We are all human and therefore we all need to rest. Foreign countries attract people, because "the grass is always greener at neighbors’ yard." But while abroad, we also want to keep in touch with family and friends in order to tell any news or just share experiences.
IDC projected over 9 billion minutes of voice traffic to travel over worldwide packet networks in 2000, exceeding 135 billion minutes in 2004. Service revenue is projected at 1.6 billion in 2000 and 18.7 billion in 2004.