WO2011000291A1 - Procédé, dispositif et système permettant d'associer des paquets de protocole de transport en temps réel (rtp) dans une session de protocole d'ouverture de session (sip) - Google Patents

Procédé, dispositif et système permettant d'associer des paquets de protocole de transport en temps réel (rtp) dans une session de protocole d'ouverture de session (sip) Download PDF

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Publication number
WO2011000291A1
WO2011000291A1 PCT/CN2010/074564 CN2010074564W WO2011000291A1 WO 2011000291 A1 WO2011000291 A1 WO 2011000291A1 CN 2010074564 W CN2010074564 W CN 2010074564W WO 2011000291 A1 WO2011000291 A1 WO 2011000291A1
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WO
WIPO (PCT)
Prior art keywords
sip
rtp packet
rtp
identifier
session
Prior art date
Application number
PCT/CN2010/074564
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English (en)
Chinese (zh)
Inventor
张恋
黄蓉军
王明武
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2011000291A1 publication Critical patent/WO2011000291A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device, and system for associating all RTP packets in a SIP session. Background technique
  • VOIP Voice over Internet Protocol
  • SIP Session Initiation Protocol
  • RTP Real-time Transport Protocol
  • the VOIP recording function that is, the recording server extracts and saves the packets in the voice stream. Specifically, after receiving one SIP signaling, the SIP is parsed first, and the content of the SDP, that is, the addresses of the RTPs, is extracted and saved; then, after the session is established, the data stream of the RTP packet is received and extracted, according to the save. The content matches the RTP, and the data stream of the RTP packet is stored in the corresponding recording file.
  • Embodiments of the present invention provide a method, apparatus, and system for associating an RTP packet in a SIP, which can be associated with a simplified process and improve system performance and stability.
  • a method for associating RTP packets in a SIP session including:
  • An application server including:
  • a receiving unit configured to receive an RTP packet that includes a SIP identifier
  • a parsing unit configured to parse the SIP identifier from the RTP packet
  • An association unit configured to determine, according to the SIP identifier, a SIP connection to which the RTP packet belongs.
  • a method for associating RTP packets in a SIP session including:
  • a terminal comprising:
  • a filling unit configured to fill the SIP identifier into the RTP package
  • a sending unit configured to send the RTP packet.
  • a communication system comprising:
  • a terminal configured to fill a SIP identifier into an RTP packet, and send the RTP packet;
  • an application server configured to receive an RTP packet that includes the SIP identifier, parse the SIP identifier from the RTP packet, and then Determining, according to the SIP identifier, a SIP connection to which the RTP packet belongs.
  • the method, device and system for associating the RTP packet in the SIP tongue are provided by the embodiment of the present invention.
  • the terminal sends the RTP packet
  • the terminal fills the SIP identifier into the RTP packet, and after receiving the RTP packet, the server can pass the packet.
  • the SIP identifier is quickly associated with the SIP to which the RTP packet belongs, avoiding the prior art to parse the SIP and find the IP address and port; then parsing the RTP, finding the IP address and port; and then performing the matching association.
  • P is competing for the complexity of implementation. Also avoid The matching association failure caused by the unfixed IP address and port improves the system performance and stability.
  • FIG. 1 is a flow block diagram of a method for associating an RTP packet in a SIP session according to Embodiment 1 of the present invention
  • FIG. 2 is a structural block diagram of an application server according to Embodiment 2 of the present invention.
  • FIG. 3 is a flow block diagram of a method for associating an RTP packet in a SIP session according to Embodiment 3 of the present invention
  • FIG. 4 is a structural block diagram of a terminal according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic flowchart of a method for associating an RTP packet in a SIP session according to Embodiment 5 of the present invention
  • FIG. 6 is a schematic structural diagram of a communication system according to Embodiment 6 of the present invention. detailed description
  • a method for associating an RTP packet in a SIP session includes the following steps:
  • S102 Determine, according to the SIP identifier in the RTP packet, the SIP connection to which the RTP packet belongs.
  • the SIP identifier may be a call identifier (Ca ll lD ) of the SIP field or a session identifier (DialogID ) of the SIP field.
  • the method for associating the RTP packet in the SIP session provided by the embodiment of the present invention can quickly match the SIP to which the RTP packet belongs by using the SIP identifier in the packet after the RTP packet is received, thereby avoiding parsing the SIP in the prior art. Find the IP address and port; then parse the RTP, find the IP address and port; then perform the matching association, P strives to reduce the complexity of the implementation. At the same time, the matching association failure caused by the unfixed IP address and port is avoided, which improves the system performance and stability.
  • an application server includes: a receiving unit 201, a parsing unit 202, and an associating unit 203.
  • the receiving unit 201 is configured to receive an RTP packet that includes an identifier of the SIP;
  • the parsing unit 202 is configured to parse the SIP identifier from the RTP packet.
  • the association unit 203 is configured to determine, according to the SIP identifier, a SIP connection to which the RTP packet belongs.
  • the above server further includes:
  • the recording unit 204 is configured to extract the data stream of the RTP packet and store it in the recording file corresponding to the SIP connection to which it belongs. In this way, the association between the RTP packet and the SIP can be utilized to implement the recording function.
  • the application server provided by the embodiment of the present invention can pass the RTP packet after receiving the RTP packet.
  • the SIP identity is quickly associated with the SIP to which the RTP packet belongs. This avoids the prior art to resolve the SIP and find the IP address and port.
  • the RTP is parsed to find the IP address and port. Then the matching association is performed to reduce the association. The complexity of the implementation. At the same time, the matching association failure caused by the unfixed IP address and port is avoided, and the system performance and stability are improved.
  • FIG. 3 A method for associating an RTP packet in a SIP session according to an embodiment of the present invention is as shown in FIG. 3, where the method includes:
  • the filling of the SIP identifier into the RTP packet may include: filling the SIP identifier into the extension header of the RTP; or filling the SIP identifier corresponding mapping table into the RTP. In the extension header.
