Topline System Co., Ltd.
- Manufacturer of RF shielded rooms, EMC chambers, EM shielded and test chambers and enclosures.
- http://www.topline-system.com.tw/

ORBIT/FR, Inc.
- Develops, markets and supports automated microwave test and measurement systems.
- http://www.orbitfr.com/

TesCom
- Providing repair, calibration, refurbishment and sales of telecommunication test equipment.
- http://www.tescomusa.com/

denk-stein:net
- Supplies measurement and test equipment for telecommunications networks.
- http://www.denk-stein.com/en/home.htm

Inala Technologies (Pty) Ltd.
- Test and measurement equipment, monitoring systems and customised solutions for GSM networks in sub-Saharan Africa.
- http://www.inala.co.za/

RTI Products
- Manufacturer of electronic snow sensing and anti-icing systems for the telecommunications industry.
- http://www.rtiproducts.com/

NTI
- Manufacturer of test instruments for the professional audio industry, the broadcast market and the loudspeaker industry.
- http://www.nti-audio.com/

Hermon Labs
- Provides fully automated compliance, pre-compliance, development and production testing solution for analog PSTN, acoustic, xDSL, VoIP, T1, E1 and ISDN PRI interfaces.
- http://www.hermonlabs.com

Endace
- Endace manufactures network monitoring interface products that can test and analyze telecommunications and network equipment.
- http://www.endace.com

Schultz Communications, Inc
- Supply a range of telecommunications equipment and tools . Products include test and measurement instruments, wire and cable and speciality tools.
- http://store.phonetx.com/

Omnicor
- Supplier of IP traffic generators for gigabit ethernet switch, router and network performance testing.
- http://www.omnicor.biz/

Molher Electronica
- Designs and developes measuring instruments for copper pair and fiber optic and offers automation solutions for xDSL interoperability testing. [May not work properly in all browsers]
- http://www.molher.com/

SHF Communication Technologies AG
- Manufacturer and supplier of bit error rate test systems, broadband amplifiers, digital modules and passive microwave components and related equipment.
- http://www.shf.de/

Shenick Network Systems Limited
- Offers information about test suites for network infrastucture.
- http://www.shenick.com/

Spirent Communications: Test and Service Management Solutions
- Spirent Communications provides test and service management solutions for the communications industry.
- http://www.spirentcom.com

Sunrise Telecom Inc.
- Develops and manufactures telecommunications test and measurement solutions.
- http://www.sunrisetelecom.com/

Ixia
- Provides test tools, development and testing services for call centers, communication networks, and network devices.
- http://www.ixiacom.com/

The Larry McGee Company
- Manufactures industrial grade communication and control equipment.
- http://www.lmgee.com/

Frame Communications Ltd
- Designs, developes and manufactures test and management solutions for a wide range of protocols and system types as well as for network surveillance of billing verification and revenue assurance.
- http://www.frame.co.uk/

WAVETEL
- Designs, develops and sells ISDN, SS7, V5 and PSTN protocol and traffic analysers for transmissions systems.
- http://www.wavetel.fr/

GAJ Technology
- Simulators for providing proof of compliance for telecommunication equipment and for testing modems, DSLAMs, network cards or any device that uses CAT 5/5e cable.
- http://gaj.ca/

The Board Room Inc.
- Supplier of revenue assurance and switch testing equipment and systems.
- http://www.boardroom.biz/

GUISYS Corporation
- Manufacturer of low cost PDA/PC driven POTS, TIMS, DS1, DS3, and ISDN hand-held test equipment.
- http://www.guisys.com/

TX Technology Corp.
- Designs and manufactures intelligent monitoring and control systems, remote and addressable sensors, computer controlled air dryer systems, and pressure and flow transducers.
- http://www.txtechnology.com/

Telephone Tools of Georgia
- A manufacturer and distributor of unique and hard to find telecommunicaions tools from the turn of the century through today.
- http://www.telephonetools.com/

Tracewell Systems, Inc.
- Manufactures and integrates systems using VME, VME64x, VXI, CompactPCI and PXI for the telecommunications, military test and measurement and medical industries.
- http://www.tracewellsystems.com/

GSI Labs
- Sells network monitoring equipment to telecommunications companies. Includes software screenshots, product details, and FAQ.
- http://www.gsilabs.com/

GN Great Nordic
- Develops telecommunication network performance monitoring and hands-free communicationis solutions. (Copenhagen Stock Exchange: ISIN code DK001027263-2).
- http://www.gn.dk/

Telebyte Inc
- Local Loop Simulators and Noise Generators for ADSL, ADSL2, ADSL2++, G.SHDSL, VDSL Testing.
- http://www.telebytebroadband.com/

Solinet
- High technology company focusing on turn-key solutions for the implementation and validation of signalling systems.
- http://www.solinet.com/

Skyline Communications
- Supplier of software monitoring and control solutions for the HFC broadband, satellite, broadcast and telecom industry.
- http://www.skyline.be/

