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.
The great Tang Dynasty is one of the most splendid period in Chinese history.Datang Telecom Technology and Industry Group,with headquarter located in Beijing(capital of china),services nation wide,and is ambitious for whole world at the same time.It is de
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