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Newsletter: GL Releases Enhanced IP/VoIP Analyzer

Welcome to a December 2009 issue of GL Communicationsí Newsletter providing information on the latest enhancements introduced to our PacketScan™ software, an IP/VoIP Analyzer.

Overview

GL's PacketScan™ is a real-time IP/VoIP analyzer that non-intrusively analyzes and captures live IP traffic, and segregates them into SIP / H323 / Megaco / MGCP calls. It also collects statistics, CDRs, detailed protocol traces, ladder diagrams, and a host of other useful information about VoIP calls. Applications include monitoring of IP phones, Gateways, IP Routers, Switches, and Proxies. Its real-time nature makes it an outstanding tool for live monitoring of VoIP traffic as well as long-term traffic statistics gathering. PacketScan™ can also monitor, report, analyze, and capture calls for infinite time, limited only by the finite space of your hard disk or network hard drive!

Summary of the New Features

  • SIP Performance Metrics

    Additional SIP performance metrics have been provided in statistics counters for Sip calls and are: Session Establishment Ratio, Session Establishment Effective Ratio, Session Defects, Ineffective Session Attempts, Session Completion Ratio, Session Request Delay, and Session Disconnect Delay

  • Call Summary Tab

    In Packet Data Analyzer (PDA) portion of PacketScan™, a new tab has been added that displays Signaling and Audio Parameters for the selected call (SIP, H323, MEGACO Calls).


  • Save Call

    Save Call feature has been enhanced to save the captured trace along with a PCAP compatible file.

  • Alert Summary

    PacketScan™ has been enhanced to generate alerts when a particular vital parameter goes beyond a specified value. The user can specify the criteria based on which the alerts are to be generated. The alerts can be set by selecting an option in Alert Summary and in Triggers and Action Settings.

    Alert Summary tab provides summary of the each alerts that have occurred during the analysis. Each summary has the following columns: Call#, Protocol, Message, Type, Threshold, Value, Caller, Callee, CallId.


  • T.38 Analysis

    T.38 has been enhanced to reassemble the fragmented data and to identify the T.30 message from it. Identified T.30 message is displayed in the T.38 ladder diagram.


  • VQMon Setting

    VQMon Setting is enhanced with an option to select the Japan or North America International standard code. These standards are followed in calculating MOS scores based upon R-Factor scores.

Other Features Include:

  • Monitor progress of up to 1300 simultaneous calls with bidirectional RTP traffic
  • Supported protocols - SIP (SIP Session Initiation Protocol RFC 2543 and RFC 3261), Megaco RFC 3525, Megaco RFC 3015, MGCP, H323/H225, and RTP
  • Supports decoding of MAC, IP, SIP, UDP, TCP, RTP, RTCP, T.38 (Fax over IP), and SMPP
  • Call capturing based on call agents or triggered actions such as MOS, R-factor, jitter, packet loss, duplicate packets, or called / calling numbers (SIP/H323)
  • Full RTP Analysis with audio capture/playback supported for all common codecs

For comprehensive information on the analyzer, please refer to PacketScan™ web page.

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