MSS Power Systems
- Providers of application tools to the telecommunications and power contractors.
- http://www.msspower.com.au/

EML European Market Liaison
- Supplier of telecommunication test equipment for the local loop including Records Purification (RPS).
- http://www.eml-uk.com/

Ctc Union Technologies Co.,Ltd.
- Hardy protocol, transmission analyzer, interface converters, Tl/El DSU/CSU digital access unit SDSL series, BOB and IAN cable tester, communication products series.
- http://www.ctcu.com/

Tucana Telecom
- Protocol test and measurement equipment, monitoring, simulating, load generators and emulator equipment for communication interfaces.
- http://www.tucana.com/

System Studies, Inc.
- On-line resource for cable pressurization information and technology.
- http://www.airtalk.com/

Summitek Instruments
- Offering Summitek intermodulation and BaseStAR interference analyzers and colocation equipment.
- http://www.summitekinstruments.com/

Sofimation
- Multipath Fading Simulator for GSM850, GPRS, 3G, CDMA2000
- http://www.sofimation.com/

Rohde & Schwarz
- Manufacturer of spectrum analyzers for measurements in the frequency-domain, time-domain and modulation-domain (vector signal analysis).
- http://www.rohde-schwarz.com

RAN Systems Home Page
- Provides call test monitor and master clocks to the 911 Emergency community. Includes product details and industry news events list.
- http://www.ransystemsinc.com/

Radcom
- Provider of analysis and monitoring solutions for VoIP, 3G Cellular and Datacom
- http://www.radcom.com/

PriLink
- Telecommunications management tools with specific emphasis on North American ISDN-PRI services.
- http://www.prilink.com/

Net-O2 Technologies
- Provider of communications software, network testing and network security software solutions and services from India.
- http://www.net-o2.com/

NetHawk Oyj
- Provides mobile network equipment vendors and operators with instruments, systems and related services for accelerating development and improving quality.
- http://www.nethawk.fi/

Megatel Industries Corp.
- Provider of digital data communication and telecommunication equipment.
- http://www.megatelindustries.com/

Lemco Tool Corporation
- Manufacturer of tools for construction and maintenance of fiber optic and coaxial cable systems. Features detailed product drawings and tool tips.
- http://www.lemco-tool.com/

KSI Corporation
- Manufactures timing boards for use in telecommunications, government and test and measurement applications.
- http://www.ksi-corporation.com/

IneoQuest
- Network performance testing, protocol, debug analysis tools.
- http://www.ineoquest.com/

Delsat Group
- Delsat is an Argentinian company which manufactures metering and monitoring equipment for telecommunications.
- http://www.delsatgroup.com/

Circadiant Systems
- Manufactures optical test equipment.
- http://www.circadiant.com/

Catapult Communications Corporation
- Develops, manufactures, markets and supports an advanced software-based test system offering an integrated suite of testing applications for the global telecommunications industry. (Nasdaq: CATT).
- http://www.catapult.com/

Brighton Electronics, Inc.
- Supplies digital and analog panel meters, temperature and process controllers, and hand-held test and measurement equipment.
- http://www.brighton-electronics.com/

Applied Signal Technology, Inc.
- Design, develop, manufacture and market signal reconnaissance equipment to collect and process telecommunications signals.
- http://www.appsig.com/

JTC Sales, Inc.
- Utility equipment supplier for reel and wind up trailers,Fiber figure 8er and mud duck mudsucker
- http://www.mudsucker.com/

Telsoft Inc.
- Provider of telephone line-powered dialers and other telecommunications testing equipment.
- http://www.dialerbuddy.com/

ValueTesters
- Supplier of datacom, telcom, air conditioning and power quality test equipment.
- http://www.valuetesters.com/

PDS Test
- Company provide a wide range of communications test, development, demonstration and connectivity solutions.
- http://www.pds-test.co.uk/

Ticknall Communications
- Suppliers of telephone and data communications test and monitoring equipment
- http://ticknall.com/

Allied Analogic
- Manufacturer of the modem line tap used by POS, ATM and the telecommunications industry to troubleshoot analog data communications on telephone lines.
- http://www.aalogic.com/

TraceSpan
- Industry's first non-intrusive analyzer for vendor-independent testing of ADSL and ADSL2 networks.
- http://www.tracespan.com/

LP Technologies
- Providing engineering, marketing and sales of RF products, primarily in the electronic and software product market place.
- http://www.lptech.com/

Noise Com
- Manufactures devices, test instruments and systems for evaluating noise susceptibility of wire-based and wireless communications components and networks
- http://noisecom.com/

Boonton Electronics
- Manufacturer of RF power, microwave, audio, modulation and impedance test instrumentation and sensors.
- http://boonton.com/

MarQuest Limited
- Provides equipment and services for analysis and testing in digital telephony (PCM) transmission and signalling systems.
- http://www.marquest.com/

