[help] how to get the RSSI values from a bluetooth modem? (HC-05)

hello everyone
I am trying to use this bluetooth module for data sensor communication of electric car project in Gadjah Mada University - Indonesia.
But, I have some trouble to get the rssi value.

i’m trying the command “at+inq\n\r” (from datasheet)
but i only get OK and i can’t understand that,
can you help me to find where the mistake is?

Thank you…