Ethernet/IP Tester

Packet Data Analysis (PDA)

(Traffic Analysis Tool for Packet over IP/TDM)



Packet Data Analysis (PDA) is an outstanding tool for live monitoring of signaling and traffic over IP/TDM. Packet Data Analysis (PDA) is distributed with GL’s Packet Analyzers, allowing users to monitor live IP/TDM networks including capture, analysis, and reporting of every call in detail. Supported protocols include SIP, SIP ED137B, RTP, MEGACO, MGCP, H.323, Skinny (SCCP), RANAP (UMTS IuCS), PPP, GSM A, ISDN, SS7, MAP, CAP, INAP, GSM, and CAS.

GL’s Packet Analyzers can capture IP packets over different transmission lines, including IP, T1, E1, T3, E3, and OC-3 STM-1 / OC-12 STM-4. PDA then processes the captured packets, identifies, and segregates calls based on signaling and traffic parameters.

Packet Data Analyzer (PDA) is a real-time IP, TDM, and VoIP analysis tool in PacketScan™, SS7, ISDN, GSM, CAS,  and MLPPP Analyzer (T1 E1, T3 E3OC-3 STM-1 / OC-12 STM-4) that non-intrusively captures and monitors live IP, TDM, VoIP, and IP based Video traffic.

  • Segregates, captures, and collects statistics on VoIP/TDM calls.
  • Provides graphical presentation of analysis, including ladder diagrams of protocols
  • Monitors QoS (quality of service) on voice and video calls for IP

PDA is an outstanding tool for live monitoring of VoIP/TDM traffic. It 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.
Detailed call statistics such as packet lossgapjitterdelayRTP performance statisticsR-factor & MOS scores, and unparalleled voice band statistics can be monitored simultaneously. Sophisticated filters permit zooming and recording of specific calls of interest. All or filtered traffic can be recorded into a trace file.
Users can listen/record audio and video data of a session VoIP calls in real-time; perform power, frequency, spectral, tone and digit analysis, and video analysis with ease and precision; get an exact picture of QOS (quality of the service) and the technical adherence of the system under test (adherence to the protocols specified by the standardizing authority).
Packet Data Analyzer supports the following three views:

  • Summary View (Call Quality Matrix) displays complete summary of VoIP/TDM call information in graphical format along with a summary of alerts. 

  • Detail View (Diagnostic View) displays packet by packet statistics for particular call information in tabular format. This allows the user to have a detail look at the two (or one) RTP sessions that are part of a single call. This distinction assists in any comparisons that are to be made between the two sessions. Here each frame of the selected session is dissected and its contents are displayed in a tabular form for easier viewing and comparisons. Vital aspects from the RTP frame needed for close analysis are included provides in tabular and graphical formats. A host of counters gives the user an instantaneous snapshot of the VoIP/TDM traffic on the network.

These interfaces allow users to define parameters such as E-Model based MOS and R-Factor score, VQmon settings, & Dynamic Payload Mapping. It also supports real-time digit capturing like DTMF, MF and user-defined digits/tones.

  • Registration Summary View (IP) displays statistics and status of the SIP registration process, an active registration graph, and registration trace graph of each SIP registration.

Packet Data Analysis (PDA)

Main Features

Packet Data Analysis
  • RTP packet statistics for each direction of a call
  • Full RTP Analysis with audio capture/playback supported for all common codecs.
  • Supports decoding of AMR and AMR_WB codec with IuUP  Header
  • Supports decoding of Voice over LTE
  • A host of counters gives the user an instantaneous snapshot of the VoIP traffic on the network
  • Pictorial representation of the statistics including ladder diagrams for the calls of various protocols.
  • Ability to export complete or selected call summary report of PDA in PDF file format
  • Ability to export and analyze call detail records of completed calls using advanced Excel® addin.
  • These reports can be further analyzed using custom Excel® addin.
Performance Metrics
  • Signaling, audio, and video QoS parameters for each VoIP call
  • T.38 Analysis - The application has the call graph and T.38 ladder diagram display. User can decode T.38 frames received over VoIP calls and can have ladder diagram for T.38 traffic flow, reassemble the fragmented data and to identify the T.30 message from it.
  • Displays summary of signaling, audio, and video parameters such as Source/Destination Video Channels, Media Type, SSRC, Average Delay/Gap, Packet Counts, Media Delivery Index (MDI- (Delay Factor : Media Loss Rate)), and Frame Rate are calculated and displayed for all video calls.
  • Minimum, maximum, and average Round Trip Delay (RTD)
  • Inband (DTMF & MF) events, RFC 2833 events, RTP/RTCP packet count and reports per direction
QOS Parameters
  • E-model (G.107) based MOS/R-Factor scores
  • Media Delivery Index (Delay Factor: Media Loss Rate) for video calls
  • H.263, H.264 codec support
  • Jitter, Delay, and Gap for Audio and Video traffic
Traffic Recording
  • Supports capturing of voice, digits, tones and FAX etc to *.PCM file format.
Triggers and Actions
  • Filter captures based on protocol parameters followed by a set of actions for the completed IP/TDM calls.
  • For example, in case of ISUP protocol filtur capture parameters such as OPC, DPC or CIC and the set of actions are save call, send mail, trigger alarm notification etc for the completed calls.
Traffic (Digits, Audio, Video, Fax) Handling
  • Segregation of IP traffic, VoIP, and Fax calls
  • Extracts fax images in TIFF format for Fax calls
  • Audio capture/playback - Listen and Record RTP (Audio) streams
  • Record Video and Video QoS Statistics
SIP Registration Details
  • Registration statistics and trace messages depicted graphically.
  • Provides the registration summary of each SIP registration including the user agent, registrar, status, registered time, expiry time, time to live, remaining time, and Registration Request Delay (RRD).
Supported Codecs
  • R factors/MOS supported for more audio and video codecs.
    For more details visit Supported Codecs
Exporting Calls
  • Supports saving the selected calls from traffic analyzer into *.HDL, *.PCAP, or *.PCAPNG formats.