Acterna
- Manufactures wide range of instrumentation and systems for communications equipment development and maintenance. Areas of application include optical transport, data communications, cable and wireless.
- http://www.acterna.com

OEL
- Supplier of telephone installation tools.
- http://www.oelsales.com/

C.E. Cox
- Manufacturer of cable fault locating and testing equipment for industrial and telecommunications applications
- http://www.cecox.com/

Arca Technologies
- Arca Technologies provide a complete range of VoIP, ISDN, VoDSL, xDSL, V5.1, V5.2 and PSTN test and simulation equipment
- http://www.arca-technologies.com/

NS Electronics Service, Inc.
- Sales and service of communications service monitors and equipment.
- http://www.nselectronics.com/

Linkbit
- Anytest product, E1/T1 portable tester, PRI analyzer and other testing units.
- http://www.linkbit.com/

Nutmeg Utility
- Development and distribution of tools, products and services to the telephone, construction and utility industries.
- http://www.nutmegutility.com/

A8619 Protocol Test System
- The A8619 Protocol Test System offers Analysis, Simulation, Emulation of SS7, V5, ISDN, INAP, GSM, GPRS, CDMA and VoIP protocols.
- http://www.a8619.com/

testworx
- Test equipment from several manufacturers for data communications and telecommunications networks. Applications include DSL, T-carrier, fiber optics, signalling and IP networks.
- http://www.testworx.ca/

San Mateo Electronic Supply
- Distributors of Computer, networking cables and accessories. Test equipment for telco, network systems.
- http://www.smelectronics.com/

Mike Sandman
- Supply hard to find problem solving tools, test equipment, telephone repair parts and training videos.
- http://www.sandman.com/

IBEX Systems
- Communications manufacturers representative and reseller firm offering radio, wire voice, data and video telecommunications networking and test equipment.
- http://www.ibexsystems.com/

Consultronics
- Manufacturer of telecommunications test equipment including xDSL cable qualifiers, test sets for ISDN, T3/T1, E1 and TDR.
- http://www.consultronics.com/

Aegis
- OSP cable fault location test equipment.
- http://www.aegis.net.au/

Innocor
- Designs and manufactures industry test equipment for broadband and legacy telecom applications.
- http://www.innocor.com/

Telemark Solutions
- Supplier of innovative buried electronic markers used to mark cables, to provide easy cable locating.
- http://www.telemarksolutions.com/

Metro Tel Corp.
- Manufacturer of telecommunications test equipment. Products include subscriber loop, Linemans test sets and cable pipe location equipment.
- http://www.metrotelcorp.com/

Independent Technologies, Inc.
- Design, manufacture and market a wide range of customized communications products.
- http://www.independenttech.com/

Sage Instruments
- Portable and hand held telephony test equipment.
- http://www.sageinst.com/

AGM Elettronica
- Manufactures fault location and measurment equipment for wire and cable manufacturers.
- http://web.tiscali.it/agmelettronica/eng_home.htm

Rochelle Communications
- Global supplier of Caller ID and telephone test equipment.
- http://www.rochelle.com/

Microtronix Systems
- Specializing in the production of telephone testing equipment.
- http://www.microtronix.ca/

MI Technologies
- A leading supplier of microwave instrumentation for testing antennas, radomes, radar cross section analysis, components, EMI/EMC and automotive applications.
- http://www.mi-technologies.com/

Telinc
- Designs, develops and markets (WAN) Wide Area Network access products and communications test equipment.
- http://www.telinc.com/

JFW Industries
- Designs and manufactures RF components including attenuators, RF switches and specialized test systems for telecommunications, OEM test equipment, medical, automotive, and defense markets.
- http://www.jfwindustries.com/

Electrodata Inc.
- Manufacturer of hand-held telecommunications test equipment specializing in T1, DS3, and STS-1 Sonet testing. Includes ISDN, SS7, GR303, frame relay.
- http://www.electrodata.com/

GL Communications Inc.
- Single and dual laptop analyzers provide comprehensive and versatile T1 and E1 testing.
- http://www.gl.com/

KTL Worldwide
- Independent organization for the testing and certification of telecom, IT, wireless and electrical products. Laboratories and accreditations worldwide.
- http://www.ktl.com/

Telephony Software Associates, Inc.
- Serial alarm monitoring of telecommunications equipment: protocol specifications, test procedures, software tools that facilitate installation and troubleshooting.
- http://www.tbos.net/

Frederick Engineering
- Network test equipment manufacturer. Develops WAN/LAN network test equipment, telecom BER testers and protocol analyzers for all telecom protocols and circuits.
- http://www.fetest.com/

Ameritec
- Communications test equipment solutions, bulk call generators, switch/network, simulation, signaling analyzers, transmission impairment measuring sets (TIMS), bit error rate testers, wireless cellular/PCS quality of service.
- http://www.ameritec.com/