Yo!
But were there really that many Adrians running around back then?
The 
says `Oi!’
Spaniards use
Dime or digame:
Literally:
Tell me or talk to me!
familiar is Dime and formal is digame
In Korean the greeting is Annyong haseyo which literally means, “Are you at peace?”
In Korean, ‘good-bye’ is either “Go in Peace” or “Stay in Peace” depending on the person speaking.
Another common greeting around meal time is “Have you eaten?” and no doubt originated from the time Korea was dirt poor and having a meal wasn’t a given.
I learned yesterday that ‘hello’ was coined to be a class-neutral greeting specifically for use on the phone. In the 1890s it was customary to use different forms of address depending on the class of the person you were addressing. When speaking to someone on the phone in 1889 it was not possible to judge one’s class in relation to the person on the other side of the line. So hello was coined
Source:Teaching Company, History of the English Language, Seth Lerer, Stanford University
http://www.teach12.com/ttc/assets/coursedescriptions/800.asp
Probably the rudest greeting on the phone belongs to the French: “Qui est à l’appareil?”
“Who’s on the phone?”
In Holland, Mr. Smith would answer the phone by “met Smith” (with Smith).
In Mexico, they answer the phone with “Bueno!”
Actually, the specific spelling of “hello” is from 1883. It was so common by 1889, that Mark Twain, writing in Conn. Yankee etc says “The humblest hello-girl…could teach…manners; to the highest duchess in Arthur’s land.” Hard to believe that it was coined for the reason given in that source above.
I may get pummelled for quoting from Tiny Tune Adventures, but:
Yo! Hadrian! 
Ack! Tiny TOON Adventures, of course…
At school we were taught that in German one should answer the phone “hier <name>”, which is basically equivalent to “<name> here.”
Personally, when answering the phone I just pick it up and wait for the other person to speak.
Alrite Geezer, thats from my town 
In Canada, we often answer the phone by howling like a wolf.
So, how did people answer the phone in Shakespeare’s time?
–CoffeeGuy?
lol coffee that made me chuckle
O’ Ye on thou Telethphone, whoeth art thou?
From samclem:
This quote from Mark Twain on ‘Hello girls’ was also in the tape I was listening to. Hello girls were the central operators who connected parties on the phone. Also known as ‘Central’.
Hello.
Hello.
Hello.
What a wonderful word.
Hello.
10 PRINT “HELLO”
20 GOTO 10