A cloud service-based voip system, device and method
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZTE CORP
- Publication Date
- 2011-12-28
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Abstract
Description
technical field
[0001] The present invention relates to the technical field of communications, and more specifically, to a VoIP system, device and method based on cloud services. Background technique
[0002] The full name of VoIP is Voice over Internet Protocol, which digitizes the analog voice signal and transmits it in real time on the IP network in the form of data packets. Its basic principle is to compress the voice data encoding through the voice compression algorithm, and then decompress the data packets at the opposite end, and finally restore the original voice signal.
[0003] The protocols adopted by VoIP mainly include H.323, SIP and other protocols. Among them, the SIP (Session Initiation Protocol, Session Initiation Protocol) protocol proposed by the IETF (Internet Engineering Task Force, Internet Engineering Task Force) has been widely used due to its good compatibility and scalability. SIP is an application layer signaling control protocol. A session used...