In the connection ending between end users, the data block total number (DBTN) is defined as optional parameter to judge if end user data is completely received, and delays a signal sending period to send ACK to complete ending connection.

• 在端用户之间释放连接方式中,作者定义了数据块总数(DBTN)作为可选参数,判断端用户数据是否完全收到,进而使用延缓一个信令发送周期发送应答消息或者通知消息的技术完成释放连接。