Detail Packet Analysis

Packet Data Analysis (PDA) is an outstanding tool for live monitoring of signaling and traffic over TDM. Packet Data Analysis (PDA) is distributed with GL's CAS, ISDN, SS7, UMTS, and GSM protocol analyzer. Allowing users to monitor live TDM networks including capture, analysis, and reporting of every call-in detail. Supported protocols include CAS, ISDN, ISUP, CAMEL, MAP, INAP, and GSM.

GL's Packet Analyzers can capture TDM traffic over different transmission lines, including T1, E1, T3, E3, and OC-3 STM-1 / OC-12 STM-4. PDA then processes the captured frames, identifies, and segregates calls based on signaling parameters to generate reports.

Packet Data Analyzer supports Summary View which display complete summary of TDM call information in graphical format along with a summary of alerts.

Packet Data Analyzer (PDA) Summary View

Packet Data Analyzer (PDA) Summary View

Working Principle

Packet Data Analyzer (PDA) records bi-directional traffic of caller and callee into two PCM files on the bearer channels associated to Call. Bearer channels can be extracted from the signaling information which can be mapped to Data Link Group configuration and it varies for different protocols. For example, ISDN calls gives channel number, ISUP calls gives Circuit Identity Code (CIC), user needs to pre-configure datalink group mapping for PDA to record traffic.

PDA acts as a client and connects to WCS server to record PCM files. Using the bearer channel extracted from signaling information PDA will scan data link groups for mapping and records the Traffic.

Screenshots of Data Link Groups for ISDN, ISUP, CAS, GSMA protocols.

ISDN Data Link group

ISUP CIC Mapping

CAS Data Link group

GSMA Data Link group


Graphs are provided in The PDA Summary and Detail Views for key values to give a pictorial representation of the statistics, thereby allowing the user to monitor the network with ease; following graphs are displayed in PDA for TDM Active Calls Graph and Call Graph.

ISDN Active Calls Graph

ISUP Active Calls Graph

CAS Active Calls Graph

GSMA Active Calls Graph

Call Graph displays the message sequence of captured CAMEL, MAP, INAP, ISUP, ISDN, and CAS calls. For TDM protocols includes CAS, ISDN, SS7 information such as the Timeslot, Caller, Callee, and Release Cause.

Message sequence pictorially display all the messages exchanged in a session with relative time stamp of the frame (from the call start time) and frame numbers. Frame number is provided to identify the message to the corresponding frame in Packet Data Analyzer. For example, in the following figure, the ISDN call capture between two Source (#1) and Destination (#2) devices shows that, the call is placed from Device #1 to the Device #2. User can also view the decoded message by selecting a message displayed in the graph.

ISDN Call Graph

ISUP Call Graph

CAS Call Graph

GSMA Call Graph

Performance Metrics

  • Call Summary displays signaling parameters for each call.

    Signaling parameters include Caller & Callee id information, call duration, call status, call-initiated time, call established time, call stop time, call duration, call terminator, call failure reason, and total signalling frames.

Call Summary - Signaling Parameters

Triggers and Action Feature

  • Allows to filter calls based on CAS, ISDN and SS7 protocol parameters followed by a set of actions for the completed calls.
  • The actions include saving a call to a file, recording the audio to a file, sending an email, generating an alert summary, creating Call Detail Records, and viewing custom calls in summary view, and extracting fax images from the captured calls in TIFF format.
  • Users can specify the file formats of calls as *.hdl, *.pcap, *.pcapng, and/or *.wav format. Call Detail Record outputs 3 CSV files, call master record, call side record, and call events record, along with the voice file recordings for each direction. These files can be used with GL's Voice Band Analyzer, and Call Data Records for further analysis and retrieval of calls of interest

Triggers and Action Settings

  • Alert Summary - Generates alerts when particular vital parameters go beyond a specified value. The Alert Summary provides an active list of the alerts that have occurred during the test session.

