SIP 302 Moved Temporarily vs 404 Not Found
SIP 302 (Moved Temporarily) is a 3xx Redirection response, while 404 (Not Found) is a 4xx Client Failure response. 302 indicates that the callee has temporarily moved to a different address. The client should retry the request at the Contact address but continue using the original URI for future requests. In contrast, 404 means that the user specified in the Request-URI does not exist at the domain. The server has authoritative information that the user does not exist.
설명
The callee has temporarily moved to a different address. The client should retry the request at the Contact address but continue using the original URI for future requests.
이 코드를 보게 되는 경우
When a user is temporarily reachable at a different location, such as when traveling or using a different device.
해결 방법
Redirect the current call to the Contact URI provided, but keep the original URI for future requests.
설명
The user specified in the Request-URI does not exist at the domain. The server has authoritative information that the user does not exist.
이 코드를 보게 되는 경우
When calling a number or SIP address that does not exist on the server. Different from 480 (user exists but is temporarily unavailable).
해결 방법
Verify the SIP URI or phone number. Check if the user is registered on the correct domain. Ensure the domain is correct.
주요 차이점
302 is a 3xx Redirection response, while 404 is a 4xx Client Failure response.
SIP 302: The callee has temporarily moved to a different address. The client should retry the request at the Contact address but continue using the original URI for future requests.
SIP 404: The user specified in the Request-URI does not exist at the domain. The server has authoritative information that the user does not exist.
You encounter 302 when when a user is temporarily reachable at a different location, such as when traveling or using a different device.
You encounter 404 when when calling a number or SIP address that does not exist on the server. Different from 480 (user exists but is temporarily unavailable).
언제 어떤 것을 사용할지
For 302 (Moved Temporarily): Redirect the current call to the Contact URI provided, but keep the original URI for future requests. For 404 (Not Found): Verify the SIP URI or phone number. Check if the user is registered on the correct domain. Ensure the domain is correct.