RRC Establishment Cause DescriptionCause 0 Originating Conversational CallCause 1 Originating Streaming CallCause 2 Originating Interactive CallCause 3 Originating Background CallCause 4 Originating Subscribed traffic CallCause 5 Terminating Conversational CallCause 6 Terminating Streaming CallCause 7 Terminating Interactive CallCause 8 Terminating Background CallCause 9 Emergency CallCause 10 Inter-RAT Cell re-selectionCause 11 Inter-RAT Cell change orderCause 12 RegistrationCause 13 DetachCause 14 Originating High Priority SignalingCause 15 Originating Low Priority SignalingCause 16 Call re-establishmentCause 17 Terminating High Priority SignalingCause 18 Terminating Low Priority SignalingCause 19 Terminating cause unknown