NAT traversing system and method for meeting television

Abstract

The invention discloses an NAT crossing system of a conference TV, which comprises a communication control module and a plurality of conference terminals, wherein at least one of a plurality of conference terminals is located in an inner network, a plurality of conference terminals are connected with internet through a Router and an IP address obtaining unit, and the communication control module is connected with a plurality of conference terminals mutually through the internet. The NAT crossing system also comprises a gatekeeper which is connected with the internet, wherein the gatekeeper comprises an IP address analytical element which is used to analyze an outer network IP address corresponding to a registration request signal according to the registration request signal which is sent by the conference terminals in the inner network to the gate keeper. The invention also discloses an NAT crossing method of the conference TV. The system and the method can conveniently realize NAT crossing between the inner network and the outer network under the condition that the cost is not increased, and the system and the method are widely applied in various enterprise TV conferences.

Description

technical field [0001] The invention relates to the field of electronic communication, in particular to a NAT traversal system and method of a video conference. Background technique [0002] At present, the mainstream conference TV systems on the market are all implemented based on the H.323 protocol, and the IP address is used as the communication identifier in the design of the protocol. ) and cannot access each other, the meeting will not be held normally. Nowadays, more and more enterprises and institutions need to use video conferencing system to hold multi-point conferences between different cities. A new high-speed broadband technology, which uses an existing pair of telephone copper wires to provide users with uplink and downlink asymmetric transmission rates (bandwidth)) dial-up Internet access, build an internal LAN through routers, video conferencing The terminal is located in the local area network (with a fixed intranet IP address), so it is necessary to solve...

AI Technical Summary

Problems solved by technology

Because this mode needs to add a proxy server, the conference terminal in the intranet needs to support the H.460 protocol, or configure a proxy client in addition, the requirements for the system are relatively high, and the cost is relatively high

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