3.1.5.1 ReadyToPair
When the client receives a ReadyToPair message (section 2.2.3.2) in the WAITING_FOR_SERVER_READY state, the client MUST initiate Bluetooth pairing with the server (as specified by the Server Address) using the numeric comparison method. The client MUST restart the ClientGuardTimer (section 3.1.2) and transition to the WAITING_FOR_PAIRING state.
When the client receives the ReadyToPair message in any other state, the client MUST initiate a disconnect of the control channel, stop the ClientGuardTimer, and transition to the FATAL_ERROR state.