 How to call Hanoi in Vietnam from South Korea:
Exit Code ** - Exit code when making an international call from South Korea
84 - Vietnamese country code for inbound calls
4 - Hanoi city code
Exit Code ** + 84 + 4 + Local Number - International dialing code format
** Exit Code - South Korea has multiple telephone carriers: ()
 World time zone information:
The time in South Korea is now 01:59:33 AM (01:59:33 AM)
The time in Hanoi Vietnam is now 23:59:33 PM (11:59:33 PM)
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