‘’’IDEN’’’
‘’’Integrated Digital Enhanced Network (iDEN)’’’is a mobile telecommunications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular telephone. It was called the first mobile social network by many technology industry analysts.
‘’’Countries which have operating iDEN networks include Canada, Argentina, Colombia, Peru, Mexico, Brazil, Jordan, Israel, Singapore, Saudi Arabia, El Salvador, China, India and Guatemala.’’’
https:// en.wikipedia.org/wiki/IDEN