It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
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, while leveraging existing telecom and datacom investm
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