When did the landline telephone and VoIP appear? - landline telephone
Can someone tell me, look for the first time, the fixed line and VoIP?
Saturday, January 23, 2010
Landline Telephone When Did The Landline Telephone And VoIP Appear?
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1875 Telephone invented
1877 First long-distance lines installed
1915 Coast to Coast first long-distance call
1947 plan designed for cell phones
1951 First direct dial telephone conversation transcontenental
1973 First Cell Phone Call
1979 First commercial mobile service (Tokyo)
1984 First mobile phones on the market for Motorola DynaTAC 8000X
1991 GSM 2G mobile phone technology into force
1995 The first Internet telephony software released for commercial
1997 softswitch first
1999 SIP creates
1999 Launch 3G Cellular
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