| Ixia Provides test tools, development and testing services for call centers, communication networks, and network devices. |
| 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. |
| JTC_Sales,_Inc_ Utility equipment supplier for reel and wind up trailers,Fiber figure 8er and mud duck mudsucker |
| KSI_Corporation Manufactures timing boards for use in telecommunications, government and test and measurement applications. |
| KTL_Worldwide Independent organization for the testing and certification of telecom, IT and electrical products. Laboratories and accreditations worldwide. |
| L-3_Communications_Celerity_Systems Manufacturer of test and measurement equipment for cable modems, cellular phones, digital video, LANs, and two-way radio equipment. |
| The_Larry_McGee_Company Manufactures industrial grade communication and control equipment. |
| Lemco_Tool_Corporation Manufacturer of tools for construction and maintenance of fiber optic and coaxial cable systems. Features detailed product drawings and tool tips. |
| Linkbit Anytest product, E1/T1 portable tester, PRI analyzer and other testing units. |
| LP_Technologies Providing engineering, marketing and sales of RF products, primarily in the electronic and software product market place. |
| MarQuest_Limited Provides equipment and services for analysis and testing in digital telephony (PCM) transmission and signalling systems. |
| Megatel_Industries_Corp_ Provider of digital data communication and telecommunication equipment. |
| Metro_Tel_Corp_ Manufacturer of telecommunications test equipment. Products include subscriber loop, Linemans test sets and cable pipe location equipment. |
| MI_Technologies A leading supplier of microwave instrumentation for testing antennas, radomes, radar cross section analysis, components, EMI/EMC and automotive applications. |
| Microtronix_Systems Specializing in the production of telephone testing equipment. |
| Mike_Sandman Supply hard to find problem solving tools, test equipment, telephone repair parts and training videos. |
| 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] |
| MSS_Power_Systems Providers of application tools to the telecommunications and power contractors. |
| NetHawk_Oyj Provides mobile network equipment vendors and operators with instruments, systems and related services for accelerating development and improving quality. |
| Net-O2_Technologies Provider of communications software, network testing and network security software solutions and services from India. |
| Noise_Com Manufactures devices, test instruments and systems for evaluating noise susceptibility of wire-based and wireless communications components and networks |
| NS_Electronics_Service,_Inc_ Sales and service of communications service monitors and equipment. |
| NTI Manufacturer of test instruments for the professional audio industry, the broadcast market and the loudspeaker industry. |
| Nutmeg_Utility Development and distribution of tools, products and services to the telephone, construction and utility industries. |
| OEL Supplier of telephone installation tools. |
| Omnicor Supplier of IP traffic generators for gigabit ethernet switch, router and network performance testing. |
| Pan-Tech Representative and distributor for test equipment, transmission equipment and supplies for fiber optic, copper and wireless communications systems |
| PDS_Test Company provide a wide range of communications test, development, demonstration and connectivity solutions. |
| The_Phone_Repair_Company Company sells new and refurbished test equipment, new hand tools and provides training in electronic equipment and test set repairs. |
| PriLink Telecommunications management tools with specific emphasis on North American ISDN-PRI services. |
| Radcom Provider of analysis and monitoring solutions for VoIP, 3G Cellular and Datacom |
| RAN_Systems_Home_Page Provides call test monitor and master clocks to the 911 Emergency community. Includes product details and industry news events list. |
| Rochelle_Communications Global supplier of Caller ID and telephone test equipment. |
| Rohde_&_Schwarz Manufacturer of spectrum analyzers for measurements in the frequency-domain, time-domain and modulation-domain (vector signal analysis). |
| RTI_Products Manufacturer of electronic snow sensing and anti-icing systems for the telecommunications industry. |
| Sadelco_R&D 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. |
| Sage_Instruments Portable and hand held telephony test equipment. |
| San_Mateo_Electronic_Supply Distributors of Computer, networking cables and accessories. Test equipment for telco, network systems. |
| Schultz_Communications,_Inc Supply a range of telecommunications equipment and tools . Products include test and measurement instruments, wire and cable and speciality tools. |
| Shenick_Network_Systems_Limited Offers information about test suites for network infrastucture. |