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Telephony

Created by mgonzalez

Description

Telephony timeline

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Events

Antonio Meucci Alexander Graham Bell and Elias Gray First telephone exchange Self-winding telephone exchange Pulse dialing telephone First Motorola mobile phone Second generation that uses systems like GSM 2G. New services. EMS and MMS.Internet Internet development Nokia Symbian PDAs Mobile with wap browser Mobile with internal antenna First mobile with integrated camera 3G first iPhone S.O. Android 4G+5G 100,000 million devices connected to the Internet

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1st stage 2nd stage 3rd statge 4rth stage

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