International Voip Service Provider.
We offer our service to call shops, resellers and other VOIP service providers. We are the leader''s in low cost, high quality International Calls.Using our cheap calling solution''s you can make voip calls from PC, Device, Phone or Mobile and callshop solutions and calling cards.
Advanced Voice Order Processing System (AVOP) is a wholly owned subsidiary of Nettel Holdings, Inc. By joining AVOP Direct, carriers and service providers will be able to avoid the time and expense of negotiating and managing one-time agreements with othe
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