英语翻译针对SIP(SessionInitiationProtocol)穿越NAT设备的问题,分析了现有的NAT穿越方法ICE(InteractiveConnectivityEstablishment),并对ICE方法作了进一步优化.新方案保持了原ICE方式不改动NAT设备、能穿越

Question

英语翻译
针对SIP(Session Initiation Protocol)穿越NAT设备的问题,分析了现有的NAT穿越方法ICE(Interactive Connectivity Establishment),并对ICE方法作了进一步优化.新方案保持了原ICE方式不改动NAT设备、能穿越任何类型NAT的优点,缩短了穿越对称型NAT的时间.
请翻译上面一段话

Answer 1

Regarding the issue of SIP traversing NAT device, the curent traversing method, ICE was analyzed an further optimized the ICE method. The new scenario kept the advantage that the ICE method can traverse any type of NAT without modifying the NAT device and furthermore, shortened the time of traversing the symmetric NAT.