sentences:  Viable, fully digital switches emerged in the 1970s, with early systems, such as the French Alcatel E10 and Canadian Nortel DMS series going into production during that decade.Other widely adopted systems became available in the early 1980s.These included Ericsson AXE 10, which became the world's most popular switching platform, the Western Electric 5ESS used through the US and in many other countries, the German designed Siemens ESWD, the ITT System 12 (later rebranded Alcatel S12) and NEC NEAX all of which were widely used around the world.