摘要
文章以传统电话经由Internet传输的话音通信为例,阐述了IP电话的基本原理,给出了相关协议,并指出存在的问题。
By taking two regular phones through the Internet to carry out voice communication as an exam- ple, the paper introduces the prima- ry principles of the Internet Phone (IP) and its correlated protocols, and ends up with some existing technical problems with IP.
