Telephony
“GRAHAM BELL TELEPHONE” Telephony “Alexander Graham Bell” invented the telephone in 1875, the first conversation on telephone was made on 10th March 1876. He spoke the words “Mr. Watson, …
Telephony Read More“GRAHAM BELL TELEPHONE” Telephony “Alexander Graham Bell” invented the telephone in 1875, the first conversation on telephone was made on 10th March 1876. He spoke the words “Mr. Watson, …
Telephony Read More