  • the method for associating the RTP packet in the SIP session provided by the embodiment of the present invention, when the RTP packet is sent, the SIP identifier is filled into the RTP packet.
  • the server can quickly match the SIP to which the RTP packet belongs by using the SIP identifier in the packet, thereby avoiding the prior art to first parse the SIP, find the IP address and port, and then parse the RTP. , find the IP address and port; then perform the matching association, P strives to reduce the complexity of the implementation.
  • the matching association failure caused by the unfixed IP address and port is avoided, and the system performance and stability are improved.
  • the embodiment of the present invention provides a terminal.
  • the terminal includes: a filling unit 401 and a sending unit 402.
  • a filling unit 401 configured to fill the SIP identifier into the RTP packet
  • the sending unit 402 is configured to send the RTP packet.
  • the terminal provided by the embodiment of the present invention fills the SIP identifier into the RTP packet when sending the RTP packet.
  • the server can quickly match the SIP to which the RTP packet belongs by using the SIP identifier in the packet, thereby avoiding the prior art to first parse the SIP, find the IP address and port, and then parse the RTP. , find the IP address and port; then perform matching associations, reducing the complexity of the implementation.
  • the matching association failure caused by the unfixed IP address and port is avoided, and the system performance and stability are improved.
  • the method for associating RTP packets in a SIP session provided by the embodiment of the present invention is described by taking VOIP recording as an example.
  • the RTP stream In a SIP session, after the remote and local calls are established, the RTP stream also establishes two channels. One is local to remote, ⁇ is type A package, and the other is remote to local, assuming type B package. When there are multiple channels, the recording server will capture A1-B, A2-B2, A3-B3, etc. Multi-channel RTP packets.
  • the terminal After the SIP establishes a call, the terminal will identify the SIP identifier, that is, the call identifier of the SIP field. ( Cal l lD ) is populated into the Type A package. Here, the padding field is not limited to the Call l lD. If the session identifier (DialogID) in the service can also identify the session, the DialogID can also be used, and of course, other identifiers are also used. .
  • the RTP protocol defines an extension header, which is generally an extension of the codec. However, this extension information is rarely used in VOIP, so the RTP extension header can be used to populate the SIP identifier Cal l lD.
  • the extension header has 32 bits in total, but it can be divided into two parts, but it can also be used without distinction.
  • the Cal l lD value is too long, and the extended header length is only 32 bits, so you can make a mapping table with Ca 111. D - the corresponding mapping table is filled.
  • the RTP package After the RTP package is packaged, it is sent to the core switch, and the core switch utilizes port mirroring.
  • Port Mirror ing ( Port Mirror ing ) method, mirroring this data to the application server (recording server).
  • the so-called port mirroring method here is a method of mirroring data of one or more ports of a switch to another port or ports.
  • the application server After receiving the RTP packet, the application server can quickly locate the SIP packets in the received A-type packets by parsing the SIP identifier in the RTP packet.
  • the application server extracts the data stream of the RTP packet and stores it in the recording file corresponding to the SIP.
  • A2-B2 and other paths are processed in this way, and the V0IP recording function is realized. The process is shown in Figure 5.
  • the method for associating the RTP packet in the SIP session provided by the embodiment of the present invention, when the terminal sends the RTP packet, the terminal fills the SIP identifier into the RTP packet, and after receiving the RTP packet, the server can quickly pass the SIP identifier in the packet.
  • the SIP to which the RTP packet belongs is matched and matched, so that the SIP is first parsed in the prior art to find the IP address and port; then the RTP is parsed to find the IP address and port;
  • the practice of matching associations, P strives to reduce the complexity of implementation.
  • the matching association failure caused by the unfixed IP address and port is avoided, and the system performance and stability are improved.
  • the matching policy is improved, and the dependence of the recording service on the call control service is reduced in the entire system, and the existing networking and the interaction between the network elements are not changed, so the solution easy and convenient.
  • the communication system provided by the embodiment of the present invention, as shown in FIG. 6, includes: a terminal 601, an application server 602.
  • the terminal 601 is configured to fill the SIP identifier into the RTP packet, and send the RTP packet.
  • the application server 602 is configured to receive the RTP packet that includes the SIP identifier, and parse the SIP identifier from the RTP packet, and then The SIP identity determines the SIP connection to which the RTP packet belongs.
  • the terminal when the terminal sends the RTP packet, the terminal fills the SIP identifier into the RTP packet, and after receiving the RTP packet, the application server can quickly associate with the RTP packet by using the SIP identifier in the packet.
  • SIP performs matching association, avoiding the prior art to parse SIP first, find out the IP address and port; then parse the RTP, find the IP address and port; then perform the matching association, and P strives to reduce the complexity of the implementation.
  • the matching association failure caused by the unfixed IP address and port is avoided, and the system performance and stability are improved.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention porte sur un procédé, sur un dispositif et sur un système permettant d'associer des paquets de protocole de transport en temps réel (RTP) dans une session de protocole d'ouverture de session (SIP). La présente invention se rapporte au domaine des communications et est utilisée pour associer les paquets de protocole RTP dans la session de protocole SIP. Le procédé comprend les étapes suivantes : les paquets de protocole RTP comprenant les identifiants de protocole SIP sont reçus ; et la connexion SIP à laquelle appartiennent les paquets de protocole RTP, est déterminée selon les identifiants de protocole SIP dans les paquets de protocole RTP. La présente invention permet de simplifier le procédé d'association et d’améliorer la performance et la stabilité du système.
PCT/CN2010/074564 2009-06-29 2010-06-28 Procédé, dispositif et système permettant d'associer des paquets de protocole de transport en temps réel (rtp) dans une session de protocole d'ouverture de session (sip) WO2011000291A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910087573.1 2009-06-29
CN200910087573.1A CN101938397A (zh) 2009-06-29 2009-06-29 关联sip会话中rtp包的方法、装置及系统

