This is a list of the supported RTSP status codes and their meanings

100 – Continue
200 – OK
201 – Created
250 – Low on Storage Space
300 – Multiple Choices
301 – Moved Permanently
302 – Moved Temporarily
303 – See Other
304 – Not Modified
305 – Use Proxy
400 – Bad Request
401 – Unauthorized
402 – Payment Required
403 – Forbidden
404 – Not Found
405 – Method Not Allowed
406 – Not Acceptable
407 – Proxy Authentication Required
408 – Request Time-out
410 – Gone
411 – Length Required
412 – Precondition Failed
413 – Request Entity Too Large
414 – Request-URI Too Large
415 – Unsupported Media Type
451 – Parameter Not Understood
452 – Conference Not Found
453 – Not Enough Bandwidth
454 – Session Not Found
455 – Method Not Valid in This State
456 – Header Field Not Valid for Resource
457 – Invalid Range
458 – Parameter Is Read-Only
459 – Aggregate operation not allowed
460 – Only aggregate operation allowed
461 – Unsupported transport
462 – Destination unreachable
463 – Key management Failure
500 – Internal Server Error
501 – Not Implemented
502 – Bad Gateway
503 – Service Unavailable
504 – Gateway Time-out
505 – RTSP Version not supported
551 – Option not supported