|9th March, 2018
Fax and Modem Test Solutions
To successfully deploy fax services requires extensive network design, test and traffic engineering. Test equipment can prove valuable in this process, if it can: Generate and receive fax signals in bulk over wired and wireless networks, monitor and distinguish fax signals in real time for traffic engineering and network design purposes, and analyze fax signals after capture for troubleshooting failed or poorly handled calls.
GL provides comprehensive Fax Testing Solutions over IP, TDM and PSTN networks using its products. A snapshot of Fax and Modem Test Solutions is provided below.
Bulk Fax Call Generation using MAPS™ or VQuad™ Dual UTA
(over TDM and 2-Wire)
(over Ethernet/IP, TDM, and 2-Wire Networks)
(over Ethernet/IP, TDM
and 2-Wire Networks)
GL’ Fax Simulator (XXFT0) is capable of bulk (100's) fax calls over many T1/E1s, over two-wire FXO-FXS lines, and over Ethernet/IP networks. This software is capable of transmitting and receiving fax calls. The software can emulate many "virtual fax machines" – transmitter as well as receiver.
Fax Simulator (XXFT0) has two versions – one, as a stand-alone command-line fax simulator application and other, integrated as a module within GL's MAPS™ IP products, MAPS™ TDM products, and VQuad™ software.
Fax simulator for IP supports both RTP G.711 Pass Through Fax Simulation (PKS200) and T.38 Fax Simulation over UDPTL (PKS211).
Fax simulator for TDM supports T.30, V.17, V.27, V.29, V.33, and V.34, with TX and RX fax rate from 2400 bps to 33,600 bps. Supports all variations of fax, such as page size, resolution, data rates – including high speed fax such as V.34 and codec types.
GL’s Message Automation & Protocol Simulation (MAPS™) and VQuad™ supports real-time emulation of fax calls using Fax Simulator (XXFT0) over established call over T1 E1/PSTN networks – supported protocols include - CAS, ISDN, SS7, GSM A, and FXO FXS emulators. Typical applications of our Fax Emulation software are load testing of fax servers, qualification testing of T.38 Gateways, testing of ATAs (Analog Terminal Adapters), testing of fax machines, and many more.
GLInsight™ enables offline decoding and analysis of pre-recorded modem and fax transmissions. The transmission signals can be recorded from PSTN or IP media.
GL Insight™ receives the recorded modem or fax transmissions in one of the two ways:
GLInsight™ demodulates the raw transmissions and presents the decoded data in an easy to understand format. It produces extensive log files with all relevant debugging information for easy event tracing which in turn provides insight to potential sources of problems.
- As raw signal files (PCM files) - in either mono or stereo format
- As IP capture files - created by capturing devices or by software
Supported Fax and modem standards are –
Modem traffic - V.92 (Quick Connect and Modem-on-Hold supported, PCM-upstream not supported), V.90, V.34, V.32bis/V.32, V.22bis/V.22, V.21, V.23, Bell 103 / Bell 212
- T.38 Stream (IP Packets)
- T.30 Decoder using G.711
- Fax traffic - V.34HD, V.17, V.33, V.29, V.27, V.21
FaxScan™ application is a fax decoder/demodulator application that processes 2-Wire or 4-Wire captures and analyzes voiceband traffic files for fax traffic. The FaxScan™ has two versions – one, as a stand-alone command-line fax analysis application and the other, integrated as a module within GL's Voice Band Analyzer application and PacketScan™, with licenses as FaxScan™ (VBA038 and PKV104) respectively.
FaxScan™ application processes captured files and produce the Fax TIF image and other transmission information. Some important features -
The FaxScan™ module provides statistics for Fax traffic analysis including Fax Status, Standard, Data Rate, Resolution, Encoding, Page Size, Error Lines, Total Lines, Total Bytes, and Total Pages.
- Handles audio streams sampled at 8-Khz.
- Handles G.711 A-Law and μ-Law streams of 8-bit
- Handles A-Law and μ-Law streams extracted from RTP sessions within PCAP files
- Fax traffic - V.17, V.21, V.27, V.29, V.33, V.34
We value your association with us. Write to us if you have queries on testing needs. Thank You.
GL Communications Inc
818 West Diamond Avenue - Third Floor
Gaithersburg, MD 20878
Phone: (301) 670-4784 Ext. 114
Fax: (301) 670-9187