponding to the number and a media port, and storing the parsed result in the recording server; the second matching unit is configured to match the number in the recording instruction received by the receiving module 12 with the parsing result stored in the recording server, and the matching result is not matched in the parsing result.
  • the recording mode is determined as the site recording.
  • the recording module 14 may include: a sending unit, configured to send a site recording instruction to the PBX, so that the PBX creates a conference site and the calling terminal and The recording server is added to the site; the recording unit is used to record the media stream of the call terminal in the site.
  • FIG. 9 is a schematic structural diagram of a PBX according to Embodiment 5 of the present invention.
  • the PBX provided in this embodiment specifically includes: a recording indication module 21 and a sending module 22 .
  • the recording indication module 21 is configured to generate a recording instruction, where the recording instruction includes a number of the calling terminal.
  • the sending module 22 is configured to send a recording instruction to the recording server, so that the recording server determines the recording mode according to the number and the result of parsing the signaling acquired from the mirroring switch, and media streams of the calling terminal according to the determined recording mode. Recording is performed, and the determined recording mode is specifically a mirror recording or a venue recording.
  • FIG. 10 is a schematic structural diagram of another PBX according to an embodiment of the present invention.
  • the PBX provided in this embodiment is based on the foregoing FIG. 9.
  • the call terminal usually includes a calling terminal and a called terminal.
  • the PBX provided in this embodiment further includes: a receiving module 23 After the sending module 22 sends the recording command to the recording server, the receiving site recording command is sent by the recording server; the creating module 24 is configured to create a meeting site according to the site recording command received by the receiving module 23, and the calling terminal, The called call terminal and the recording server join the conference site; the media processing module 25 is configured to receive from the calling terminal and be The media stream of the call terminal is mixed; correspondingly, the sending module 22 is further configured to send the mixed media stream to the recording server.
  • the media processing module 25 specifically determines that the media stream received from the calling terminal and the called terminal is encrypted. Decrypting the media stream received from the calling terminal and the media stream received from the called terminal, and mixing the decrypted media stream.
  • the PBX provided by the embodiment of the present invention is used to perform the steps shown in FIG. 5 and the various possible implementation methods of the embodiment shown in FIG. 5, and has corresponding functional modules.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of a recording server according to Embodiment 6 of the present invention.
  • the recording server provided in this embodiment specifically includes a processor 31, a receiver 32, and a recorder 33.
  • the processor 31 is configured to obtain signaling from the mirror switch.
  • the receiver 32 is configured to receive a recording instruction sent by the PBX, where the recording instruction includes a number of the calling terminal.
  • the processor 31 is further configured to parse the signaling, and determine a recording mode according to the number in the recording instruction received by the receiver 32 and the result of parsing the signaling, and the determined recording mode is specifically a mirror recording or a conference site. recording.
  • the recorder 33 is configured to record the media stream of the call terminal according to the recording mode determined by the processor 31.
  • the processor 31 is further configured to parse the signaling, and determine a recording mode according to the number in the recording instruction received by the receiver 32 and the result of parsing the signaling, specifically: processing
  • the device 31 is configured to parse the signaling, obtain the number in the signaling, and the network association IP address and the media port corresponding to the number, and store the parsed result in the recording server; and then receive the recording received by the receiver 32.
  • the number in the command matches the analysis result stored in the recording server.
  • the recording mode is determined according to the media stream transmitted through the IP address corresponding to the number and the media port.
  • the processor 31 is configured to determine a recording mode according to the media stream that is transmitted by using the IP address and the media port corresponding to the number, and specifically includes: acquiring the recording in the matching result. An IP address and a media port corresponding to the number in the command; identifying a media stream transmitted through the IP address and the media port from the media stream obtained from the mirror switch; analyzing the identified media stream to determine whether the media stream is encrypted And determining that the recording mode is a mirror recording when it is determined that the media stream is not encrypted; correspondingly, the recorder 33 is specifically configured to use the media stream that is transmitted through the IP address and the media port in the media stream obtained from the mirror switch. Recording.
  • the processor 31 is configured to determine a recording mode according to the media stream that is transmitted by using the IP address and the media port corresponding to the number, and specifically includes: obtaining an IP address and a media port corresponding to the number in the recording instruction in the matching result; Recognizing a media stream transmitted through the IP address and the media port from the media stream obtained from the mirror switch, or identifying a media stream transmitted through the IP address and the media port from the media stream obtained from the mirror switch, And determining that the identified media stream is encrypted, and determining that the recording mode is a site recording.
  • the processor 31 of the embodiment of the present invention is further configured to parse the signaling to obtain the indication information in the signaling.
  • the processor 31 is further configured to: when the indication information indicates the IP address and When the media stream of the media port is not encrypted, it is determined that the recording mode is a mirror recording; or when the indication information indicates that the media stream through the IP address and the media port is encrypted, the recording mode is determined to be a site recording.
  • the processor 31 is further configured to parse the signaling, and determine a recording mode according to the number in the recording instruction received by the receiver 32 and the result of parsing the signaling. Specifically, the processor 31 is configured to parse the signaling, obtain the number in the signaling, and the IP address and the media port corresponding to the number, and store the parsed result in the recording server; and then receive the receiver 32. The number in the recording command is matched with the analysis result stored in the recording server. When the number in the recording command is not matched in the analysis result, the recording mode is determined as the site recording.
  • the recorder 33 when the recording mode is determined to be a site recording, the recorder 33 is further configured to send a site recording instruction to the PBX, so that the PBX creates a site and joins the calling terminal and the recording server.
  • the recording server provided by the embodiment of the present invention is used to perform the steps shown in FIG. 1 and various possible implementation methods of the embodiment shown in FIG. 1 , and has corresponding physical devices.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of a PBX according to Embodiment 7 of the present invention.
  • the PBX provided in this embodiment specifically includes a processor 41, a transmitter 42, and a receiver 43.
  • the processor 41 is configured to generate a recording instruction, where the recording instruction includes a number of the calling terminal.
  • the transmitter 42 is configured to send a recording instruction to the recording server, so that the recording server determines the recording mode according to the number and the result of parsing the signaling acquired from the mirroring switch, and the media stream of the calling terminal according to the determined recording manner Recording is performed, and the determined recording mode is specifically a mirror recording or a venue recording.
  • the PBX provided by the embodiment of the present invention is also described by taking the IP-PBX currently in use as an example.
  • the call terminal usually includes a calling call terminal and a called call terminal.
  • the receiver 43 is configured to receive a site recording command sent by the recording server after the transmitter 42 sends the recording command to the recording server; 41.
  • the method is further configured to create a site according to the site recording command received by the receiver 43 and add the calling terminal, the called terminal, and the recording server to the site; further, the processor 41 is further configured to The media stream received from the calling terminal and the called terminal is mixed; correspondingly, the transmitter 42 is further configured to send the mixed media stream to the recording server.
  • the processor 41 when the media stream in the site is an encrypted media stream, the processor 41 is further configured to mix the media streams received from the calling terminal and the called terminal.
  • the sound specifically includes: a processor 41, configured to receive and receive a media stream received from the calling terminal when the media stream received from the calling terminal and the called terminal is encrypted The media stream of the call terminal is decrypted separately, and the decrypted media stream is mixed.
  • the PBX provided by the embodiment of the present invention is used to perform the steps shown in FIG. 5 and the various possible implementation methods of the embodiment shown in FIG. 5, and has corresponding physical devices.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of a recording system according to an embodiment of the present invention.
  • the recording system provided in this embodiment specifically includes: a recording server 51 and a PBX 52.
  • the recording server 51 is configured to acquire signaling from the mirror switch.
  • the PBX 52 is configured to generate a recording instruction, and send the recording instruction to the recording server, where the recording instruction includes a number of the calling terminal.
  • the recording server 51 is further configured to receive a recording instruction sent by the user-level switch PBX, and the letter Determining, and determining a recording mode according to the number in the recording instruction and the result of parsing the signaling, and the determined recording mode is specifically a mirror recording or a venue recording; and further, the media stream of the call terminal according to the determined recording manner. Recording.
  • the recording server 51 is further configured to parse the signaling, and determine the recording mode according to the number in the recording instruction and the result of parsing the signaling, and specifically includes: a recording server 51, configured to: Parsing the signaling, obtaining the number in the signaling, and the network association IP address and the media port corresponding to the number, and storing the parsed result in the recording server; and storing the number in the recording instruction and the recording server 51 The result of the analysis is matched. When the number in the recording command is matched in the analysis result, the recording mode is determined according to the IP address transmitted through the IP address corresponding to the number and the media stream transmitted by the media port.
  • the recording server 51 is configured to determine the recording mode according to the media stream transmitted by the IP address and the media port corresponding to the number, and specifically includes: obtaining the IP corresponding to the number in the recording instruction in the matching result. An address and a media port; identifying, by the media stream obtained from the mirror switch, a media stream transmitted through the IP address and the media port; analyzing the identified media stream to determine whether the media stream is encrypted, and determining the media When the stream is not encrypted, it is determined that the recording mode is a mirrored recording; correspondingly, the recording server 51 is further configured to record the media stream of the call terminal according to the determined recording mode, and specifically includes: a recording server 51, configured to acquire the image from the image The media stream of the switch is recorded by the media stream transmitted by the IP address and the media port.
