Http 600 Error Code
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SIP is based around request/response transactions, in a similar manner to the Hypertext Transfer Protocol (HTTP). Each transaction consists of a SIP request (which will be one of several request methods), and
Http Status Code
at least one response.[1]:p11 SIP requests and responses may be generated by any http status codes cheat sheet SIP user agent; user agents are divided into clients (UACs), which initiate requests, and servers (UASes), which respond to http code 403 them.[1]:§8 A single user agent may act as both UAC and UAS for different transactions:[1]:p26 for example, a SIP phone is a user agent that will be a UAC when making a call,
Http Code 302
and a UAS when receiving one. Additionally, some devices will act as both UAC and UAS for a single transaction; these are called Back-to-Back User Agents (B2BUAs).[1]:p20 SIP responses specify a three-digit integer response code, which is one of a number of defined codes that detail the status of the request. These codes are grouped according to their first digit as "provisional", "success", "redirection", "client error",
Http Response Example
"server error" or "global failure" codes, corresponding to a first digit of 1–6; these are expressed as, for example, "1xx" for provisional responses with a code of 100–199.[1]:§7.2 The SIP response codes are an extension to the HTTP response codes, although not all HTTP response codes are valid in SIP.[1]:§21 SIP responses also specify a "reason phrase", and a default reason phrase is defined with each response code.[1]:§7.2 These reason phrases can be varied, however, such as to provide additional information[1]:§21.4.18 or to provide the text in a different language.[1]:§20.3 SIP, including the response codes and corresponding reason phrases, is defined in Internet Engineering Task Force (IETF) Requests for Comments (RFCs), namely RFC 3261.[2] That RFC includes provisions for later RFCs to update the specification.[1]:§8.1.1.9 Specific parts of the SIP protocol, including response codes and their default reason phrases, are registered with the Internet Assigned Numbers Authority (IANA).[1]:§27[3] This list details all the SIP response codes defined in IETF RFCs and registered with the IANA as of 18 April 2013[update]. It also includes SIP response codes defined in obsolete SIP RFCs (specifically, RFC 2543), which are therefore not registered with the IANA; these are
response. 10.1 Informational 1xx This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. There are no required headers for http 422 this class of status code. Since HTTP/1.0 did not define any 1xx status codes,
Http 504
servers MUST NOT send a 1xx response to an HTTP/1.0 client except under experimental conditions. A client MUST be prepared to http 502 accept one or more 1xx status responses prior to a regular response, even if the client does not expect a 100 (Continue) status message. Unexpected 1xx status responses MAY be ignored by a user agent. https://en.wikipedia.org/wiki/List_of_SIP_response_codes Proxies MUST forward 1xx responses, unless the connection between the proxy and its client has been closed, or unless the proxy itself requested the generation of the 1xx response. (For example, if a proxy adds a "Expect: 100-continue" field when it forwards a request, then it need not forward the corresponding 100 (Continue) response(s).) 10.1.1 100 Continue The client SHOULD continue with its request. This interim response is used https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html to inform the client that the initial part of the request has been received and has not yet been rejected by the server. The client SHOULD continue by sending the remainder of the request or, if the request has already been completed, ignore this response. The server MUST send a final response after the request has been completed. See section 8.2.3 for detailed discussion of the use and handling of this status code. 10.1.2 101 Switching Protocols The server understands and is willing to comply with the client's request, via the Upgrade message header field (section 14.42), for a change in the application protocol being used on this connection. The server will switch protocols to those defined by the response's Upgrade header field immediately after the empty line which terminates the 101 response. The protocol SHOULD be switched only when it is advantageous to do so. For example, switching to a newer version of HTTP is advantageous over older versions, and switching to a real-time, synchronous protocol might be advantageous when delivering resources that use such features. 10.2 Successful 2xx This class of status code indicates that the client's request was successfully received, understood, and accepted. 10.2.1 200 OK The request has succeeded. The information returned wit
code via httpstatuses.com/code or browse the list below. @ https://httpstatuses.com/ Share on Twitter★ Star on GitHub⊕ Add to Pinboard 1×× Informational 100 Continue 101 Switching Protocols 102 Processing 2×× Success 200 OK http://developer.att.com/application-resource-optimizer/docs/best-practices/http-400-and-500-error-codes 201 Created 202 Accepted 203 Non-authoritative Information 204 No Content 205 Reset Content 206 Partial Content 207 Multi-Status 208 Already Reported 226 http status IM Used 3×× Redirection 300 Multiple Choices 301 Moved Permanently 302 Found 303 See Other 304 Not Modified 305 Use Proxy 307 Temporary Redirect 308 Permanent Redirect 4×× Client Error 400 Bad Request 401 Unauthorized 402 Payment Required 403 Forbidden 404 Not Found 405 Method http status code Not Allowed 406 Not Acceptable 407 Proxy Authentication Required 408 Request Timeout 409 Conflict 410 Gone 411 Length Required 412 Precondition Failed 413 Payload Too Large 414 Request-URI Too Long 415 Unsupported Media Type 416 Requested Range Not Satisfiable 417 Expectation Failed 418 I'm a teapot 421 Misdirected Request 422 Unprocessable Entity 423 Locked 424 Failed Dependency 426 Upgrade Required 428 Precondition Required 429 Too Many Requests 431 Request Header Fields Too Large 444 Connection Closed Without Response 451 Unavailable For Legal Reasons 499 Client Closed Request 5×× Server Error 500 Internal Server Error 501 Not Implemented 502 Bad Gateway 503 Service Unavailable 504 Gateway Timeout 505 HTTP Version Not Supported 506 Variant Also Negotiates 507 Insufficient Storage 508 Loop Detected 510 Not Extended 511 Network Authentication Required 599 Network Connect Timeout Error
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