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This system uses GL's Ethernet probe called "PacketScan™" to monitor packet flows in real-time within a VoIP network. All major VoIP protocols are supported including SIP, H.323, Megaco, and MGCP. PacketScan™ also performs detailed analysis of voice band streams gathering QOS statistics such as MOS (Mean Opinion Score), total packet count, reordered, duplicate and missing packet counts, packet gap, jitter, and delay. A central database stores the real-time and historic data. The system also facilitates various views using a web interface.

The essential elements of the Non-Intrusive Packet and VoIP monitoring system are:

• PacketScan™ Probe to gather IP packet information in a non-intrusive fashion and forward call detail records (CDRs) as well as statistics to a central database
  
  
• A central database which will store the data collected by the probes
  
  
• A WebServer which will provide real-time and historic views of the data through various "browser based" clients.
  
  
• PacketScanWeb™ facilitates result display using a web interface. With this, one can view real-time data, navigate through records, filter the collected VoIP traffic summary, and graphically analyze the call volume, MOS, call completion, failed calls, completed calls, PDD, and so on through a simple web browser.

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PacketScan™ Probe Benefits

• Multiple probes at different locations
  
  
• Monitors different types of data (Protocols, Codec, QOS Statistics)
  
  
• Call Quality Of Service (QOS) for all calls with E-Model based (G.107) Mean Opinion Score (MOS) and R-factor
  
  
• All probes are connected to centralized storage location (Database)
  
  
• Data processing performed by software only probes
  
  
  • Allows quick upgrades and modifications
    
    
  • Utilizes and exploits the power of the latest PC processors (quad-core and beyond)
    
    
  • Most of the processing (CDR, XDR, Wave file recording, etc) is performed at probe to reduce traffic over network, redundant local (probe) storage
  
  
  
• Incrementally scalable architecture – ideal for small to large enterprise level deployments
  
  
• Fail-safe network taps with bifurcation hardware used to ease data presented to individual probes
  
  
• Statistics gathered on all traffic. Call recording (waveform captured) used on trigger-met calls
  
  
• Results
  
  
  • Unlimited recording of signaling and traffic subject to hard disk storage
    
    
  • A web server for remote access of near real time measurements
    
    
  • Customizable and detailed report development capability

Screen Shot of High capacity PacketScan™ Architecture

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PacketScanWeb™

• Facilitates result display using a web interface
  
  
• View real-time data, navigate through records, filter the collected VoIP traffic summary
  
  
• Graphically analyze the call volume, MOS, call completion, failed calls, completed calls, PDD, and so on through a simple web browser.

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