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Duo Business Communications Llc.
The Voice Box Corp. sells value added telecom services in the United States. Please visit its site for information on pre paid phone cards, voicemail, and faxmail services. The primary sponsor of the IP telephony network in Duo Business Communications Llc.'s system, voiceandfax.com maintains a billing and connection agreements among parties to provide next generation services in developing nations with the use of VoIP. This next generation service provides to our customers the possibility to expand theirs geographical coverage without the expenses of a physical infrastructure. Este servicio de próxima generación permite a nuestros clientes expandir su alcanze geográfico sin los altos costos asociados a una infraestructura física. |