GSM
Videos
The Global System for Mobile Communications is a family of standards to describe the protocols for second-generation digital cellular networks, as used by mobile devices such as mobile phones and mobi
Thomas Haug (first GSM president) and Philippe Dupuis (second GSM president) during a GSM meeting in Belgium, April 1992
Bosch CarTel T, an early GSM 900 cellular telephone. It is a rebranded variant of the Motorola International 1000.
Prototype GSM phones
GSM logo icon shown on the face of a Siemens GSM mobile phone from 1996
CdmaOne
Videos
cdmaOne, most often simply referred to as CDMA, is a 2G digital cellular technology. It was the commercial name for Interim Standard 95, a technology that was developed by Qualcomm and later adopted a
GSM
…became the global standard for mobile cellular communications, with over 2 billion GSM subscribers globally in 2006, far above its competing standard, CDMA. Its share reached over 90% market share by the mid-2010s, and operating in over 219 countries and territories. The specifications and maintenance of…
Samsung cdmaOne mobile phone disassembled