Africa just isn't a big enough continent to contain Naspers. The media company operates primarily in South Africa and sub-Saharan Africa, but also does business in Asia, Europe, and North and South America. Naspers' Electronic Media division operates primarily through MIH Holdings, with pay- TV and Internet businesses in Africa, China, Cyprus, Greece, and Thailand; this division generates the bulk of Naspers' sales. The Print Media division's Media24 unit publishes magazines and newspapers and offers printing in Africa, with subsidiary Via Afrika publishing books.

Source Photonics company manufactures two primary optical components, passive optical network (PON) subsystems and transceivers, and sells them both directly and through distributors to telecommunications equipment vendors, including Alcatel-Lucent, Motorola, Tellabs, UTStarcom, and ZTE Corporation. These customers supply such telecommunications service providers as Verizon with the fiber-optic technology needed to increase computer network bandwidth and speed to homes and businesses. Source Photonics makes most of its sales in China and the US.

Filtronic knows wireless inside out.Filtronic company designs and manufactures an array of radio frequency (RF), micro- and millimeter wave, and subsystem components. Its lineup serves to process radio signals, the heart of wireless communications equipment. Point-to-point (PTP) radio products include transceivers, filers, outdoor and indoor units, and radio backhaul PTP links for fixed and mobile telecommunication networks. Filtronic supplies such customers as Alcatel-Lucent, Motorola, and Nokia. Other Filtronic products include components for military radar, sensing, and communications equipment; these components serve prime contractors for defense equipment, notably Thales and Selex.

Transatel targets travelers. The company offers discounted international wireless phone services aimed at European frequent travelers. As a mobile virtual network operator (MVNO), it resells the service under its own brand but delivers it through other carriers' networks. The company's proprietary smart chip turns all international calls -- incoming and outgoing -- into domestic calls. Since its start in 2000, Transatel has expanded beyond its French roots to operations in Belgium, Luxembourg, the Netherlands, and the UK. Investors in the company include a French government agency that invests in young businesses and the venture capital firm Pyramid Technology Ventures.

NeuStar shines as a key provider of registry and clearinghouse services used in telecommunications and Internet networks. NeuStar manages the registry of North American area codes and telephone numbers and the database used by telecom carriers (including Verizon, Sprint Nextel, and AT&T) and cable companies (Comcast and tw telecom) to route phone calls. The company also operates an Internet registry supporting domain addresses. NeuStar is a leading provider of operations support systems (OSS) clearinghouse services that provide ordering, service provisioning, billing, and customer service functions for telecom carriers and other companies. The company gets most of its revenues in North America.

TCI International finds loose lips before they sink the wrong ships. The company is a developer of broadband products for broadcasting, communications intelligence collection, specialized radio communications, and spectrum management. Its Broadcast and Communications Group provides high-power broadcasting antennas for a variety of military and civilian use. The TCI Signal Processing Group designs and manufactures spectrum monitoring equipment, direction finding, and signal collection products for military and intelligence uses, as well as for use by regulatory authorities. The company also provides engineering, installation, and integration services. TCI International is a subsidiary of SPX Corporation.

This Canadian call center is poised to answer the phone in both English and French. TigerTel provides multilingual call center and customer relationship management services from 12 locations across the country. The company's services include inbound and outbound services, Web response, and voice messaging. It performs customer acquisition and retention, emergency response, online sales and order entry, market research, lead capture, and management of customer support and comment lines. Clients have included Ceridian, RE/MAX, and Energy Source Canada. The company was acquired in 2009 by 7212747 Canada (also known as SwiftCo). The combined company retained the TigerTel name.

Swedcom may offer a smorgasbord of telecommunications products but Swedcom company is not Swedish. Originally an importer of Swedish telecommunications products, Swedcom Corporation now charges into the telecom marketplace armed with its own line of wireless equipment. Swedcom company designs and manufactures such products as base station antennas, multiplexers, channel banks, filters, and related items for cellular, PCS, and wireless broadband networks.Swedcom company also provides training services and technical support for its current products for a select number of discontinued antennas. Swedcom was founded in 1987.

Hector Communications may not operate in Garrison Keillor's Lake Wobegon, but it does serve up local phone service in about two dozen rural communities in Minnesota and nearby states (powdermilk biscuits are optional). The holding company operates through nine facilities-based rural local- exchange carriers (RLECs) located in Minnesota, North Dakota, and Wisconsin. These operating subsidiaries maintain about 30,000 local access lines and offer Internet access. Hector and Alliance also provide cable TV service. Hector is owned by a consortium made up of three Minnesota local- exchange carriers: Arvig Enterprises, Blue Earth Valley Communications, and New Ulm Telecom.

If you live in Russia, you likely do business with JSFC Sistema. The largest private-sector consumer services company in Russia, Sistema has holdings in telecommunications, electronics, finance, retail, and media companies. Its largest group, Sistema Telecom, is made up of more than 50 operators active in fixed and mobile telephony, Internet, and multimedia services; the unit includes wireless operator wireline carrier Comstar UTS and Mobile TeleSystems (MTS). Sistema's second-largest sector is Sitronics (telecom products and services). Chairman Vladimir Evtushenkov, one of the wealthiest men in Russia, owns a majority stake in Sistema.

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