error code for standard RTSP message – The first line of the reply message indicates
"100"; Continue (All range)
"110"; Connect Timeout
"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
"350"; Going away
"351"; Load balancing
"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"; Reserved
"453"; Not enough Bandwidth
"454"; Session not Found
"455"; Method not Valid
"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
"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