TMCnews Featured Article
August 14, 2009
GL Communications Announces Enhancements to PacketScan VoIP Analyzer
By Jayashree Adkoli, TMCnet Contributor
GL Communications, a provider of test, monitoring, and analysis equipment for TDM, Wireless, IP and VoIP networks, recently announced few enhancements to its to PacketScan software, a real-time IP and VoIP analyzer that was launched in February.
According to Vijay Kulkarni, CEO of GL Communications (News - Alert), PacketScan IP and VoIP analyzer software non-intrusively analyzes and captures live IP traffic, and segregates them into SIP / H323 / Megaco / MGCP calls. Having the capability to collect statistics, detailed protocol traces, ladder diagrams, and a host of other useful information about VoIP calls, PacketScan is ideal for long-term traffic statistics gathering, he said.
“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,” Kulkarni said in a statement.
Some of the applications of PacketScan include monitoring of IP phones, Gateways, IP routers, switches, and proxies.
With the help of PacketScan, hundreds of calls can be monitored in real-time including detailed analysis of selected voice band streams. With the addition of enhancements, PacketScan is capable of handling up to 1300 simultaneous calls with bi-directional RTP traffic, the company said.
Officials at GL said that the PacketScan is now enhanced to provide a summary of MEGACO calls. MEGACO is a media gateway control protocol that is used between Media Gateway (News - Alert) and Media Gateway Controller. The MEGACO Statistics provides all possible statistics about MEGACO calls in the network like total, active, completed and failed calls.
The enhanced PacketScan can display summary of each call, which contains signaling information such as physical termination, ephemeral termination, context ID, call start time, call duration as well as information about media sessions associated with it. The media sessions provides information on codec used, MoS and R-Factor scores, jitter, delay, total number of packets received, missing, duplicate and out of order packets counts and percentage.
The ladder diagrams featured in the enhanced PacketScan analyzer can display protocol message sequences. It also provides registration information and displays the decoded information for the selected SIP message. The registration information includes counters for total, active, completed and failed registration attempts.
The Packet Data Analysis interface present in the PacketScan can also display call information in graphical format and in tabular format. The PDA summary offers a detailed summary for all registration request attempts. Each registration summary provides information such as user agent being registered, registrar address, current status of the registration, registered time, registered duration, expiry time and remaining time.
Moreover, PacketScan also features call capturing based on call agents or triggered actions. Full RTP Analysis with audio capture/playback is also supported for all common codecs, the company said.
In addition, the PacketScan also supports decoding of MAC, IP, SIP, UDP (News - Alert), TCP, RTP, RTCP, T.38, and SMPP.
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Jayashree Adkoli is a contributing editor for TMCnet. To read more of Jayashree's articles, please visit her columnist page.
Edited by Amy Tierney

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