  • the recording server 51 is configured to determine the recording mode according to the media stream transmitted by the IP address and the media port corresponding to the number, and specifically includes: obtaining an IP address and a media port corresponding to the number in the recording instruction in the matching result; Recognizing a media stream transmitted through the IP address and the media port from the media stream obtained from the mirror switch, or identifying a media stream transmitted through the IP address and the media port from the media stream obtained from the mirror switch, And determining that the identified media stream is encrypted, and determining that the recording mode is a site recording.
  • the recording server 51 provided by the embodiment of the present invention is further configured to parse the signaling to obtain the indication information in the signaling; when the indication information indicates that the media stream passing the IP address and the media port is not encrypted, determining The recording mode is a mirror recording; or when the indication information indicates that the media stream passing through the IP address and the media port is encrypted, the recording mode is determined to be a site recording.
  • the recording system provided by the embodiment of the present invention is a recording system corresponding to the recording server provided by the first embodiment of the present invention and the PBX provided by the second embodiment, and the implementation principle and technical effect thereof are similar. I won't go into details here.
  • the recording server 51 is further configured to parse the signaling, and determine the recording mode according to the number in the recording instruction and the result of parsing the signaling, specifically: the recording server 51.
  • the method is used to parse signaling, obtain a number in the signaling, and a network association IP address and a media port corresponding to the number, and store the parsed result in a recording server; and further record the number and recording in the recording instruction.
  • the analysis result stored in the server 51 is matched, and when the number in the recording command is not matched in the analysis result, the recording mode is determined as the site recording.
  • the recording server 51 is further configured to record the media stream of the call terminal according to the determined recording mode, specifically: the recording server 51, Sending a site recording command to the PBX 52; and recording the media stream of the calling terminal in the site after the PBX 52 creates the site; usually, the calling terminal includes a calling terminal and a called terminal; correspondingly, the PBX 52, Receiving a site recording command sent by the recording server 51; creating a site according to the site recording command, and adding the calling terminal, the called terminal, and the recording server 51 to the site; and receiving the calling terminal from the calling terminal
  • the media stream of the called call terminal is mixed and sent to the recording server.
  • the PBX 52 when the media stream in the site is an encrypted media stream, the PBX 52 is further configured to: after the media stream received from the calling terminal and the called terminal is mixed, sent to the media stream.
  • the recording server specifically includes: a media stream received from the calling terminal and a medium received from the called terminal when determining that the media stream received from the calling terminal and the called terminal is encrypted
  • the streams are decrypted separately, and the decrypted media stream is mixed and sent to the recording server.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种通话录音方法、录音服务器、用户级交换机及录音系统。本发明提供的通话录音方法，包括：从镜像交换机获取信令；接收用户级交换机PBX发送的录音指令，所述录音指令中包括通话终端的号码；对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音；根据所述确定的录音方式对所述通话终端的媒体流进行录音。本发明实施例解决了现有技术中的录音方式，在录音过程中需要利用PBX的资源做会场，增加了该PBX的资源消耗的问题。

Description

通话录音方法、录音服务器、用户级交换机及录音系统
本申请要求于2014年4月11日提交中国专利局、申请号为201410145226.0、发明名称为“通话录音方法、录音服务器、用户级交换机及录音系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信技术，尤其涉及一种通话录音方法、录音服务器、用户级交换机及录音系统。
背景技术
目前，在统一通信(Unified Communications，简称为：UC)或呼叫中心(Call Center，简称为：CC)应用场景中，对通话终端的内部通话和外部通话进行录音时，通常需要通过用户级交换机(Private Branch Exchange，简称为：PBX)创建会场，将通话终端和录音服务器加入会场，并将会场中通话终端的媒体流发送给录音服务器以实现会场录音。
现有技术中的录音方式，在录音过程中需要利用PBX的资源做会场，增加了该PBX的资源消耗。
发明内容
本发明实施例提供一种通话录音方法、录音服务器、用户级交换机及录音系统，以解决现有技术中的录音方式，在录音过程中需要利用PBX的资源做会场，增加了该PBX的资源消耗的问题。
第一方面，本发明实施例提供一种通话录音方法，包括：
从镜像交换机获取信令；
接收用户级交换机PBX发送的录音指令，所述录音指令中包括通话终端的号码；
对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音；
根据所述确定的录音方式对所述通话终端的媒体流进行录音。
