VOIP Service Providers Residential
BusinessCom Gibraltar
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Gibraltar / Gibraltar / Portland House, Glacis Road, Suite 2
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SIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.
Houyuan Technology (HK) Limited
Houyuan Technology (HK) Limited ( http://www.houyuanhk.com ) is a professional voip manufacturer in China.
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