This capability provides an up-to-date status to tell you if your system is up, and it provides some common metrics of the system at any given time. These metrics include
此功能提供最新的状态，告诉您系统是否已启动，并且在任何给定的时间内提供系统的一些常规标准。
FSK caller signal automatically refresh existing system date and time, DTMF telephone signal to the original system, the time and date Settings had no effect.
FSK来电信号自动刷新原有的系统日期时间，DTMF来电信号对原系统的时间，日期的设置无影响。
FSK caller signal automatically refresh existing system date and time, DTMF telephone signal to the original system, the time and date Settings had no effect.
FSK来电信号自动刷新原有的系统日期时间，DTMF来电信号对原系统的时间，日期的设置无影响。
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