在第一方面的第一种可能的实现方式中，所述对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，包括：
对所述信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；
将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中匹配到所述录音指令中的号码时，根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
根据第一方面的第一种可能的实现方式，在第二种可能的实现方式中，所述根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，包括：
在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；
从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流；
对识别出的媒体流进行分析以判断所述媒体流是否加密，并在判断出所述媒体流未加密时确定所述录音方式为镜像录音；
所述根据所述确定的录音方式对所述通话终端的媒体流进行录音，包括：
对获取自所述镜像交换机的媒体流中通过所述IP地址和媒体端口传输的媒体流进行录音。
根据第一方面的第一种可能的实现方式，在第三种可能的实现方式中，所述根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，包括：
在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；
如果从获取自所述镜像交换机的媒体流中未识别出通过所述IP地址和媒体端口传输的媒体流，或者，从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流，且判断出所述识别出的媒体流已加密，确定所述录音方式为会场录音。
根据第一方面的第一种可能的实现方式，在第四种可能的实现方式中，所述方法还包括：
对所述信令进行解析获取所述信令中的指示信息；
当所述指示信息指示通过所述IP地址和媒体端口的媒体流未加密时，确定所述录音方式为镜像录音；或者，
当所述指示信息指示通过所述IP地址和媒体端口的媒体流已加密时，确定所述录音方式为会场录音。
在第一方面的第五种可能的实现方式中，所述对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，包括：
对所述信令进行解析获取所述信令中的号码，以及所述号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；
将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中未匹配到所述录音指令中的号码时，将所述录音方式确定为会场录音。
根据第一方面的第三种到第五种可能的实现方式中任意一种，在第六种可能的实现方式中，所述根据所述确定的录音方式对所述通话终端的媒体流进行录音，包括：
向所述PBX发送会场录音指令，以使所述PBX创建会场并将所述通话终端和所述录音服务器加入所述会场；
对所述会场中的所述通话终端的媒体流进行录音。
第二方面，本发明实施例提供一种通话录音方法，包括：
生成录音指令，所述录音指令包括通话终端的号码；
向录音服务器发送录音指令，以使所述录音服务器根据所述号码和对从镜像交换机获取的信令进行解析的结果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音。
在第二方面的第一种可能的实现方式中，所述通话终端包括主叫通话终端和被叫通话终端，所述向录音服务器发送录音指令之后，还包括：
接收所述录音服务器发送的会场录音指令；
根据所述会场录音指令创建会场，并将所述主叫通话终端、所述被叫通 话终端和所述录音服务器加入所述会场；
对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器。
根据第二方面或第二方面的第一种可能的实现方式，在第二种可能的实现方式中，所述对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器，包括：
在确定接收自所述主叫通话终端和所述被叫通话终端的媒体流已加密时，对接收自所述主叫通话终端的媒体流和接收自被叫通话终端的媒体流分别进行解密，并对所述解密后的媒体流进行混音后发送给所述录音服务器。
第三方面，本发明实施例提供一种录音服务器，包括：
获取模块，用于从镜像交换机获取信令；
接收模块，用于接收用户级交换机PBX发送的录音指令，所述录音指令中包括通话终端的号码；
解析模块，用于对所述获取模块获取的信令进行解析，并根据所述接收模块接收的录音指令中的号码和对所述信令进行解析的结果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音；
录音模块，用于根据所述解析模块确定的录音方式对所述通话终端的媒体流进行录音。
在第三方面的第一种可能的实现方式中，所述解析模块，包括：
第一解析单元，用于对所述获取模块获取的信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；
第一匹配单元，用于将所述接收模块接收的录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中匹配到所述录音指令中的号码时，根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
根据第三方面的第一种可能的实现方式，在第二种可能的实现方式中，所述第一匹配单元用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；从获取自所述镜像交换机的媒体流中识别出通 过所述IP地址和媒体端口传输的媒体流；对识别出的媒体流进行分析以判断所述媒体流是否加密，并在判断出所述媒体流未加密时确定所述录音方式为镜像录音；
则所述录音模块，具体用于对获取自所述镜像交换机的媒体流中通过所述IP地址和媒体端口传输的媒体流进行录音。
根据第三方面的第一种可能的实现方式，在第三种可能的实现方式中，所述第一匹配单元用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；如果从获取自所述镜像交换机的媒体流中未识别出通过所述IP地址和媒体端口传输的媒体流，或者，从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流，且判断出所述识别出的媒体流已加密，确定所述录音方式为会场录音。
根据第三方面的第一种可能的实现方式，在第四种可能的实现方式中，所述第一解析单元，还用于对所述获取模块获取的信令进行解析获取所述信令中的指示信息；
所述解析模块还包括：确定单元，用于当所述第一解析单元获取的指示信息指示通过所述IP地址和媒体端口的媒体流未加密时，确定所述录音方式为镜像录音；或者，当所述第一解析单元获取的指示信息指示通过所述IP地址和媒体端口的媒体流已加密时，确定所述录音方式为会场录音。
在第三方面的第五种可能的实现方式中，所述解析模块，包括：
第二解析单元，用于对所述获取模块获取的信令进行解析获取所述信令中的号码，以及所述号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；
第二匹配单元，用于将所述接收模块接收的录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中未匹配到所述录音指令中的号码时，将所述录音方式确定为会场录音。
根据第三方面的第三种到第五种可能的实现方式中任意一种，在第六种可能的实现方式中，所述录音模块，包括：
发送单元，用于向所述PBX发送会场录音指令，以使所述PBX创建会场并将所述通话终端和所述录音服务器加入所述会场；
录音单元，用于对所述会场中的所述通话终端的媒体流进行录音。
第四方面，本发明实施例提供一种用户级交换机，包括：
录音指示模块，用于生成录音指令，所述录音指令包括通话终端的号码；
发送模块，用于向录音服务器发送录音指令，以使所述录音服务器根据所述号码和对从镜像交换机获取的信令进行解析的结果确定录音方式，并根据所述确定的录音方式对所述通话终端的媒体流进行录音，所述确定的录音方式具体为镜像录音或会场录音。
在第四方面的第一种可能的实现方式中，所述通话终端包括主叫通话终端和被叫通话终端，所述用户级交换机PBX还包括：接收模块，用于在所述发送模块向录音服务器发送录音指令之后，接收所述录音服务器发送的会场录音指令；
创建模块，用于根据所述接收模块接收的会场录音指令创建会场，并将所述主叫通话终端、所述被叫通话终端和所述录音服务器加入所述会场；
媒体处理模块，用于对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音；
所述发送模块，还用于将所述混音后的媒体流发送给所述录音服务器。
根据第四方面或第四方面的第一种可能的实现方式，在第二种可能的实现方式中，所述媒体处理模块，具体用于在确定接收自所述主叫通话终端和所述被叫通话终端的媒体流已加密时，对接收自所述主叫通话终端的媒体流和接收自所述被叫通话终端的媒体流分别进行解密，并对所述解密后的媒体流进行混音。
第五方面，本发明实施例提供一种录音系统，包括：录音服务器和用户级交换机PBX；
其中，录音服务器，用于从镜像交换机获取信令；
所述PBX，用于生成录音指令，所述录音指令包括通话终端的号码，并向录音服务器发送所述录音指令；
所述录音服务器，还用于接收用户级交换机PBX发送的录音指令，对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音；进而根据所述确定的录音方式对所述通话终端的媒体流进行录音。
在第五方面的第一种可能的实现方式中，所述录音服务器还用于对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，具体包括：
所述录音服务器，用于对所述信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中匹配到所述录音指令中的号码时，根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
根据第五方面的第一种可能的实现方式，在第二种可能的实现方式中，所述录音服务器用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流；对识别出的媒体流进行分析以判断所述媒体流是否加密，并在判断出所述媒体流未加密时确定所述录音方式为镜像录音；
所述录音服务器还用于根据所述确定的录音方式对所述通话终端的媒体流进行录音，具体包括：所述录音服务器，用于对获取自所述镜像交换机的媒体流中通过所述IP地址和媒体端口传输的媒体流进行录音。
