SIP Redirection
Question
To which SIP response class do the SIP response codes 300 to 399 belong?
Answers
Explanations
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Redirectionfurther action needs to be taken in order to complete the request.
That is what this class implies.
The SIP (Session Initiation Protocol) is a signaling protocol used to initiate, modify, and terminate real-time sessions that involve video, voice, messaging, and other communications applications and services. SIP messages consist of a request message or a response message. The response messages are sent by a SIP server or client to respond to a received SIP request message. The response messages contain a three-digit numerical code that indicates the status of the request.
The SIP response codes from 300 to 399 are known as Redirection responses. These responses indicate that further action needs to be taken to complete the request, such as additional information being required or a different server being needed to complete the request.
Some of the commonly used SIP response codes that belong to the Redirection response class are:
300 Multiple Choices: This response indicates that the requested destination has multiple options for the user, and the user can choose one of them. The response contains a list of URI (Uniform Resource Identifier) that the user can choose from.
301 Moved Permanently: This response indicates that the requested destination has permanently moved to a new location, and the user should update their URI to the new location.
302 Moved Temporarily: This response indicates that the requested destination has temporarily moved to a new location, and the user should try the new URI provided in the response.
305 Use Proxy: This response indicates that the requested destination must be accessed through a proxy server, and the response contains the URI of the proxy server.
380 Alternative Service: This response indicates that the requested service is temporarily unavailable, but an alternative service is available, and the user can try the alternative service.
In summary, the SIP response codes from 300 to 399 belong to the Redirection response class, which indicates that further action needs to be taken to complete the request, such as additional information being required or a different server being needed to complete the request.
