The name hello suggests the graham bells girl friend .one can forget graham bell who invented the phone but never his girl friends name.
The phone was invented by GRAHAM BELL.and the name of his son was HELLO.so,this is the reason that we say HELLO initially on phone......
err its poli ete to say it you don't star a phone call
me:ring ring ring
guy:bout the money
dats stupid it
me:ring ring ring
guy:hell-o
me:hi
guy:bout money dope