根据第五方面的第一种可能的实现方式，在第三种可能的实现方式中，所述录音服务器用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；如果从获取自所述镜像交换机的媒体流中未识别出通过所述IP地址和媒体端口传输的媒体流，或者，从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流，且判断出所述识别出的媒体流已加密，确定所述录音方式为会场录音。
根据第五方面的第一种可能的实现方式，在第四种可能的实现方式中，所述录音服务器，还用于对所述信令进行解析获取所述信令中的指示信息；当所述指示信息指示通过所述IP地址和媒体端口的媒体流未加密时，确定所述录音方式为镜像录音；或者，当所述指示信息指示通过所述IP地址和媒体端口的媒体流已加密时，确定所述录音方式为会场录音。
在第五方面的第五种可能的实现方式中，所述录音服务器还用于对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，具体包括：
所述录音服务器，用于对所述信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中未匹配到所述录音指令中的号码时，将所述录音方式确定为会场录音。
根据第五方面的第三种到第五种可能的实现方式中任意一种，在第六种可能的实现方式中，所述录音服务器还用于根据所述确定的录音方式对所述通话终端的媒体流进行录音，具体包括：所述录音服务器，用于向所述PBX发送会场录音指令；在所述PBX创建会场后对所述会场中的所述通话终端的媒体流进行录音；
所述通话终端包括主叫通话终端和被叫通话终端；所述PBX，还用于接收所述录音服务器发送的会场录音指令；根据所述会场录音指令创建所述会场，并将所述主叫通话终端、所述被叫通话终端和所述录音服务器加入所述会场；进而对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器。
根据第五方面的第六种可能的实现方式，在第七种可能的实现方式中，所述PBX还用于对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器，具体包括：
所述PBX，用于在确定接收自所述主叫通话终端和所述被叫通话终端的媒体流已加密时，对接收自所述主叫通话终端的媒体流和接收自所述被叫通话终端的媒体流分别进行解密，并对所述解密后的媒体流进行混音后发送给所述录音服务器。
本发明实施例所提供的通话录音方法、录音服务器、用户级交换机及录音系统，通过录音服务器对从镜像交换机获取的信令进行解析，并根据从PBX接收的录音指令中的号码和对信令解析的结果将录音方式确定为镜像录音或会场录音，实现了录音服务器根据确定的录音方式对通话终端的媒体流进行录音，而不是统一通过会场录音的方式进行录音，从而在一定程度上降低了 PBX的资源消耗。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例一所提供的一种通话录音方法的流程图；
图2为本发明实施例中所提供的一种通话录音场景的示意图；
图3为本发明实施例中所提供的另一种通话录音场景的示意图；
图4为本发明实施例中所提供的又一种通话录音场景的示意图；
图5为本发明实施例二所提供的一种通话录音方法的流程图；
图6为本发明实施例三所提供的一种通话录音方法的信令流程图；
图7为本发明实施例四所提供的一种录音服务器的结构示意图；
图8为本发明实施例所提供的另一种录音服务器的结构示意图；
图9为本发明实施例五所提供的一种PBX的结构示意图；
图10为本发明实施例所提供的另一种PBX的结构示意图；
图11为本发明实施例六所提供的一种录音服务器的结构示意图；
图12为本发明实施例七所提供的一种PBX的结构示意图；
图13为本发明实施例所提供的一种录音系统的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一
图1为本发明实施例一所提供的一种通话录音方法的流程图。本实施例提供的方法适用于对电话网络中的通话终端进行录音的情况，该方法可以由 录音服务器执行，该录音服务器通常以硬件和/或软件的方法来实现，如图1所示，本实施例的方法可以包括：
S110，从镜像交换机获取信令。
目前的PBX是公司内部使用的电话网络系统，在通过PBX建立的系统中，一个PBX通常有多个端口，可以连接相应数量的用户电话；以目前通常使用的基于网协IP(Internet Protocol)的PBX(IP Private Branch exchange，简称为：IP-PBX)为例，对本发明实施例提供的通话录音方法进行说明，IP-PBX分别与镜像交换机(Switch)和录音服务器通过物理连接，录音服务器与Switch的镜像端口连接，具体地，录音服务器从Switch的镜像端口获取通话终端的信令，需要说明的是，在本实施例中，在电话网络系统的通话过程中，录音服务器从Switch的镜像端口实时获取的信令可能为加密信令或未加密信令。
S120，接收PBX发送的录音指令，该录音指令中包括该通话终端的号码。
在本实施例中，录音服务器在电话网络系统的通话过程中，还可以接收IP-PBX发送的录音指令，录音服务器接收到的录音指令中包括通过所述PBX进行通信的通话终端的号码。PBX发送的该录音指令，用于指示该录音服务器录制该通话终端的媒体流。需要说明的是，PBX可以将通话双方的号码都通过该录音指令发送给录音服务器，指示录音服务器录制通话双方之间的媒体流；也可以仅将通话双方中的一方的号码发送给录音服务器，指示录音服务器录制该号码对应的通话终端接收和发送的媒体流。
需要说明的是，本实施例中IP-PBX可以通过对通话终端的选择实现录音功能的启动，从而发送的录音指令，通常可以对通话终端上的特定功能按键进行选择启动录音功能，也可以由电话网络系统根据对通话终端的录音权限进行判定，对具有录音权限的用户在进行通话时自动启动录音功能。
S130，对该信令进行解析，并根据该录音指令中的号码和对该信令进行解析的结果确定录音方式，该确定的录音方式具体为镜像录音或会场录音。
在本实施例中，录音服务器对获取自Switch的信令进行解析可以得到解析结果，如上所述，该信令可以为加密信令或未加密信令；具体地，若该信令未加密，则录音服务器对该信令进行解析可以获取该信令中的号码，以及该号码对应的IP地址和媒体端口，该号码为信令中的主叫号码和/或被叫号 码；若该信令为加密信令，则录音服务器不能对该信令进行解析，即不能获取到信令中的号码，以及该号码对应的IP地址和媒体端口；如上所述对不同类型的信令解析后获取的结果不同，进一步地，对不同类型的信令进行解析后获取的结果通常用于与录音指令中的号码进行匹配，录音服务器根据匹配的结果确定执行录音的方式，该录音方式具体为镜像录音或会场录音。
本实施例在具体实现中，录音服务器确定录音方式后还可以向IP-PBX发送通知消息，用于向IP-PBX通知已确定的录音方式，IP-PBX接收到通知消息后还可以向录音服务器返回相应的确认消息，在实际使用中，IP-PBX与录音服务器的指令和消息交互是通过直连端口收发的，录音服务器获取信令和媒体流的则是通过Switch镜像端口传输的。
可选地，本实施例的S130可以包括：对信令进行解析获取信令中的号码，以及该号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；将录音指令中的号码与录音服务器中存储的解析结果进行匹配，在解析结果中匹配到录音指令中的号码时，根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
在本实施例中，对信令进行解析，在该解析结果中可以匹配到录音指令中的号码时，录音服务器则判断出从Switch获取的信令未加密，因此，可以从Switch镜像端口获取通过与该号码对应的IP地址和媒体端口传输的媒体流，但是对通过该号码对应的IP地址和媒体端口传输的媒体流的录音方式的确定，还需要进一步根据媒体流的具体情况进行确定，通常地可以根据通过该号码对应的IP地址和媒体端口传输的媒体流的传输方式是通过Switch传输，还是在通话终端之间点对点的传输，以及通过Switch传输的媒体流是否加密来确定录音方式。
本实施例在具体实现中，由于可以在信令的解析结果中匹配到录音指令中的号码，因此，该录音服务器具体可以在匹配结果中获取到录音指令中号码对应的IP地址和媒体端口，从而可以根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式；举例来说，图2为本发明实施例中所提供的一种通话录音场景的示意图，在该场景中，录音服务器可以从获取自Switch的媒体流中识别出通过该IP地址和媒体端口传输的媒体流，并对识别出的媒体流进行分析以判断该媒体流是否加密，图2所示场景中具体判断出 该媒体流未加密，则录音服务器将录音方式确定为镜像录音，在图2所示的录音场景中，信令和媒体流信息均可以经过IP-PBX，即本实施例的通话录音场景为局内局外通话，并且通话中的信令例如可以为会话发起协议(Session Initiation Protocol，简称为：SIP)信令，媒体流例如可以为实时传输协议(Real-time Transport Protocol，简称为：RTP)媒体流，因此，录音服务器对通话终端的媒体流进行录音的方式，具体为对获取自Switch的媒体流中通过该IP地址和媒体端口传输的媒体流进行录音。需要说明的是，本实施例中对通过该IP地址和媒体端口传输的媒体流是否加密的判断，还可以通过对SIP信令进行解析获取该信令中的指示信息，当该指示信息指示通过该IP地址和媒体端口的媒体流未加密时，录音服务器则将录音方式确定为镜像录音。
再举例来说，图3为本发明实施例中所提供的另一种通话录音场景的示意图，图3所示的场景，分别对应从获取自Switch的媒体流中未识别出通过该IP地址和媒体端口传输的媒体流，以及从获取自Switch的媒体流中识别出通过该IP地址和媒体端口传输的媒体流，且判断出该识别出的媒体流已加密时的录音场景，在这两种场景下，录音服务器均将录音方式确定为会场录音。
需要说明的是，在图3所示场景中，一方面，录音服务器获知通过该IP地址和媒体端口传输的媒体流已加密，可以是对SIP信令进行解析获取该信令中的指示信息，该指示信息指示通过该IP地址和媒体端口的媒体流为加密模式，也可以是录音服务器根据从Switch中获取到噪声信号判断出该媒体流为加密模式，在该通话场景中，媒体流例如可以为安全实时传输协议(Secure Real-time Transport Protocol，简称为：SRTP)媒体流，录音服务器虽然可以从Switch的镜像端口获取通过该IP地址和媒体端口传输的该SRTP媒体流，但是无法对获取的该SRTP媒体流进行解密，因此将录音方式确定为会场录音；另一方面，对于录音指令中号码对应的IP地址和媒体端口，录音服务器从获取自Switch的媒体流中未能识别出通过该IP地址和媒体端口的媒体流，说明通话终端的媒体流不经过Switch，也就是说通话终端之间点对点的互通不经过IP-PBX，即该通话场景为内部通话，在该通话场景中，信令同样可以为SIP信令，但不限制媒体流是否加密，媒体流例如可以为RTP媒体流或SRTP媒体流，为了实现对内部通话的录音，录音服务器同样可以将录音方式确定为会场录音。
