IDT is a leading global provider of voice traffic, carrying over 30 billion international minutes last year.
IDT Carrier Service offers voice termination through a choice of service levels — Platinum, Gold and IDT Instant, providing you with an optimal choice between quality and price over any given route.
Houyuan Technology (HK) Limited ( http://www.houyuanhk.com ) is a professional voip manufacturer in China.
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