ISD Call is one of the leading VoIP (Voice over Internet Protocol) Service Provider specialising in Internet Telephony Solutions for various businesses, Our vision is to emerge as a major VoIP Service Provider by integrating telephony system with the cont
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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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