Vinculum Communications has been offering international long distance services to carriers around the world since 2001. Our success is built around Vinculum’s robust international network that has been developed through partnerships and relationships in more than 200 countries. We currently provide service to approximately 250 global long distance carrier customers, and partner with more than 300 service partners around the world.
SIP is the latest technology allowing voice call to be made over the internet. VoiceFlex uses SIP to provide low cost, ISDN replacement lines that provides the best possible call quality, inexpensively, sometimes at no cost, with the flexibility that come
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