2.2.6 449 Retry With Status Code

The 449 Retry With status code indicates that the request cannot be satisfied because insufficient information was provided by the client.

The new extension status code is defined as follows (using the Augmented Backus-Naur Form (ABNF) syntax, as specified in [RFC2616] section 2.1).

  
 Status-code = "449"
 Reason-phrase = "Reply With"