S140，根据确定的录音方式对通话终端的媒体流进行录音。
在本实施例中，录音服务器在对获取的信令进行解析，并将接收的录音指令中的号码与对信令的解析结果进行匹配，判断出该信令类型后，确定出适合通话场景的录音方式，具体根据已确定的录音方式，即镜像录音或会场录音对通话终端的媒体流进行录音。
在本实施例中，同样以上述录音服务器在对信令的解析结果中可以匹配到录音指令中的号码为例予以说明，在该匹配结果下，录音服务器判断出信令未加密，在具体实现中，录音服务器对未加密的媒体流进行镜像录音，在上述其它通话场景中录音服务器无法采用镜像录音时，才将录音方式确认为会场录音，即本实施例提供的通话录音方法，在录音服务器判断出条件适合的场景中保证尽可能的采用镜像录音，当镜像录音不能适用于当前通话场景时选择会场录音，因此，本实施例的方法，尽可能减少使用会场录音的次数，在一定程度上降低了IP-PBX的资源消耗，相应地减少了对录音系统的资源浪费。
本实施例所提供的通话录音方法，通过录音服务器对从Switch获取的信令进行解析，并根据从PBX接收的录音指令中的号码和对信令解析的结果将录音方式确定为镜像录音或会场录音，实现了录音服务器根据已确定的录音方式对通话终端的媒体流进行录音，本实施例具体根据对信令类型的判断，以及根据媒体流的具体情况选择适用于当前通话场景的录音方式，保证了在录音方式的选择过程中，尽可能的采用镜像录音，即尽可能的减少会场录音的使用次数，解决了现有技术中录音方式，在录音过程中需要利用PBX的资源做会场的问题；在一定程度上降低了PBX的资源消耗，相应地降低了录音系统中的资源消耗。
进一步地，在本实施例的另一种可能实现方式中，S130可以包括：对信令进行解析获取该信令中的号码，以及该号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；将录音指令中的号码与录音服务器中存储的解析结果进行匹配，在解析结果中未匹配到录音指令中的号码时，将录音方式确定为会场录音。
图4为本发明实施例中所提供的又一种通话录音场景的示意图，在本实施例的通话场景中，对信令进行解析，在该解析结果中不能匹配到录音指令 中的号码时，录音服务器则判断出从Switch获取的信令为加密信令，例如可以为加密的SIP信令，即，录音服务器在接收到IP-PBX发送的录音指令后，无法根据该录音指令中的号码从录音服务器存储的解析结果中匹配到该号码对应的IP地址和媒体端口，因此，录音服务器只能通过会场录音获取通话终端的媒体流。
在具体实现时，图3和图4所示通话录音场景中，均采用会场录音对通话终端的媒体流进行录音，在图1所示实施例的基础上，S140可以包括：向IP-PBX发送会场录音指令，以使该IP-PBX创建会场并将通话终端和该录音服务器加入该会场；进而对该会场中的通话终端的媒体流进行录音。需要说明的是，本实施例可以是局外局内的通话，也可以是电话网络的内部通话，并且不限制从Switch获取的媒体流是否被加密；通常地，通话终端可以包括主叫通话终端和被叫通话终端，在IP-PBX创建通话会场后，还可以分别对接收自该主叫通话终端和被叫通话终端的加密媒体流信息进行解密，并在混音后发给录音服务器，从而该录音服务器从该会场中获取解密媒体流信息，如图3和图4所示，建立会场后的录音服务器不需要通过Switch的镜像端口获取通过该IP地址和媒体端口传输的媒体流，而是在该会场中直接从IP-PBX的媒体端口获取媒体流。
实施例二
图5为本发明实施例二所提供的一种通话录音方法的流程图。本实施例提供的方法适用于对电话网络中的通话终端进行录音的情况，该方法可以由PBX执行，该PBX通常以硬件和/或软件的方法来实现，如图5所示，本实施例的方法可以包括：
S210，生成录音指令，该录音指令包括通话终端的号码；
S220，向录音服务器发送录音指令，以使录音服务器根据该号码和对从镜像交换机获取的信令进行解析的结果确定录音方式，并根据确定的录音方式对通话终端的媒体流进行录音，该确定的录音方式具体为镜像录音或会场录音。
在本实施例中，同样以目前通常使用的IP-PBX为例，对本发明实施例提供的通话录音方法予以说明，IP-PBX分别与Switch和录音服务器通过物理连接，录音服务器与Switch的镜像端口连接，具体地，IP-PBX与录音服务器的 指令和消息交互是通过连接端口收发的，录音服务器获取信令和媒体流则是通过Switch镜像端口传输的。录音服务器可以从Switch中实时获取信令并对该信令进行解析，需要说明的是，在本实施例提供的电话网络系统的通话过程中，录音服务器从Switch的镜像端口实时获取的信令可能为加密信令或未加密信令。在IP-PBX向该录音服务器发送包括通话终端号码的录音指令后，可以使得录音服务器根据对该信令的解析结果和该录音指令中的号码进行匹配，并根据匹配的结果确定录音方式，进而采用确定的录音方式，具体可以为镜像录音或会场录音，实现对网络的监听、即对通话终端的录音。PBX发送的该录音指令，用于指示该录音服务器录制该通话终端的媒体流。需要说明的是，PBX可以将通话双方的号码都通过该录音指令发送给录音服务器，指示录音服务器录制通话双方之间的媒体流；也可以仅将通话双方中的一方的号码发送给录音服务器，指示录音服务器录制该号码对应的通话终端接收和发送的媒体流。
需要说明的是，本实施例中IP-PBX可以通过对通话终端的选择实现录音功能的启动，从而发送的录音指令，通常可以对通话终端上的特定功能按键进行选择启动录音功能，也可以由电话网络系统根据对通话终端的录音权限进行判定，对具有录音权限的用户在进行通话时自动启动录音功能。
在本实施例中，录音服务器对获取自Switch的信令进行解析可以得到解析结果，如上所述，该信令可以为加密信令或未加密信令；具体地，若该信令未加密，则录音服务器对该信令进行解析可以获取该信令中的号码，以及该号码对应的IP地址和媒体端口，该号码为信令中的主叫号码和/或被叫号码；若该信令为加密信令，则录音服务器不能对该信令进行解析，即不能获取到信令中的号码，以及该号码对应的IP地址和媒体端口；如上所述对不同类型的信令解析后获取的结果不同，进一步地，对不同类型的信令进行解析后获取的结果通常用于与录音指令中的号码进行匹配，录音服务器根据匹配的结果确定执行录音的方式，该录音方式具体为镜像录音或会场录音。
本实施例在具体实现中，录音服务器确定录音方式后还可以向IP-PBX发送通知消息，用于向IP-PBX通知已确定的录音方式，IP-PBX接收到通知消息后还可以向录音服务器返回相应的确认消息，在实际使用中，IP-PBX与录音服务器的指令和消息交互是通过直连端口收发的，录音服务器获取信令和 媒体流的则是通过Switch镜像端口传输的。
可选地，当录音服务器获取自Switch的信令未加密时，与上述实施例类似地，录音服务器还可以进一步根据通过该号码对应的IP地址和媒体端口传输的媒体流的具体情况确定录音方式，具体实现方式与上述图2和图3所示实施例相同，当录音服务器获取自Switch的信令为加密信令时，具体实现方式与上述图4所示实施例相同，故在此不再赘述。需要说明的是，图2所示实施例录音服务器将录音方式确定为镜像录音，图3和图4所示实施例录音服务器将录音方式确定为会场录音，本发明实施例提供的方法，录音服务器根据从IP-PBX接收到的录音指令和对信令的解析结果的匹配，以及根据通过该IP地址和媒体端口传输的媒体流的具体情况，在录音服务器判断出条件适合的场景中保证尽可能的采用镜像录音，当镜像录音不能适用于当前通话场景时选择会场录音，因此，本实施例的方法，尽可能减少使用会场录音的次数，在一定程度上降低了IP-PBX的资源消耗，相应地减少了对录音系统的资源浪费。
本实施例所提供的通话录音方法，通过PBX向录音服务器发送包括通话终端号码的录音指令，使得录音服务器根据该号码和对从Switch获取的信令的解析结果将录音方式确定为镜像录音或会场录音，实现了录音服务器根据已确定的录音方式对通话终端的媒体流进行录音，本实施例具体根据对信令类型的判断，以及根据媒体流的具体情况选择适用于当前通话场景的录音方式，保证了在录音方式的选择过程中，尽可能的采用镜像录音，即尽可能的减少会场录音的使用次数，解决了现有技术中录音方式，在录音过程中需要利用PBX的资源做会场的问题；在一定程度上降低了PBX的资源消耗，相应地降低了录音系统中的资源消耗。
进一步地，在上述图3和图4所示实施例中，录音服务器均将录音方式确定为会场录音，通话终端通常包括主叫通话终端和被叫通话终端，相应地，本实施例的方法在S220之后还可以包括：S230，接收录音服务器发送的会场录音指令；S240，根据该会场录音指令创建会场，并将主叫通话终端、被叫通话终端和录音服务器加入该会场；S250，对接收自该主叫通话终端和被叫通话终端的媒体流进行混音后发送给该录音服务器。
需要说明的是，本实施例可以是局外局内的通话，也可以是电话网络的 内部通话，并且不限制从Switch获取的媒体流是否被加密；在具体实现中，当会场中的媒体流为加密媒体流时，S250可以替换为：IP-PBX在确定接收自该主叫通话终端和被叫通话终端的媒体流已加密时，对接收自该主叫通话终端的媒体流和接收自该被叫通话终端的媒体流分别进行解密，并对解密后的媒体流进行混音后发送给所述录音服务器，使得录音服务器从该会场中获取解密媒体流信息。如图3和图4所示，建立会场后的录音服务器不需要通过Switch的镜像端口获取媒体流，而是在该会场中直接从IP-PBX的媒体端口获取媒体流。
实施例三
图6为本发明实施例三所提供的一种通话录音方法的信令流程图，如图6所示，本实施例提供的通话录音方法包括：
S301，录音服务器从Switch获取信令。
S302，PBX生成录音指令，并向录音服务器发送该录音指令，该录音指令中包括通话终端的号码。
在本实施例中，同样以目前通常常用的IP-PBX为例，对本发明实施例提供的通话录音方法进行说明，IP-PBX发送的该录音指令，用于指示该录音服务器录制该通话终端的媒体流，该通话终端的号码为通话终端的主叫号码和/或被叫号码。
需要说明的是，本实施例中S301和S302没有明确的先后顺序，本实施例以S301在S302之前执行为例予以示出。
S303，录音服务器对该信令进行解析获取该信令中的号码，以及该号码对应的IP地址和媒体端口，并将解析结果存储在录音服务器中。
S304，录音服务器将录音指令中的号码与录音服务器中存储的解析结果进行匹配，若在该解析结果中匹配到录音指令中的号码，则执行S305；若在该解析结果中未匹配到录音指令中的号码，则执行S308。
本实施例的S303中：具体将录音指令中号码与对信令进行解析的结果进行匹配，根据匹配的结果确定录音方式，该确定的录音方式具体为镜像录音或会场录音；若在该信令的解析结果中可以匹配到录音指令中的号码，则说明该信令未加密；若在该信令的解析结果中不能匹配到录音指令中的号码，说明该信令为加密信令。
