Private network access system based on SIP soft phone and method thereof
A soft terminal and private network technology, applied in the field of private network traversal systems, can solve the problems of increasing packet delay and packet loss, and achieve the effect of improving efficiency and ensuring real-time performance.
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[0039] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.
[0040] The basic idea of the present invention is that because the network environment is extremely complex, simply using a traversal method cannot make SIP signaling and media streams perfectly and effectively traversal. If the combination of STUN protocol and SIP signaling is used alone, SIP signaling and media streams can only penetrate asymmetrical networks. When encountering a symmetric network, a normal connection cannot be established; if the TURN protocol and SIP signaling are used alone In combination, although any type of NAT network can be penetrated, SIP signaling and media streams need to be transferred through the TURN server, which greatly increases the delay of the message and the possibility of packet loss, thus reducing the real-time performance of audio and video. Therefore, in view o...
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