In this thesis , we discuss the structure of the h . 323 stack , and analyze its key implementation technologies in detail , such as asn . l encoding and partition of the functions of primary protocol entity 本文討論了h . 323協(xié)議棧的結構組成,并對實現協(xié)議棧所涉及的一些技術,如asn . 1編碼、主要協(xié)議實體功能界定劃分等問題,進行了較為細致的分析。