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.
Digital Voice is a business to business specialist VoIP provider (or managed business VoIP) for small to medium sized businesses.
Digital Voice has established strategic partnerships with both NTL and Mitel to deliver our clients a superior VoIP