GL Communications - MFC-R2 Capture & Analysis

Overview of MFC-R2 Software Packages | Overview of MFC-R2 Software | E1 Interface Capability
MFC-R2 Call Recording and Capture Features | Call Playback and Viewing Features
MFC-R2 Analysis using R2ANA | Additional Sample Screens
Buyer's Guide

Overview of GL's MFC-R2 Analysis Software Packages

GL provides a variety of software to perform MFC-R2 signaling analysis and call capture. They are available as,

MFC-R2 Capture and Analysis (xx030) - This software described in greater detail below permits automatic capture of calls in systems using MFC-R2 protocol. The user can use signaling bits to trigger the start and stop of capture. Both directions of the call are captured in an "east" and "west" file along with a "signaling" file. All inband PCM data is captured including digits and voice.
R2ANA - This is a companion program to xx030. It's a stand alone DOS based program that processes the captured files from xx030 ("east", "west", and "signaling") and displays the ABCD signaling along with the compelled digit sequence. This is discussed in further detail below.
VB Client - a Visual Basic GUI Client that connects to the GL Server and performs MFC-R2 signaling and digit analysis and other functions.
DTMF/MF/MFC-R2 Detector/Generator - The detector application detects and displays in real-time DTMF, MF, MFCR2-forward, and MFR2-backward digits as they are received. The generator application can generate the same digits along with signaling bits. Real-time bi-directional detection of MFCR2 forward and backward digits is possible with two instances of the capture application.
Windows Client Server (WCS) Scripted Control - This non-GUI based program is great for remote and scripted control of captures, transmission, detection and more. MFC-R2 detection and analysis can be done thru simple scripts transmitted to the server or using the VB GUI Client described above.
Strip Chart Application - a real-time graphical application that captures signaling as well as PCM data. Timing relationship of signaling bits and MFCR2 digits is easily viewed and analyzed.

Overview of MFC-R2 Call Capture and Analysis Software

The MFC-R2 Call Capture and Analysis Software provide the capability to non-intrusively record calls directly from E1 lines. The system uses Ultra HD PCI E1 Cards, Universal E1 Cards, or Portable based USB Laptop E1 Analyzer to interface non-intrusively with E1 lines. Calls can be manually captured or automatically triggered for capture from both directions (east and west) of transmission. ISDN and CAS (R1, wink start, MFC-R2) signaling triggers are supported. Automatic Call triggering can be done in one of the following ways:

A,B,C,D - Signaling Bits- with user-defined start and stop ABCD signaling bits to initiate and terminate recording of files on chosen timeslots - useful for CAS calls. In addition, CAS signaling such as DTMF digits, MF digits, and MFC-R2 digits conveying "called and calling numbers" are decoded and attached as part of the captured file name.
Tone - user-defined mono or dual tones can trigger the capturing of a call CCA - useful for fax calls
Signaling + Tone - a combination of user-defined Start/Stop signaling bits followed by a mono or dual tone (user-defined) within a specified timeout period - useful for capturing fax calls
ISDN calls - capture gets triggered when any ISDN calls are placed. Called and calling number can be gathered as part of the capture process and attached to the captured file name. During call capture, the following parameters are displayed: ISDN message types, CRV, Time slot, card number, called and calling numbers.

Subsequently, captured calls can be played back and analyzed in time and spectral modes using a commercial sound card, built-in high fidelity speakers, and audio viewing software (Adobe Audition, Goldwave). This software works in conjunction with the CMU (Call Management Utility), to automatically identify captured calls and calls being captured. You can also listen to calls that are in progress.

