Value,Description,Reference
0x01,Sending a URL,[RFC5457]
0x02,Data frame,[RFC5457]
0x03,Unassigned,
0x04,Beginning frame,[RFC5457]
0x05-0x07,Unassigned,
0x08,End frame,[RFC5457]
0x09-0x0F,Unassigned,
0x10,Load is complete,[RFC5457]
0x11,Peer does not support HTML,[RFC5457]
0x12,Link URL,[RFC5457]
0x13,Unlink URL,[RFC5457]
0x14,Reject Link URL,[RFC5457]
0x15-0x7F,Unassigned,