Citel is The VoIP Migration Company™. We develop the world''s most comprehensive portfolio of network-edge products enabling enterprises to realize the cost and productivity benefits of IP telephony.
With Citel''s Portico™ TVA™, existing PBX handsets connect directly to a Session Initiation Protocol (SIP) based on-premise IP PBX or Hosted IP telephony service provider. Citel can help you determine which type of deployment strategy - Hosted or premise-based - is best for you and the needs of your enterprise.
Alturaphone is an IP telephony service and technology provider. We offer personalized services for businesses, resellers and distributors. Alturaphone provides VoIP services such as VoIP wholesale with a prepaid platform, GSM to worldwide VoIP termination
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