Ex on Mobile phonesVersión en línea Ex on Mobile phones por Liliya Zaripova 1 Mobile phones, or cellular phones, need a network of towers or antennas to transmit calls. a True b False 2 In a cellular system, a city is divided into smaller sections, where the base stations usually occupy a central position. a True b False 3 Roaming is the ability to use another telephone company. a True b False 4 1G phones had a slower transmission speed than 2G. a True b False 5 2G phones introduced analogue technology. a True b False 6 GSM started to be used in the 80s. a True b False 7 Smart phones can be used for other purposes, e.g. as a personal digital assistant. a True b False 8 UMTS, the standard used in 3G phones, has made multimedia transmissions common nowadays. a True b False
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