在具体实现中，在录音服务器判断出信令未加密时，还需要根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式。相应地，本实施例的方法还包括：
S305，录音服务器在匹配结果中获取录音指令中的号码对应的IP地址和媒体端口。
S306，录音服务器从获取自Switch的媒体流中识别出通过该IP地址和媒体端口传输的媒体流，若判断出该媒体流未加密，则执行S307；若判断出该媒体流已加密，或者若从获取自Switch的媒体流中未识别出通过该IP地址和媒体端口传输的媒体流，则执行S308。
需要说明的是，本实施例中对获取自Switch的媒体流中识别出通过该IP地址和媒体端口传输的媒体流是否加密的判断，还可以通过对信令的解析获取该信令中的指示消息，当该指示信息指示通过该IP地址和媒体端口的媒体流未加密时，执行S307；当该指示信息指示通过该IP地址和媒体端口的媒体流已加密时，执行S308。另外，录音服务器还可以根据从Switch中获取到噪声信号判断出该媒体流已加密。
S307，录音服务器将录音方式确定为镜像录音；
在本实施例中，录音服务器确定录音方式为镜像录音后，对通话终端的媒体流进行录音的方式，具体为对获取自Switch的媒体流中通过该IP地址和媒体端口传输的媒体流进行录音，如图2所示，也为本实施例提供的通话录音场景示意图。
S308，录音服务器将录音方式确定为会场录音。
在本实施例中，当录音服务器判断出信令为加密信令，或者判断出该信令未加密，但是媒体流加密，或者从获取自Switch的媒体流中未识别出通过该IP地址和媒体端口传输的媒体流时，录音服务器将录音方式确定为会场录音；如图3和图4所示，也为本实施例提供的通话录音场景示意图。
进一步地，本实施例在S308之后还包括：
S309，录音服务器向PBX发送会场录音指令；
S310，PBX根据该会场录音指令创建会场；
S311，通话终端和录音服务器加入该会场；本实施例中的通话终端通常包括主叫通话终端和被叫通话终端。
S312，PBX对接收自通话终端的媒体流进行混音后发送给录音服务器。
在本实施例中，在PBX确定接收自该主叫通话终端和被叫通话终端的媒体流已加密时，还可以对接收自主叫通话终端的媒体流和接收自该被叫通话终端的媒体流分别进行解密，并对解密后的媒体流进行混音后发送给录音服务器。
可选地，本实施例提供的方法还包括：S313，PBX接收该通话终端发送的录音启动指令；相应地，S302可以替换为：PBX根据该录音启动指令向该录音服务器发送录音指令。
进一步地，本实施例提供的方法，在S309之后还可以包括：S314，PBX根据该主动录音指令向该录音服务器返回确认消息；
需要说明的是，本实施例中S314和S310没有明确的先后顺序，本实施例以S314在S310之前执行为例予以示出。
本实施例所提供的通话录音方法，通过录音服务器对从Switch获取的信令进行解析，并根据从PBX接收的录音指令中的号码和对信令解析的结果将录音方式确定为镜像录音或会场录音，实现了录音服务器根据已确定的录音方式对通话终端的媒体流进行录音，本实施例具体根据对信令类型的判断，以及根据媒体流的具体情况选择适用于当前通话场景的录音方式，保证了在录音方式的选择过程中，尽可能的采用镜像录音，即尽可能的减少会场录音的使用次数，解决了现有技术中录音方式，在录音过程中需要利用PBX的资源做会场的问题；在一定程度上降低了PBX的资源消耗，相应地降低了录音系统中的资源消耗。
实施例四
图7为本发明实施例四所提供的一种录音服务器的结构示意图。如图7所示，本实施例提供的录音服务器，具体包括：获取模块11、接收模块12、解析模块13和录音模块14。
其中，获取模块11，用于从镜像交换机获取信令。
接收模块12，用于接收PBX发送的录音指令，该录音指令中包括通话终端的号码。
解析模块13，用于对获取模块11获取的信令进行解析，并根据接收模块12接收的录音指令中的号码和对该信令进行解析的结果确定录音方式，该 确定的录音方式具体为镜像录音或会场录音。
录音模块14，用于根据解析模块13确定的录音方式对通话终端的媒体流进行录音。
图8为本发明实施例所提供的另一种录音服务器的结构示意图。如图8所示，本实施例提供的录音服务器在上述图7的基础上，解析模块13，包括：第一解析单元15，用于对获取模块11获取的信令进行解析获取该信令中的号码，以及该号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；第一匹配单元16，用于将接收模块12接收的录音指令中的号码与录音服务器中存储的解析结果进行匹配，在该解析结果中匹配到该录音指令中的号码时，根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
在本实施例中，可选地，第一匹配单元16用于根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在匹配结果中获取录音指令中的号码对应的IP地址和媒体端口；从获取自镜像交换机的媒体流中识别出通过该IP地址和媒体端口传输的媒体流；对识别出的媒体流进行分析以判断该媒体流是否加密，并在判断出该媒体流未加密时确定该录音方式为镜像录音；相应地，录音模块14，具体用于对获取自该镜像交换机的媒体流中通过该IP地址和媒体端口传输的媒体流进行录音。
类似地，第一匹配单元16用于根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体还包括：在匹配结果中获取录音指令中的号码对应的IP地址和媒体端口；如果从获取自镜像交换机的媒体流中未识别出通过该IP地址和媒体端口传输的媒体流，或者，从获取自该镜像交换机的媒体流中识别出通过该IP地址和媒体端口传输的媒体流，且判断出该识别出的媒体流已加密，确定该录音方式为会场录音。
进一步地，本发明实施例提供的第一解析单元15，还用于对获取模块11获取的信令进行解析获取该信令中的指示信息；相应地，解析模块13还可以包括：确定单元17，用于当第一解析单元15获取的指示信息指示通过该IP地址和媒体端口的媒体流未加密时，确定录音方式为镜像录音；或者，当该第一解析单元15获取的指示信息指示通过该IP地址和媒体端口的媒体流已加密时，确定录音方式为会场录音。
本发明实施例提供的录音服务器用于执行图1所示步骤以及图1所示实施例的各种可能实现方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
在本实施例的另一种实现方式中，解析模块13包括：第二解析单元，用于对获取模块11获取的信令进行解析获取该信令中的号码，以及该号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；第二匹配单元，用于将接收模块12接收的录音指令中的号码与录音服务器中存储的解析结果进行匹配，在该解析结果中未匹配到该录音指令中的号码时，将录音方式确定为会场录音。
更进一步地，本实施例在具体实现中，当录音方式确定为会场录音时，录音模块14可以包括：发送单元，用于向PBX发送会场录音指令，以使该PBX创建会场并将通话终端和该录音服务器加入该会场；录音单元，用于对该会场中的通话终端的媒体流进行录音。
实施例五
图9为本发明实施例五所提供的一种PBX的结构示意图。如图9所示，本实施例提供的PBX，具体包括：录音指示模块21和发送模块22。
其中，录音指示模块21，用于生成录音指令，该录音指令包括通话终端的号码。
发送模块22，用于向录音服务器发送录音指令，以使录音服务器根据该号码和对从镜像交换机获取的信令进行解析的结果确定录音方式，并根据该确定的录音方式对通话终端的媒体流进行录音，该确定的录音方式具体为镜像录音或会场录音。
在本实施例中，同样以目前通常使用的IP-PBX为例，对本发明实施例提供的PBX予以说明。图10为本发明实施例所提供的另一种PBX的结构示意图。如图10所示，本实施例提供的PBX在上述图9的基础上，具体地，该通话终端通常包括主叫通话终端和被叫通话终端；本实施例提供的PBX还包括：接收模块23，用于在发送模块22向录音服务器发送录音指令之后，接收录音服务器发送的会场录音指令；创建模块24，用于根据接收模块23接收的会场录音指令创建会场，并将该主叫通话终端、该被叫通话终端和该录音服务器加入该会场；媒体处理模块25，用于对接收自该主叫通话终端和被 叫通话终端的媒体流进行混音；相应地，该发送模块22，还用于将该混音后的媒体流发送给该录音服务器。
需要说明的是，在本实施例中，当会场中的媒体流为加密媒体流时，媒体处理模块25，具体在确定接收自该主叫通话终端和该被叫通话终端的媒体流已加密时，对接收自该主叫通话终端的媒体流和接收自该被叫通话终端的媒体流分别进行解密，并对该解密后的媒体流进行混音。
本发明实施例提供的PBX用于执行图5所示步骤以及图5所示实施例的各种可能实现方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
实施例六
图11为本发明实施例六所提供的一种录音服务器的结构示意图。如图11所示，本实施例提供的录音服务器，具体包括：处理器31、接收器32和录音器33。
其中，处理器31，用于从镜像交换机获取信令。
接收器32，用于接收PBX发送的录音指令，该录音指令中包括通话终端的号码。
处理器31，还用于对该信令进行解析，并根据接收器32接收的录音指令中的号码和对该信令进行解析的结果确定录音方式，该确定的录音方式具体为镜像录音或会场录音。
录音器33，用于根据处理器31确定的录音方式对通话终端的媒体流进行录音。
本实施例在具体实现中，处理器31还用于对该信令进行解析，并根据接收器32接收的录音指令中的号码和对该信令进行解析的结果确定录音方式，具体包括：处理器31，用于对信令进行解析获取该信令中的号码，以及该号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将接收器32接收的录音指令中的号码与录音服务器中存储的解析结果进行匹配，在该解析结果中匹配到该录音指令中的号码时，根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
在本实施例中，可选地，处理器31用于根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在匹配结果中获取录音 指令中的号码对应的IP地址和媒体端口；从获取自镜像交换机的媒体流中识别出通过该IP地址和媒体端口传输的媒体流；对识别出的媒体流进行分析以判断该媒体流是否加密，并在判断出该媒体流未加密时确定该录音方式为镜像录音；相应地，录音器33，具体用于对获取自该镜像交换机的媒体流中通过该IP地址和媒体端口传输的媒体流进行录音。
类似地，处理器31用于根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体还包括：在匹配结果中获取录音指令中的号码对应的IP地址和媒体端口；如果从获取自镜像交换机的媒体流中未识别出通过该IP地址和媒体端口传输的媒体流，或者，从获取自该镜像交换机的媒体流中识别出通过该IP地址和媒体端口传输的媒体流，且判断出该识别出的媒体流已加密，确定该录音方式为会场录音。