Alert Summary View

Audio Handling Features

  • Save Call

    Supports Save Call feature to save successful and failed calls in either in GL's proprietary *.HDL file format, Ethereal *.PCAP file format, or *.PCAPNG file format. This allows the users to get data from real-time traffic locations for detailed analysis of a flawed call.

    Save Call

Acts as a Probe in Network Monitoring System

GL's Network Monitoring System uses probes with PDA to prepare and send detail packet statistics, call quality measurements, and Call Data Records (CDRs) to a centralized database. Later these records can be viewed remotely using a web client with graphical and historical reports. For more details, click Packet Monitoring and Surveillance System.


Please Note: The XX in the Item No. refers to the hardware platform, listed at the bottom of the Buyer's Guide, which the software will be running on. Therefore, XX can either be ETA or EEA (Octal/Quad Boards), PTA or PEA (tProbe Units), UTA or UEA (USB Units), HUT or HUE (Universal Cards), and HDT or HDE (HD cards) depending upon the hardware.

Item No. Item Description
  For  IP Analyzers
PKV100 PacketScan™ with Packet Data Analysis
PKV101 PacketScan™ - Offline with Packet Data Analysis
PKV120 PacketScan™ HD – High Density IP Traffic Analyzer w/ 4x1GigE
includes PKV100 – Online (not Offline) for temporary audio codec support
PKV120p PacketScan HD™ w/4 x 1GigE - Portable
PKV122 PacketScan™ HD – High Density IP Traffic Analyzer w/ 2x10GigE 
includes PKV100 – Online (not Offline) for temporary audio codec support
PKV122p PacketScan HD™ w/2 x 10 GigE - Portable


PacketScan HD™ w/40/100 GigE


PacketScan HD™ ™ w/40/100 GigE - Portable

PKV121 PacketScan™  FB - (Offline Analyzer)
PKV123 PacketRecorder HD™ & PacketRePlay HD™
  For  T1 E1 Datacom Analyzer
XX150 T1 or E1 Real-time GSM Protocol Analyzer
OLV150 Offline T1 or E1 GSM Protocol Analyzer
XX151 GSM Motorola Mobis option
XX031 Enhanced T1 / E1 Call Capture/Analysis Software
XX092 T1/E1 Channel Associated Signaling (CAS) Analyzer 
(includes xx600, xx610, xx620, and xx630; performs R1, MFC-R2, and other CAS Signaling Analysis)
XX093 Call Capture Option for CAS Protocol with PDA
XX100 Real-Time ISDN Protocol Analyzer
OLV100 Offline / Remote ISDN Protocol Analyzer
XX101 Call Capture Option for ISDN Protocol with PDA
XX120 SS7 Analyzer Software
OLV120 Offline/ Remote SS7 Analyzer Software (includes WCS xx600, requires xx640 and xx641)
XX121 Call Capture Option for SS7 Protocol with PDA
XX135 T1 or E1 MLPPP Analyzer
OLV135 Offline T1 or E1 MLPPP Analyzer
XX136 PPP and MLPPP Packet Analysis – Real-time Packet Voice, Video, and Fax Analysis
  For  T3 E3
XX135 T3 / E3 PPP Analyzer (GUI)
XX136 PPP and MLPPP Packet Analysis – Real-time Packet Voice, Video, and Fax Analysis
  For OC3 OC12
Protocol Analysis for PoS OC3 / STM1
Packet Data Analysis (PDA) for PoS OC3 / STM1
Protocol Analysis for PoS OC12 / STM4
Packet Data Analysis (PDA) for PoS OC12 / STM4
Protocol Analysis UMTS  OC3 / STM1
Packet Data Analysis (PDA) UMTS OC3 / STM1
Protocol Analysis UMTS  OC12 / STM4
Packet Data Analysis (PDA) UMTS OC3 / STM1
  Related Software
PXE100 PacketExpert™ Record Playback
ETH100 PacketCheck™
XX020 T1 E1 Record/Playback File Application
XX635 PPP Emulation and Analysis
XX636 MC-MLPPP Emulation and Analysis
  Related Hardware
XTE001 Dual Express (PCIe) T1 E1 Boards
PTE001 tProbe™ Dual T1 E1 Laptop Analyzer with Basic Analyzer Software
HDT001/HDE001 Legacy HD T1 or E1 (PCI) Cards with Basic Analyzer Software
HTE001 Universal T1/E1 Card with Basic Analyzer Software
UTE001 Portable USB based Dual T1 or E1 Laptop Analyzer with Basic Analyzer Software
FTE001 QuadXpress T1E1 Main Board (Quad Port– requires additional licenses)
ETE001 OctalXpress T1E1 Main Board plus Daughter Board (Octal Port– requires additional licenses)

* Specifications and features subject to change without notice.