说明： 本标准描述了PHS短消息中心（SMSC）和外部短消息实体（ESME）之间的通信协议。本协议简称CNPP（China Netcom Short Message Peer to Peer Protocol）。 (description of the standard PHS Short Message Center (SMSC) and external short messaging entities (ESME) between the communication protocol. The agreement referred to Behave (China Netcom Short Message Peer-to-P eer Protocol).)
