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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Founded in 2003 in San Jose, CA, Essence Technology Inc. provides technology, service and solutions to help our customers to be competitive in the IP based communication industry.
With our core technology in hardware acceleration, we provide prod