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Manufacturer of spectrum analyzers for measurements in the frequency-domain, time-domain and modulation-domain (vector signal analysis).

The A8619 Protocol Test System offers Analysis, Simulation, Emulation of SS7, V5, ISDN, INAP, GSM, GPRS, CDMA and VoIP protocols.

Manufactures fault location and measurment equipment for wire and cable manufacturers.

Manufactures wide range of instrumentation and systems for communications equipment development and maintenance. Areas of application include optical transport, data communications, cable and wireless.

OSP cable fault location test equipment.

Manufacturer of the modem line tap used by POS, ATM and the telecommunications industry to troubleshoot analog data communications on telephone lines.

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.

Design, develop, manufacture and market signal reconnaissance equipment to collect and process telecommunications signals.

Arca Technologies provide a complete range of VoIP, ISDN, VoDSL, xDSL, V5.1, V5.2 and PSTN test and simulation equipment

Manufacturer of RF power, microwave, audio, modulation and impedance test instrumentation and sensors.

Supplies digital and analog panel meters, temperature and process controllers, and hand-held test and measurement equipment.

Manufacturer of cable fault locating and testing equipment for industrial and telecommunications applications

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).

Manufactures optical test equipment.

Manufacturer of telecommunications test equipment including xDSL cable qualifiers, test sets for ISDN, T3/T1, E1 and TDR.

Hardy protocol, transmission analyzer, interface converters, Tl/El DSU/CSU digital access unit SDSL series, BOB and IAN cable tester, communication products series.

Sadelco R&D designs, manufactures, and sells communications test equipment. Sadelco R&D products are used in the testing of cable TV and computer systems.

Delsat is an Argentinian company which manufactures metering and monitoring equipment for telecommunications.

Supplier of telecommunication test equipment for the local loop including Records Purification (RPS).

Manufacturer of hand-held telecommunications test equipment specializing in T1, DS3, and STS-1 Sonet testing. Includes ISDN, SS7, GR303, frame relay.

Cable television electronic and equipment repair service. Repair for converter boxes, rf line gear, and headend equipment.

Endace manufactures network monitoring interface products that can test and analyze telecommunications and network equipment.

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.

Network test equipment manufacturer. Develops WAN/LAN network test equipment, telecom BER testers and protocol analyzers for all telecom protocols and circuits.

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.

Single and dual laptop analyzers provide comprehensive and versatile T1 and E1 testing.

Develops telecommunication network performance monitoring and hands-free communicationis solutions. (Copenhagen Stock Exchange: ISIN code DK001027263-2).

Sells network monitoring equipment to telecommunications companies. Includes software screenshots, product details, and FAQ.

Manufacturer of low cost PDA/PC driven POTS, TIMS, DS1, DS3, and ISDN hand-held test equipment.

Designs and develops telecommunications test solutions, specialising in automated PSTN & xDSL test systems.

Provides fully automated compliance, pre-compliance, development and production testing solution for analog PSTN, acoustic, xDSL, VoIP, T1, E1 and ISDN PRI interfaces.

Communications manufacturers representative and reseller firm offering radio, wire voice, data and video telecommunications networking and test equipment.

Test and measurement equipment, monitoring systems and customised solutions for GSM networks in sub-Saharan Africa.

Design, manufacture and market a wide range of customized communications products.

Network performance testing, protocol, debug analysis tools.

Designs and manufactures industry test equipment for broadband and legacy telecom applications.

Provides test tools, development and testing services for call centers, communication networks, and network devices.

Designs and manufactures RF components including attenuators, RF switches and specialized test systems for telecommunications, OEM test equipment, medical, automotive, and defense markets.

Utility equipment supplier for reel and wind up trailers,Fiber figure 8er and mud duck mudsucker

Manufactures timing boards for use in telecommunications, government and test and measurement applications.

Independent organization for the testing and certification of telecom, IT and electrical products. Laboratories and accreditations worldwide.

Manufacturer of test and measurement equipment for cable modems, cellular phones, digital video, LANs, and two-way radio equipment.

Providing engineering, marketing and sales of RF products, primarily in the electronic and software product market place.

Manufacturer of tools for construction and maintenance of fiber optic and coaxial cable systems. Features detailed product drawings and tool tips.

Anytest product, E1/T1 portable tester, PRI analyzer and other testing units.

A leading supplier of microwave instrumentation for testing antennas, radomes, radar cross section analysis, components, EMI/EMC and automotive applications.