进一步地，本发明实施例的处理器31，还用于对信令进行解析获取该信令中的指示信息；相应地，该处理器31，还用于当该指示信息指示通过该IP地址和媒体端口的媒体流未加密时，确定录音方式为镜像录音；或者，当该指示信息指示通过该IP地址和媒体端口的媒体流已加密时，确定录音方式为会场录音。
在本实施例的另一种实现方式中，处理器31还用于对该信令进行解析，并根据接收器32接收的录音指令中的号码和对该信令进行解析的结果确定录音方式，具体包括：处理器31，用于对信令进行解析获取该信令中的号码，以及该号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将接收器32接收的录音指令中的号码与录音服务器中存储的解析结果进行匹配，在该解析结果中未匹配到该录音指令中的号码时，将录音方式确定为会场录音。
更进一步地，本实施例在具体实现中，当录音方式确定为会场录音时，录音器33，还用于向PBX发送会场录音指令，以使该PBX创建会场并将通话终端和该录音服务器加入该会场；并对该会场中的通话终端的媒体流进行录音。
本发明实施例提供的录音服务器用于执行图1所示步骤以及图1所示实施例的各种可能实现方法，具备相应的实体装置，其实现原理和技术效果类似，此处不再赘述。
实施例七
图12为本发明实施例七所提供的一种PBX的结构示意图。如图12所示，本实施例提供的PBX，具体包括：处理器41、发送器42和接收器43。
其中，处理器41，用于生成录音指令，该录音指令包括通话终端的号码。
发送器42，用于向录音服务器发送录音指令，以使录音服务器根据该号码和对从镜像交换机获取的信令进行解析的结果确定录音方式，并根据该确定的录音方式对通话终端的媒体流进行录音，该确定的录音方式具体为镜像录音或会场录音。
在本实施例中，同样以目前通常使用的IP-PBX为例，对本发明实施例提供的PBX予以说明。具体地，该通话终端通常包括主叫通话终端和被叫通话终端；相应地，接收器43，用于在发送器42向录音服务器发送录音指令之后，接收录音服务器发送的会场录音指令；处理器41，还用于根据接接收器43接收的会场录音指令创建会场，并将该主叫通话终端、该被叫通话终端和该录音服务器加入该会场；进一步地，处理器41，还用于对接收自该主叫通话终端和被叫通话终端的媒体流进行混音；相应地，该发送器42，还用于将混音后的媒体流发送给该录音服务器。
需要说明的是，本实施例在具体实现中，当会场中的媒体流为加密媒体流时，处理器41还用于对接收自该主叫通话终端和该被叫通话终端的媒体流进行混音，具体包括：处理器41，用于在确定接收自该主叫通话终端和该被叫通话终端的媒体流已加密时，对接收自该主叫通话终端的媒体流和接收自该被叫通话终端的媒体流分别进行解密，并对该解密后的媒体流进行混音。
本发明实施例提供的PBX用于执行本图5所示步骤以及图5所示实施例的各种可能实现方法，具备相应的实体装置，其实现原理和技术效果类似，此处不再赘述。
图13为本发明实施例所提供的一种录音系统的结构示意图。如图13所示，本实施例所提供的录音系统，具体包括：录音服务器51和PBX52。
其中，录音服务器51，用于从镜像交换机获取信令。
PBX52，用于生成录音指令，并向录音服务器发送该录音指令，该录音指令包括通话终端的号码。
该录音服务器51，还用于接收用户级交换机PBX发送的录音指令，对信 令进行解析，并根据该录音指令中的号码和对该信令进行解析的结果确定录音方式，该确定的录音方式具体为镜像录音或会场录音；进而根据确定的录音方式对通话终端的媒体流进行录音。
本实施例在具体实现中，录音服务器51还用于对信令进行解析，并根据该录音指令中的号码和对该信令进行解析的结果确定录音方式，具体包括：录音服务器51，用于对信令进行解析获取该信令中的号码，以及该号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将录音指令中的号码与录音服务器51中存储的解析结果进行匹配，在该解析结果中匹配到该录音指令中的号码时，根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
在本实施例中，可选地，录音服务器51用于根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在匹配结果中获取录音指令中的号码对应的IP地址和媒体端口；从获取自镜像交换机的媒体流中识别出通过该IP地址和媒体端口传输的媒体流；对识别出的媒体流进行分析以判断该媒体流是否加密，并在判断出该媒体流未加密时确定该录音方式为镜像录音；相应地，录音服务器51还用于根据该确定的录音方式对通话终端的媒体流进行录音，具体包括：录音服务器51，用于对获取自该镜像交换机的媒体流中通过该IP地址和媒体端口传输的媒体流进行录音。
类似地，录音服务器51用于根据通过该号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体还包括：在匹配结果中获取录音指令中的号码对应的IP地址和媒体端口；如果从获取自镜像交换机的媒体流中未识别出通过该IP地址和媒体端口传输的媒体流，或者，从获取自该镜像交换机的媒体流中识别出通过该IP地址和媒体端口传输的媒体流，且判断出该识别出的媒体流已加密，确定该录音方式为会场录音。
进一步地，本发明实施例提供的录音服务器51，还用于对信令进行解析获取该信令中的指示信息；当该指示信息指示通过该IP地址和媒体端口的媒体流未加密时，确定录音方式为镜像录音；或者，当该指示信息指示通过该IP地址和媒体端口的媒体流已加密时，确定录音方式为会场录音。
本发明实施例提供的录音系统为与本发明实施例一所提供的录音服务器和实施例二所提供的PBX对应的录音系统，其实现原理和技术效果类似，此 处不再赘述。
在本实施例的另一种实现方式中，录音服务器51还用于对信令进行解析，并根据该录音指令中的号码和对该信令进行解析的结果确定录音方式，具体包括：录音服务器51，用于对信令进行解析获取该信令中的号码，以及该号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将录音指令中的号码与录音服务器51中存储的解析结果进行匹配，在该解析结果中未匹配到该录音指令中的号码时，将录音方式确定为会场录音。
更进一步地，本实施例在具体实现中，当录音方式确定为会场录音时，录音服务器51还用于根据该确定的录音方式对通话终端的媒体流进行录音，具体包括：录音服务器51，用于向PBX52发送会场录音指令；并在PBX52创建会场后对该会场中的该通话终端的媒体流进行录音；通常地，通话终端包括主叫通话终端和被叫通话终端；相应地，PBX52，还用于接收录音服务器51发送的会场录音指令；根据该会场录音指令创建会场，并将该主叫通话终端、该被叫通话终端和录音服务器51加入该会场；进而对接收自该主叫通话终端和该被叫通话终端的媒体流进行混音后发送给该录音服务器。
需要说明的是，在本实施例中，当会场中的媒体流为加密媒体流时，PBX52还用于对接收自该主叫通话终端和该被叫通话终端的媒体流进行混音后发送给该录音服务器，具体包括：在确定接收自该主叫通话终端和该被叫通话终端的媒体流已加密时，对接收自该主叫通话终端的媒体流和接收自该被叫通话终端的媒体流分别进行解密，并对该解密后的媒体流进行混音后发送给该录音服务器。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (28)

  1. 一种通话录音方法，其特征在于，包括：
    从镜像交换机获取信令；
    接收用户级交换机PBX发送的录音指令，所述录音指令中包括通话终端的号码；
    对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音；
    根据所述确定的录音方式对所述通话终端的媒体流进行录音。
  2. 根据权利要求1所述的方法，其特征在于，所述对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，包括：
    对所述信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；
    将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中匹配到所述录音指令中的号码时，根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
  3. 根据权利要求2所述的方法，其特征在于，所述根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，包括：
    在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；
    从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流；
    对识别出的媒体流进行分析以判断所述媒体流是否加密，并在判断出所述媒体流未加密时确定所述录音方式为镜像录音；
    所述根据所述确定的录音方式对所述通话终端的媒体流进行录音，包括：
    对获取自所述镜像交换机的媒体流中通过所述IP地址和媒体端口传输的媒体流进行录音。
  4. 根据权利要求2所述的方法，其特征在于，所述根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，包括：
    在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端 口；
    如果从获取自所述镜像交换机的媒体流中未识别出通过所述IP地址和媒体端口传输的媒体流，或者，从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流，且判断出所述识别出的媒体流已加密，确定所述录音方式为会场录音。
  5. 根据权利要求2所述的方法，其特征在于，还包括：
    对所述信令进行解析获取所述信令中的指示信息；
    当所述指示信息指示通过所述IP地址和媒体端口的媒体流未加密时，确定所述录音方式为镜像录音；或者，
    当所述指示信息指示通过所述IP地址和媒体端口的媒体流已加密时，确定所述录音方式为会场录音。
  6. 根据权利要求1所述的方法，其特征在于，所述对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，包括：
    对所述信令进行解析获取所述信令中的号码，以及所述号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；
    将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中未匹配到所述录音指令中的号码时，将所述录音方式确定为会场录音。
