大多数市话局模拟器可以模拟常规的挂机、摘机、拨号、应、通话等动作。

Most central office simulators can simulate normal on-hook, off-hook, dialing, answering, speaking, etc.

youdao

大多数市话局模拟器可以模拟常规的挂机、摘机、拨号、应、通话等动作。

Most central office simulators can simulate normal on-hook, off-hook, dialing, answering, speaking, etc.

youdao