[Hilo] What’s the meaning of “URC”?


Answer: URC means Unsolicited Result Code.
URC is the message that is sent from the module to TE. It’s not the result of the AT command.
For example, when there’s an incoming call, you’ll see the message “RING”. It is a URC.
For another example, if you run the command “AT”, you’ll see the result “OK”. It is not a URC.