Providers of application tools to the telecommunications and power contractors.

Provides equipment and services for analysis and testing in digital telephony (PCM) transmission and signalling systems.

Provider of digital data communication and telecommunication equipment.

Manufacturer of telecommunications test equipment. Products include subscriber loop, Linemans test sets and cable pipe location equipment.

Specializing in the production of telephone testing equipment.

Supply hard to find problem solving tools, test equipment, telephone repair parts and training videos.

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]

Sales and service of communications service monitors and equipment.

Manufacturer of test instruments for the professional audio industry, the broadcast market and the loudspeaker industry.

Provider of communications software, network testing and network security software solutions and services from India.

Provides mobile network equipment vendors and operators with instruments, systems and related services for accelerating development and improving quality.

Manufactures devices, test instruments and systems for evaluating noise susceptibility of wire-based and wireless communications components and networks

Development and distribution of tools, products and services to the telephone, construction and utility industries.

Supplier of telephone installation tools.

Develops, markets and supports automated microwave test and measurement systems.

Supplier of IP traffic generators for gigabit ethernet switch, router and network performance testing.

Company provide a wide range of communications test, development, demonstration and connectivity solutions.

Representative and distributor for test equipment, transmission equipment and supplies for fiber optic, copper and wireless communications systems

Telecommunications management tools with specific emphasis on North American ISDN-PRI services.

Provides call test monitor and master clocks to the 911 Emergency community. Includes product details and industry news events list.

Manufacturer of electronic snow sensing and anti-icing systems for the telecommunications industry.

Provider of analysis and monitoring solutions for VoIP, 3G Cellular and Datacom

Global supplier of Caller ID and telephone test equipment.

Manufacturer and supplier of bit error rate test systems, broadband amplifiers, digital modules and passive microwave components and related equipment.

Portable and hand held telephony test equipment.

Distributors of Computer, networking cables and accessories. Test equipment for telco, network systems.

Supply a range of telecommunications equipment and tools . Products include test and measurement instruments, wire and cable and speciality tools.

Offers information about test suites for network infrastucture.

Supplier of software monitoring and control solutions for the HFC broadband, satellite, broadcast and telecom industry.

Multipath Fading Simulator for GSM850, GPRS, 3G, CDMA2000

High technology company focusing on turn-key solutions for the implementation and validation of signalling systems.

Spirent Communications provides test and service management solutions for the communications industry.

Offering Summitek intermodulation and BaseStAR interference analyzers and colocation equipment.

Develops and manufactures telecommunications test and measurement solutions.

On-line resource for cable pressurization information and technology.

Designs and manufactures intelligent monitoring and control systems, remote and addressable sensors, computer controlled air dryer systems, and pressure and flow transducers.

Local Loop Simulators and Noise Generators for ADSL, ADSL2, ADSL2++, G.SHDSL, VDSL Testing.

Supplier of innovative buried electronic markers used to mark cables, to provide easy cable locating.

A manufacturer and distributor of unique and hard to find telecommunicaions tools from the turn of the century through today.

Serial alarm monitoring of telecommunications equipment: protocol specifications, test procedures, software tools that facilitate installation and troubleshooting.

Designs, develops and markets (WAN) Wide Area Network access products and communications test equipment.

Provider of telephone line-powered dialers and other telecommunications testing equipment.

Providing repair, calibration, refurbishment and sales of telecommunication test equipment.

Supplier of revenue assurance and switch testing equipment and systems.

Manufactures industrial grade communication and control equipment.

Company sells new and refurbished test equipment, new hand tools and provides training in electronic equipment and test set repairs.

Suppliers of telephone and data communications test and monitoring equipment

Manufacturer of RF shielded rooms, EMC chambers, EM shielded and test chambers and enclosures.

Industry's first non-intrusive analyzer for vendor-independent testing of ADSL and ADSL2 networks.

Manufactures and integrates systems using VME, VME64x, VXI, CompactPCI and PXI for the telecommunications, military test and measurement and medical industries.

Protocol test and measurement equipment, monitoring, simulating, load generators and emulator equipment for communication interfaces.

Supplier of datacom, telcom, air conditioning and power quality test equipment.

Designs, develops and sells ISDN, SS7, V5 and PSTN protocol and traffic analysers for transmissions systems.

Supplies measurement and test equipment for telecommunications networks.

Test equipment from several manufacturers for data communications and telecommunications networks. Applications include DSL, T-carrier, fiber optics, signalling and IP networks.