You are here: Reference Guide > Audio Expert System Overview > Audio Expert System Event Types > Event Type: Bluetooth Protocol
Event Type: Bluetooth Protocol
| Protocol | Severity | Description |
| A2DP | Warning | AVDTP signal response received for unknown command. |
| A2DP | Warning | Unrecognized capability type |
| A2DP | Error | eSCO parameters requested. |
| A2DP | Error | Profile TX PDUs larger than available bandwidth for active A2DP Streaming interval. |
| A2DP | Error | Bitpool value does not match configured bitpool range. |
| A2DP | Error | Attempt to suspend inactive stream. |
| A2DP | Error | Configuration attempt using unsupported CODEC. |
| A2DP | Error | Incorrect AVTDP command length. |
| A2DP | Error | Unknown command Stream End Point Identifier (SEID). |
| A2DP | Error | A2DP stream configuration attempt using invalid CODEC parameters. |
| A2DP | Error | A2DP stream configuration request sent during active stream. |
| A2DP | Error | Audio data length does not match length header. |
| A2DP | Error | Incorrect A2DP SBC frame fragmentation. |
| A2DP | Error | A2DP SBC frame header contents does not match stream configuration. |
| A2DP | Error | Attempt to configure A2DP stream with unsupported configuration. |
| A2DP | Error | Reported A2DP stream capabilities do not contain mandatory features. |
| A2DP | Error | A2DP streaming L2CAP channel not disconnected after ABORT operation. |
| A2DP | Error | Fragmented AVDTP packet not terminated before sending next packet. |
| A2DP | Error | Invalid AVDTP transaction ID. |
| A2DP | Error | Missing AVDTP command response. |
| A2DP | Error | Unrecognized A2DP content protection type. |
| A2DP | Error | Attempt to configure delay reporting during incorrect stream state. |
| A2DP | Error | Attempt to open A2DP stream that has not been configured. |
| A2DP | Error | Attempt to close A2DP stream that is not active. |
| A2DP | Error | A2DP streaming channel created before configuration completed. |
| A2DP | Error | Configuration command contains invalid length parameter. |
| A2DP | Error | Configuration command contains invalid media transport format. |
| A2DP | Error | SBC CRC Error. |
| A2DP | Error | SBC invalid channel mode. |
| A2DP | Error | SBC invalid header. |
| A2DP | Error | Invalid AVDTP configuration parameter. |
| A2DP | Error | Invalid AVDTP stream state |
