assembled at the destination. This enables large numbers of communications signals to be directed or routed simultaneously and more efficiently than in circuit networking. Our data networking solutions consist of products and services designed to enable the transportation of data information across a network. Our security solutions consist of products and services designed to ensure that information can be securely transported across a network and to prevent unauthorized users from being able to disrupt the network.
Wireless Networks includes network access and core networking solutions for voice and data communications that span second and third generation wireless technologies and most major global standards for mobile networks. Enterprise Networks includes circuit and packet voice solutions, and data networking and security solutions used by our enterprise customers. Wireline Networks includes circuit and packet voice solutions, and data networking and security solutions used by our service provider customers. Optical Networks includes metropolitan, regional and
For more information about our networking solutions, please refer to our segment descriptions below.
Wireless Networks
Products
Wireless networking, also known as mobility networking, refers to communications networks that enable
Our existing wireless solutions span second and third generation wireless technologies and most major global digital standards for mobile networks. The majority of wireless communications networks existing today are still based on second generation, or 2G, wireless technologies, which consist of circuit switching technology with modest data transmission capabilities. However, third generation, or 3G, networks have been launched in several regions. 3G wireless technologies consist of packet networking technology with
We support all of the following primary international standards for wireless communications networks:
•Time Division Multiple Access, or TDMA, is a 2G wireless standard supported mainly in the United States, Canada and the Caribbean and Latin America region, or CALA.
•Code Division Multiple Access, or CDMA, is a 2G wireless standard, also known as
•Global System for Mobile communications, or GSM, is a 2G wireless standard supported globally. GSM networks are evolving to carry data, as well as voice, with the introduction of General Packet Radio Standard, or GPRS. GPRS is viewed as a “2.5G” technology that provides faster and therefore increased data transmission capabilities. Enhanced Data Rates for Global Evolution, or EDGE, is a further evolution of GSM systems to support higher data speeds. In addition to higher data speeds, EDGE provides increased voice capacity for existing GSM operators. An additional variant of this standard, called
•Universal Mobile Telecommunications System, or UMTS, is now a commercial standard for 3G networks based on Wideband CDMA, or WCDMA, technology. UMTS combines
We also offer a range of related professional services to our customers.
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