Glossary

Glossary

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2G

Second generation wireless service, also known as Personal Communications Services (PCS). It refers to digital voice cellphone systems deployed in the 1990s. 2G delivers both voice and data transmissions, using circuit-switched technology where each call requires its own cell channel. The primal focus is on voice communications. 2G technology standards include Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), and (Global System for Mobile Communication (GSM). It also offers auxiliary services such as data, fax and SMS.

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