关于SIP的RFC3261的纯汉语版式的,好不容易才找到的,以前还没有见过汉语的,只有英语的!-on SIP RFC3261, the pure Chinese format, hard to find. he has not seen before in Chinese, English only!

一个RFC3261的中文版本，关于SIP协议的，说明很详细，英文不好的省好多事呢-a RFC3261 the Chinese version of SIP, describing in great detail, English is not good to do many of the provinces