IPMA Technologies Hong Kong
- Internet VoIP and Video Conferencing Service Provider
- Voice and Video Conferencing
- Cisco Systems
- Telco Solutions Billing System
SIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.
General Telephone & Telegraph Ltd
General Telephone & Telegraph is a Telecommunications Solutions Provider. We work with companies to make sure that they have the best telecommunications systems that they need to operate their business effectively for both their employees and their custom
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