ibasis.com: Ibasis - Global Leader In International Voice Solutions
iBasis is a leading international voice carrier and wholesale provider of voice, mobile data, and prepaid calling products and services.
fcc.gov: Voice-Over-Internet Protocol
Federal Communications Commission
tekdigitel.com: Tek Digitel Soho Voip Communication Solutions
TEK DigiTel's voice over IP products provide the perfect solution for SOHO based business
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