HF Company may not necessarily be sending you signals, but it sure hopes you receive them. For businesses, the firm designs and markets signal processing equipment for high- speed network access. For individual customers, it makes equipment for terrestrial and satellite TV reception (cables, plugs, connectors, amplifiers, antennas); digital peripheries to interconnect TV, HiFi, and IT equipment (cables, connectors, interface boxes, wireless boxes); and security products (alarms, intercoms, automatic door devices). Nearly two-thirds of its annual sales come from France. Chairman and managing director Yves Bouget formed HF company in 1988 and controls a nearly 20% stake.

Shaw Broadcast Services (SBS), a division of Shaw Communications Inc., is one of North America's largest full service commercial signal distribution networks. SBS delivers more television and radio signals to North American cable companies than any other single-source satellite signal supplier.

Not all calls serviced by CloseCall America are of the near miss variety. The company is a telecommunications reseller offering voice and Internet services to primarily to residential customers in the Northeast and Midwest through agreements AT&T and Verizon. Its services include traditional local and long-distance telephone, DSL Internet access, wireless phone, and Voice over Internet Protocol (VoIP) computer telephony. CloseCall operates primarily in Delaware, Indiana, Maryland, New Jersey, Ohio, and Wisconsin. A subsidiary of MobilePro, the company agreed to be acquired by Birch Communications in 2010.

Ezenia! Inc. designs, develops, produces, markets, and sells real-time group collaboration and communication solutions for corporate and governmental networks, and eBusiness. It offers InfoWorkSpace, a suite of collaboration applications, which enable voice communication, secure messaging, white boarding, virtual workspaces, and JPEG-based video across a range of networks, including local area networks and wide area networks. The company also provides technical support and services to its resellers and direct customers. It serves commercial, governmental, consumer, and institutional users in the United States and internationally. Ezenia! Inc. company was formerly known as VideoServer, Inc. Ezenia! Inc. was founded in 1991 and is headquartered in Nashua, New Hampshire.

Aegis customers might consider themselves in good company. The company's primary product is AegisGuard, a leather case that protects against radiation and dangerous by-products of cordless and wireless telephones. "Aegis" was the word for a goatskin shield carried by the heroes of Greek mythology. Aegis also makes radiation shields for telephone headsets and a variety of other electronic equipment. The company additionally makes a line of laser products that include laser pointers, sound-activated laser light displays, and layout tools for construction and engineering applications. Aegis, which sells products online and through distributors, also provides custom manufacturing services to OEMs.

Bluesocket was established in 1999. Bluesocket provides software and hardware that allows secure access to wireless LANs in airports, hotels, offices, and schools. Its BlueSecure products -- which are used with laptops, PDAs, and certain types of wireless phones -- incorporate signal encryption technology for security, protecting users from computer viruses and worms, spam e-mail, and hacker attacks on networks. The company's BlueView Management System software allows network administrators to configure, monitor, and manage multiple WLANs. Customers include Harvard, Honeywell, Parker Hannifin, and Toyota.

Far EasTone Telecommunications knows wireless communications no longer means keeping an ear to the ground. It offers traditional wireless phone services accessed using a SIM card -- a plastic card embedded with a chip that is inserted into a handset. It offers both post-paid (E-Tone) and pre- paid (IF Card) services to customers in Taiwan. Far EasTone, which also provides Internet services through FETnet.net, is combining its the two to offer mobile content including entertainment, financial, messaging, and information services.

KVH Industries, Inc. develops, manufactures, and markets mobile communication products for the marine, land mobile, and in-flight markets, as well as navigation, guidance, and stabilization products for the defense and commercial markets primarily in North America and Europe. Its mobile communications products and airtime services include TracVision and TracPhone systems, and mini-VSAT broadband airtime, which enable customers to receive live digital television, telephone, and Internet services in their marine vessels, recreational vehicles, automobiles, and commercial airplanes through satellite services. The company’s guidance and stabilization products consist of precision fiber optic gyro based systems that help stabilize platforms, such as gun turrets, remote weapon stations, and radar units, as well as provides guidance for munitions; and tactical navigation systems that offer access to navigation and pointing information in a range of military vehicles, including tactical trucks and light armored vehicles. In addition, KVH Industries leases its products directly to end users. Its guidance and stabilization products are used in various commercial applications, including precision mapping, autonomous vehicles, train location control and track geometry measurement systems, industrial robotics, and optical stabilization. The company sells its mobile communications products through an international network of retailers, distributors, and dealers; and guidance and stabilization products directly to the United States and allied governments, and government contractors, as well as through an international network of authorized independent sales representatives. KVH Industries, Inc. was founded in 1978 and is headquartered in Middletown, Rhode Island.

RF Monolithics, Inc. designs, develops, manufactures, and markets wireless solutions and wireless components for various applications in the industrial, medical, automotive, consumer, and telecommunications markets in the United States and internationally. Its wireless solutions product line comprises RF module products, including proprietary, custom, and standard-based radio modules; and gateway and network bridge products to connect different network types. The company’s wireless solutions product line also consists of Virtual Wire and RFIC short-range radio products, including proprietary hybrid transmitter, receiver, and transceiver modules; and various RFICs to complement the Virtual Wire product family comprising transmitters, receivers, and transceivers. RF Monolithics’ wireless components product line consists of filters for satellite radio, global positioning systems, and telecommunications base stations and repeaters, as well as includes RF filters and duplexers. Its wireless components product line also comprises frequency control products for analog and digital applications; crystal based products, such as multiple series of surface mound devices, including resonators, oscillators, filters, temperature compensated oscillators, and voltage controlled temperature compensated oscillators; low-power components, such as resonators used in low-power wireless transmitter and receiver applications. RF Monolithics, Inc. markets its products through manufacturers’ representatives and distributors in the United States; and markets its products internationally through manufacturers’ representatives acting as distributors, as well as through direct sales. RF Monolithics, Inc. was founded in 1979 and is headquartered in Dallas, Texas.

Elisa is in a race for the Finnish. A leading communications services provider in Finland, Elisa company provides consumers, businesses, and government agencies with fixed and mobile voice, broadband Internet, and cable television services. It also provides IT consulting and integration services and resells mobile phones, computers, and peripherals. In addition to its operations in Finland, the company provides a full range of telecom services in Estonia. Elisa serves additional international customers through its partnerships with Vodafone and Telenor.

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