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
Summary of Related Transmission and Capture Software | Buyer's Guide

Download MFC-R2 Call Capture & Analysis Product Brochure

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 (xx070) - 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. This software is identical to Call Capture and Analysis (xx030) but includes some additional documentation on MFC-R2 protocol.
R2ANA - This is a companion program to xx070. It's a stand alone DOS based program that processes the captured files from xx070 ("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 (xx070) provides the capability to non-intrusively record calls directly from E1 lines. The system uses Dual PCI Ultra E1 Cards, or GL's Dual 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 (Cool Edit, Cool Edit Pro, 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:
- One Dual PCI Ultra E1 Cards, or
- Two Single PCI Ultra E1 Cards, or
- One Dual Laptop E1 Analyzer

Side View of Ultra E1 Cards

One Dual or Two Single Ultra E1 Cards having digital and analog inputs and outputs are shown. Alternatively, GL's Dual Laptop E1 Analyzer can be used for convenience and portability. Digital inputs are used to non-intrusively interface to E1 lines in bridge or monitor modes. Digital outputs can be used to generate digital E1 signals. Analog outputs can be used to listen, in real-time, to DS0 audio in both directions. Analog inputs can be used to insert audio signals into E1 streams. An external clock input/output provides clocking flexibility. A Sound Card (provided with Lunchbox PC) provides playback of recorded calls via a PC multimedia system/speakers.

Dual Laptop E1 Unit

The Laptop E1 Analyzer is an innovative new product that consolidates the essential pieces of industry-standard test equipment into a powerful, portable, PC-Based E1 testing solution. Utilizing familiar computer user interfaces, it provides a comprehensive and versatile E1 test set at a competitive price.
Terminate, Bridge, or Monitor interfaces to E1 lines with RJ-45 connectors (Bantam conversion cables available), for non-intrusive connection refer to diagrams:

- RJ-45 Y Bridges and cables
- Alternative RJ-45 Y Bridges and cables
- DSX Patch Panel Monitor connections
- RJ-45 Splitter connection method

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:

Summary of Related Transmission and Capture Software

xx020 - Record and Playback of Files - Simple GUI based software can record an entire T1 or E1 or individual timeslots in both directions;
xx030 - Call Capture and Analysis - GUI based software that provides the capability to record complete calls directly from T1/E1 lines, non-intrusively. Call capture can be manually or automatically triggered by signals from both directions (east and west) of transmission;
xx070 - MFC-R2 Capture and Analysis - GUI based software for call based recording on E1 lines, can record based on CAS or ISDN call triggering;
xx019 - Tx/Rx File Utility - this is a console program and can be invoked from any user program for capturing or transmission of files;
xx600 and xx610 - Windows Client Server Scripted Control - A non-GUI based program - great for remote and scripted control of captures, transmission, and more;

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 DPT, DPE, PCT, PCE, HDT, HDE, DLT, DLE or UTE depending upon the hardware.

Item No. Item Description

XX070 - MFC-R2 Call Capture and Analysis Software & the following accessories,
- 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

Signalling 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

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