3.5.5.5 Error Responses
The server MUST send back a 400 Bad Request response if the request is missing its XML body.
The server MUST send back a 400 Bad Request response if the XML body is not a valid http://schemas.microsoft.com/2006/09/sip/container-management document.
The server SHOULD send back a 403 Forbidden response if the From-URI and the To-URI are not identical<37>.
The server MUST send back a 409 Conflict response if the version check fails. The format of this message is specified in section 2.2.2.10.4.
The server MUST send back a 400 Bad Request response if there are multiple container elements for the same ID.
The server MUST send back a 413 Request Entity Too Large response if the request failed because it caused the container quota to be exceeded.