本标准的目的是建立一种通用的信令格式，任何数字通信或接收机制造商都可以采用这种格式。标准通信格式将为按照标准设计的设备提供全面的兼容性，而不考虑制造商。本通信标准设计为开放式。区块格式允许消息的帐号和数据部分具有可变长度。通用消息格式允许以多个块的形式发送理论上无限长的消息（但是，必须考虑实际限制）。 开放式设计将允许在标准规定范围内进行几乎无限的扩展。

The purpose of this standard is to establish a common signaling format, which can be adopted by any manufacturer of digital communicators or receivers. The standard communication format will provide an across-the-board compatibility of equipment desitgned to the Standard regardless of manufacturer.This communication standard is designed to be open ended. The block format allows for a variable length on the account number and data sections of the message. The generalized message format allows for a theoretically unlimited length message in the form of multiple blocks (however, practical limits must be considered). The open ended design will allow for almost unlimited expansion within the provisions of the standard.