Overview:
GL provides a variety of solutions for network wide monitoring and surveillance. The solutions consist of:
- Intrusive and non-intrusive "probes" for TDM, VoIP, and Wireless networks
- These probes deployed at strategic locations in a network can transmit and collect voice, data, protocol, statistics, and performance
information, and relay this information to a central / distributed network management system (NMS)
- The NMS may be client server based or WEB based system and consists of a database and applications for controlling, collecting,
and analyzing the information provided by the various probes
GL's current NMS solutions are:
- Digital T1 / E1 Line Monitoring, Test, and Diagnostic System (intrusive and non-intrusive probes)
- SS7, ISDN, and Wireless Protocol Monitoring and Surveillance System (non-intrusive probes)
- Wireless, Wireline, and VoIP Voice Quality Monitoring System (intrusive probes)
- Packet and VoIP Monitoring and Surveillance System (non-intrusive probes)
- Voice Band Analyzer probes that capture, analyze, and measure voice statistics such as echo, noise, power, etc
Digital T1 / E1 Line Monitoring, Test, and Diagnostic System
This system provides network wide management of T1 and E1 lines, including line health, intrusive diagnostics, and much more.
Essential elements of the system are:
- PC based T1 and E1 probes that collect physical and line level status and performance
information. These probes can intrusively test T1 E1 lines and even analyze T1 E1 content. They communicate with the NMS via
TCP / IP communication.
- A "T1 E1 J1 Switch" for non-intrusive monitoring or intrusive diagnostics; The switch is
"fail safe" during power disruptions and USB controlled by the PC that houses the probes.
- The NMS provides an instant overall graphical view of the health of the TDM network with drill down to individual lines; secure
access thru WEB; remote monitor and diagnostics to troubleshoot any T1 E1 line; and a central database for historical performance
data
For more information - please see T1 E1 Line Monitoring, Test, and Diagnostic System
SS7, ISDN, and Wireless Protocol Monitoring and Surveillance System
This system provides a uniform method for monitoring the various protocols and content of TDM, VoIP, and Wireless networks.
Intelligent protocol analyzers extract relevant content and supply this to a central NMS for storage, display, and control.
Essential elements consist of:
- T1 and E1 HD Cards or Ethernet probes that monitor many protocols, including ISDN, SS7, GSM,
CDMA, and others, (visit
protocol analysis page for list of protocols). These probes can
process protocol information at varying levels (intelligent software) to extract information of choice and communicate with the NMS
through TCP / IP. Probes can process multiple protocol links with a digital cross connect providing the link aggregation.
- NMS features include a central database for historical and near real time data storage, a WebServer for "browser based" access
to information, and a collection of applications for performance monitoring, security, fraud detection, alarm monitoring, billing
verification, remote protocol analysis, and others.
See our online demo of NetSurveyor
For more information - please see SS7, ISDN, Wireless Protocol Monitoring and Surveillance System
Wireless / Wireline / VoIP Voice Quality Testing and Monitoring System
This system provides real-time voice quality measurement across a diverse set
of networks. Voice calls are automatically placed between end points; quality is measured and provided for display at an NMS.
Voice measurements include MOS (Mean Opinion Score), round trip delay (RTD), jitter, clipping, voice levels, etc.
The essential elements of this system are:
- Wireless / Wireline / VoIP Nodes - These nodes establish calls and send / receive voice files in real-time in an end-to-end manner.
Specific nodal hardware is available for connection to wireless phones with automatic call control. Wireline and VoIP nodes can connect
to TDM, 2-wire, or VoIP network elements, also with automatic call control. Received voice (degraded) files are transmitted to a
Regional Command Center (RCC) for analysis.
- The Regional Command Center (RCC) controls the "Nodes". It controls, schedules, and analyzes the degraded voice traffic
received by the Nodes. Advanced features include real time monitoring, scripting of voice calls, scheduling of tests, voice quality
testing, round trip delay (RTD) calculations, and much more. The RCC includes a database for storage and retrieval of all quality
information.
- The Remote Client NetViewer™ remotely controls the RCC and can also access, sort, and display all data collected by the RCC.
For more information - please see Intrusive Voice Quality Test and Monitoring System
Packet and VoIP Monitoring and Surveillance System
This system uses GL's Ethernet probe called "PacketScan™" to monitor packet flows in real-time
within a VoIP network. All major VoIP protocols are supported including SIP, H.323, Megaco, and MGCP. PacketScan™ also performs detailed analysis of voice band streams gathering QOS statistics such as MOS (Mean Opinion Score),
total packet count, reordered, duplicate and missing packet counts, gap, jitter, and delay. A central database stores the real-time
and historic data. The system also facilitates various views using a web interface.
The essential elements of the Packet and VoIP monitoring system are:
- "PacketScan™" Probe to gather IP packet information in a non-intrusive fashion and forward
call detail records (CDRs) and statistics to a central database
- A central database which will store the data collected by the probes
- A WebServer which will provide real-time and historic views of the data through various "browser based" clients.
- A Near Real-time Voice-band Analyzer (VBA) for monitoring voice band network traffic
See our online demo of PacketScanWeb
For more information please see our system description of PacketScanWeb
Voice Band Analyzer Probes for Network Monitoring of Voice Quality, Capture, and Measurement
The Real-time Voice-band Analyzer (VBA) is an analysis tool for capturing and monitoring the quality of voice band traffic over
VoIP, TDM and wireless networks. VBA works in conjunction with GL's TDM, Packet, and Wireless non-intrusive capture products:
- VBA with GL's TDM T1 E1 Call Capture and Analysis, or
- VBA with GL's VoIP PacketScan
- VBA with GL's GSM, CDMA, and 3G Call Capture Products
VBA instantly detects voice file captures and with appropriately installed analysis modules, monitors speech levels, noise levels,
line echo, and acoustic echo. Other analysis modules such as ITU-T P.561, P.562, P.563, fax and modem analysis, and many others
can be hosted as plug-ins.
The VBA application can also operates on pre-captured files, making it a near-real time. This package has been designed to work
with other GL Communications Inc. tools such as PacketScan™, Call Capture and Analysis, and many other recording tools. It supports
A-Law, µ-Law, 16-bit PCM (Intel), 16-bit PCM (Motorola) and MS Wave file formats.
See a live demo of the Voice Band Traffic Monitoring System for VoIP, TDM, and Wireless
Networks.
For more information see the Voice Band Analyzer