  7. 根据权利要求4～6中任一项所述的方法，其特征在于，所述根据所述确定的录音方式对所述通话终端的媒体流进行录音，包括：
    向所述PBX发送会场录音指令，以使所述PBX创建会场并将所述通话终端和所述录音服务器加入所述会场；
    对所述会场中的所述通话终端的媒体流进行录音。
  8. 一种通话录音方法，其特征在于，包括：
    生成录音指令，所述录音指令包括通话终端的号码；
    向录音服务器发送录音指令，以使所述录音服务器根据所述号码和对从镜像交换机获取的信令进行解析的结果确定录音方式，并根据所述确定的录音方式对所述通话终端的媒体流进行录音，所述确定的录音方式具体为镜像录音或会场录音。
  9. 根据权利要求8所述的方法，其特征在于，所述通话终端包括主叫通话终端和被叫通话终端，所述向录音服务器发送录音指令之后，还包括：
    接收所述录音服务器发送的会场录音指令；
    根据所述会场录音指令创建会场，并将所述主叫通话终端、所述被叫通话终端和所述录音服务器加入所述会场；
    对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器。
  10. 根据权利要求8或9所述的方法，其特征在于，所述对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器，包括：
    在确定接收自所述主叫通话终端和所述被叫通话终端的媒体流已加密时，对接收自所述主叫通话终端的媒体流和接收自被叫通话终端的媒体流分别进行解密，并对所述解密后的媒体流进行混音后发送给所述录音服务器。
  11. 一种录音服务器，其特征在于，包括：
    获取模块，用于从镜像交换机获取信令；
    接收模块，用于接收用户级交换机PBX发送的录音指令，所述录音指令中包括通话终端的号码；
    解析模块，用于对所述获取模块获取的信令进行解析，并根据所述接收模块接收的录音指令中的号码和对所述信令进行解析的结果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音；
    录音模块，用于根据所述解析模块确定的录音方式对所述通话终端的媒体流进行录音。
  12. 根据权利要求11所述的录音服务器，其特征在于，所述解析模块，包括：
    第一解析单元，用于对所述获取模块获取的信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；
    第一匹配单元，用于将所述接收模块接收的录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中匹配到所述录音指令中的号码时，根据通过所述号码对应的IP地址和媒体端口传输的媒体 流确定录音方式。
  13. 根据权利要求12所述的录音服务器，其特征在于，所述第一匹配单元用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流；对识别出的媒体流进行分析以判断所述媒体流是否加密，并在判断出所述媒体流未加密时确定所述录音方式为镜像录音；
    则所述录音模块，具体用于对获取自所述镜像交换机的媒体流中通过所述IP地址和媒体端口传输的媒体流进行录音。
  14. 根据权利要求12所述的录音服务器，其特征在于，所述第一匹配单元用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；如果从获取自所述镜像交换机的媒体流中未识别出通过所述IP地址和媒体端口传输的媒体流，或者，从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流，且判断出所述识别出的媒体流已加密，确定所述录音方式为会场录音。
  15. 根据权利要求12所述的录音服务器，其特征在于，所述第一解析单元，还用于对所述获取模块获取的信令进行解析获取所述信令中的指示信息；
    所述解析模块还包括：确定单元，用于当所述第一解析单元获取的指示信息指示通过所述IP地址和媒体端口的媒体流未加密时，确定所述录音方式为镜像录音；或者，当所述第一解析单元获取的指示信息指示通过所述IP地址和媒体端口的媒体流已加密时，确定所述录音方式为会场录音。
  16. 根据权利要求11所述的录音服务器，其特征在于，所述解析模块，包括：
    第二解析单元，用于对所述获取模块获取的信令进行解析获取所述信令中的号码，以及所述号码对应的IP地址和媒体端口，并将解析的结果存储在录音服务器中；
    第二匹配单元，用于将所述接收模块接收的录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中未匹配到所述录音指令中的号码时，将所述录音方式确定为会场录音。
  17. 根据权利要求14～16中任一项所述的录音服务器，其特征在于，所述录音模块，包括：
    发送单元，用于向所述PBX发送会场录音指令，以使所述PBX创建会场并将所述通话终端和所述录音服务器加入所述会场；
    录音单元，用于对所述会场中的所述通话终端的媒体流进行录音。
  18. 一种用户级交换机，其特征在于，包括：
    录音指示模块，用于生成录音指令，所述录音指令包括通话终端的号码；
    发送模块，用于向录音服务器发送录音指令，以使所述录音服务器根据所述号码和对从镜像交换机获取的信令进行解析的结果确定录音方式，并根据所述确定的录音方式对所述通话终端的媒体流进行录音，所述确定的录音方式具体为镜像录音或会场录音。
  19. 根据权利要求18所述的交换机，其特征在于，所述通话终端包括主叫通话终端和被叫通话终端，所述用户级交换机PBX还包括：接收模块，用于在所述发送模块向录音服务器发送录音指令之后，接收所述录音服务器发送的会场录音指令；
    创建模块，用于根据所述接收模块接收的会场录音指令创建会场，并将所述主叫通话终端、所述被叫通话终端和所述录音服务器加入所述会场；
    媒体处理模块，用于对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音；
    所述发送模块，还用于将所述混音后的媒体流发送给所述录音服务器。
  20. 根据权利要求18或19所述的交换机，其特征在于，所述媒体处理模块，具体用于在确定接收自所述主叫通话终端和所述被叫通话终端的媒体流已加密时，对接收自所述主叫通话终端的媒体流和接收自所述被叫通话终端的媒体流分别进行解密，并对所述解密后的媒体流进行混音。
  21. 一种录音系统，其特征在于，包括：录音服务器和用户级交换机PBX；
    其中，录音服务器，用于从镜像交换机获取信令；
    所述PBX，用于生成录音指令，所述录音指令包括通话终端的号码，并向录音服务器发送所述录音指令；
    所述录音服务器，还用于接收用户级交换机PBX发送的录音指令，对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结 果确定录音方式，所述确定的录音方式具体为镜像录音或会场录音；进而根据所述确定的录音方式对所述通话终端的媒体流进行录音。
  22. 根据权利要求21所述的系统，其特征在于，所述录音服务器还用于对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，具体包括：
    所述录音服务器，用于对所述信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中匹配到所述录音指令中的号码时，根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式。
  23. 根据权利要求22所述的系统，其特征在于，所述录音服务器用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流；对识别出的媒体流进行分析以判断所述媒体流是否加密，并在判断出所述媒体流未加密时确定所述录音方式为镜像录音；
    所述录音服务器还用于根据所述确定的录音方式对所述通话终端的媒体流进行录音，具体包括：所述录音服务器，用于对获取自所述镜像交换机的媒体流中通过所述IP地址和媒体端口传输的媒体流进行录音。
  24. 根据权利要求22所述的系统，其特征在于，所述录音服务器用于根据通过所述号码对应的IP地址和媒体端口传输的媒体流确定录音方式，具体包括：在所述匹配结果中获取所述录音指令中的号码对应的IP地址和媒体端口；如果从获取自所述镜像交换机的媒体流中未识别出通过所述IP地址和媒体端口传输的媒体流，或者，从获取自所述镜像交换机的媒体流中识别出通过所述IP地址和媒体端口传输的媒体流，且判断出所述识别出的媒体流已加密，确定所述录音方式为会场录音。
  25. 根据权利要求22所述的系统，其特征在于，所述录音服务器，还用于对所述信令进行解析获取所述信令中的指示信息；当所述指示信息指示通过所述IP地址和媒体端口的媒体流未加密时，确定所述录音方式为镜像录音；或者，当所述指示信息指示通过所述IP地址和媒体端口的媒体流已加密时， 确定所述录音方式为会场录音。
  26. 根据权利要求21所述的系统，其特征在于，所述录音服务器还用于对所述信令进行解析，并根据所述录音指令中的号码和对所述信令进行解析的结果确定录音方式，具体包括：
    所述录音服务器，用于对所述信令进行解析获取所述信令中的号码，以及所述号码对应的网协IP地址和媒体端口，并将解析的结果存储在录音服务器中；进而将所述录音指令中的号码与所述录音服务器中存储的所述解析结果进行匹配，在所述解析结果中未匹配到所述录音指令中的号码时，将所述录音方式确定为会场录音。
  27. 根据权利要求24～26中任一项所述的系统，其特征在于，所述录音服务器还用于根据所述确定的录音方式对所述通话终端的媒体流进行录音，具体包括：所述录音服务器，用于向所述PBX发送会场录音指令；在所述PBX创建会场后对所述会场中的所述通话终端的媒体流进行录音；
    所述通话终端包括主叫通话终端和被叫通话终端；所述PBX，还用于接收所述录音服务器发送的会场录音指令；根据所述会场录音指令创建所述会场，并将所述主叫通话终端、所述被叫通话终端和所述录音服务器加入所述会场；进而对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器。
  28. 根据权利要求27所述的系统，其特征在于，所述PBX还用于对接收自所述主叫通话终端和所述被叫通话终端的媒体流进行混音后发送给所述录音服务器，具体包括：
    所述PBX，用于在确定接收自所述主叫通话终端和所述被叫通话终端的媒体流已加密时，对接收自所述主叫通话终端的媒体流和接收自所述被叫通话终端的媒体流分别进行解密，并对所述解密后的媒体流进行混音后发送给所述录音服务器。
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