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.
Established in 1998, Citrus Telecom remains privately owned and funded by the founder directors. Citrus has held full Annex 2 status since February 2001 and has operated its own multi-exchange BT interconnect since November 2002.With offices in London and
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