无法立刻读取记忆文件回应信号.

Unable to load freeze file just received.

无人接听回应指的是在收到用户接通电话回应信号之前，对连接信号进行接通而未接听的信号（网络）的网络替换。

Abandonment refers to the network replacement of a connect signal with an on-hook signal (network) prior to receiving a CI (customer installation) answer signal.