Typical applications are:

Call recording for post analysis
Analysis of single/dual tones, DTMF and MF digit analysis (frequency, power, duration)
Analysis of call quality (speech levels, noise levels, echo return loss, speech clipping, impulse noise, and other impairments)
Call activity, call density, and call volume analysis
Monitoring and recording ISDN and CAS calls
Sorting of Calls by "called" and "calling" number
Listening to finished calls and active calls as they are occurring
Remote monitoring of calls including remotely listening to calls

E1 Interface Capability:

Uses any of the following hardware:
- HD E1 PCI Cards, or
- Universal E1 Card, or
- Portable USB based Dual E1 Laptop Analyzer

MFC-R2 Call Recording and Capture Features:
Call Capture Menu

The MFC-R2 Call Capture Menu is used to initiate recording of calls, either automatically or manually. The signaling bits status/ frequency/power of the East and West directions can be shown in real-time for all the channels in both directions. Indicated is the channel for which a recording is taking place and the files names to which data is being stored. Any channel can be monitored without recording taking place. Speaker and volume settings can be adjusted. Scanning mode is possible wherein all 30 channels are scanned for call initiation and recording. A message area provides status of the capture process. Other features include,

Automatic or manual initiation of call recording
Real time display of signaling bits for all channels in both directions
'Scan' or 'Channel' mode for call initiation detection and capture
User specified record time, or termination at call completion, or manual termination
PCM data captured to two synchronized disk files (east and west directions) for post processing
All call data are captured including signaling bits, voiceband data, and signaling protocol data (e.g. DTMF or MF or MFC-R2 digits)
ISDN calls recorded with CRV, ISDN message type, channel, direction, called and calling numbers. ISDN calls can be captured with customized called and calling number filter.
Various File Naming Conventions based on the type of capture. The file naming conventions suit various types of capture applications such as MFC-R2, signaling, ISDN capture, manual capture etc.

Call Playback and Viewing Features:

Combined Time and Spectral Views

Time Series View

For a recorded call, a graph of the amplitude vs. time can be displayed. The display can be for either one side or both sides of the call. Playback, zoom-in, zoom-out, and other options are available for analysis of partial and/or full call data/ Signaling data during call set-up can be analyzed e.g. DTMF/MF, dial and busy, tones at microsecond duration granularity. Every sample is recorded and displayed.

Spectral View

A graph of power level vs. frequency is displayed for the user-selected portion of the recorded call. The frequency resolution and frequency band of interest is also user settable. The display can be either one side or both sides of the call. Useful for analysis of DTMF/MF, dial and busy tone analysis and speech and modem frequency analysis. Spectrogram displays are also possible.

MFC-R2 Protocol Analysis using R2ANA.EXE

R2 Tabular Analysis

A special DOS application is provided for MFC-R2 digit analysis (r2ana.exe). With this software captured files can be analyzed for R2 tones and signaling. Forward and backward paired tones are detected and displayed with time stamped indications of digit durations and signaling changes. Call duration, timeslot, date, and time of occurrence are also recorded.

Additional Sample Screens:

Bridge and Monitor Connections

Buyer's Guide

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 HDT, HDE, HUT, HUE, UTA or UEA depending upon the hardware.

Item No. Item Description

xx030 MFC-R2 Call Capture and Analysis Software

CCA Cable Kit 2 -SA007e Y Bridges, 1 - SA017a & 1 - SA017b Straight & Crossover Cables,
& 1 - SA007k Mono to Stereo Miniature Phone Y Cable
Goldwave Software (SA048)

Related Software

XX020

XX022 Record/Playback File Software

DTMF/MF/MFC-R2 Detector and Generator Software

XX030

XX024

XX050

XX600 Call Capture and Analysis

Real-Time Strip Chart

Signaling Bits Recorder

Windows Client Server Scripted Control Software

SA026 Adobe Audition Software

SA048 Goldwave Software

SA021 File Edit Software

VBA032 Near Real-time Voice-band Analyzer

Related Hardware

HDT001/HDE001 Legacy HD T1 or E1 (PCI) Cards with Basic Analyzer Software

HTE001 Universal T1/E1 Card

UTE001 Portable USB based Dual T1 or E1 Laptop Analyzer

Back to Protocol Emulation Index Page