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WO2011000291A1 true WO2011000291A1 (fr) 2011-01-06

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CN102629961A (zh) * 2012-03-07 2012-08-08 上海大亚科技有限公司 在epon网关终端设备上实现音频信号录制和播放的方法
CN102710620B (zh) * 2012-05-21 2015-05-20 北京中创信测科技股份有限公司 Ims网络中sip呼叫信令流程与rtp/rtcp媒体流关联的方法
CN104980406B (zh) * 2014-04-11 2018-11-20 华为技术有限公司 通话录音方法、录音服务器、用户级交换机及录音系统
CN111246155B (zh) * 2020-01-21 2021-07-30 福建星网智慧科技股份有限公司 一种电视墙服务器的rtp报文转发方法以及装置

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CN1783877A (zh) * 2004-11-30 2006-06-07 Ut斯达康通讯有限公司 实时通讯数据流穿越网络地址转换设备和防火墙的方法
CN1845547A (zh) * 2005-04-06 2006-10-11 阿尔卡特公司 多媒体通信的特定流重定向
CN1866929A (zh) * 2005-05-17 2006-11-22 阿尔卡特公司 提供实时通信连接的方法
CN101052045A (zh) * 2007-05-16 2007-10-10 中兴通讯股份有限公司 同步源标识符分配方法
EP2026528A1 (fr) * 2007-07-23 2009-02-18 Samsung Electronics Co., Ltd. Système de téléphonie intégrée par Internet et son procédé de signalisation

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Publication number Priority date Publication date Assignee Title
CN1783877A (zh) * 2004-11-30 2006-06-07 Ut斯达康通讯有限公司 实时通讯数据流穿越网络地址转换设备和防火墙的方法
CN1845547A (zh) * 2005-04-06 2006-10-11 阿尔卡特公司 多媒体通信的特定流重定向
CN1866929A (zh) * 2005-05-17 2006-11-22 阿尔卡特公司 提供实时通信连接的方法
CN101052045A (zh) * 2007-05-16 2007-10-10 中兴通讯股份有限公司 同步源标识符分配方法
EP2026528A1 (fr) * 2007-07-23 2009-02-18 Samsung Electronics Co., Ltd. Système de téléphonie intégrée par Internet et son procédé de signalisation

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