Discoveries and inventions: Phone.

by Twas TGraham Tin TAlexander Ttelephone T1873 TThe Tinvented

telephone Tmany Tdifferent Tof Tinvention Twas Tby Tthe TThe Tcompanies Tdone. T

mobile Tcreated Tfirst Tin Twas TMartin T1973 TMotorola Tphone TThe Tby Tfrom Tresearcher TCooper Ta. T

to Twas TMitchel Tmade Tfirst Tphonecall TJohn TThe TF

80's Tthe Tfirst Tmobile Twere Tcommercial Tsold TThe Tuntil Tphones. T T

first Tincorporated Tmobile Tsmart Tphone TThe Tby Tdevices Twith TIBM Tdeveloped Twas

by TCommunicator TSimon Tcompany Twas Tcommercially Tintroduced TThe Tproduced Tfirst Tthe TPersonal TSmartphone. T