SIP 302 Moved Temporarily vs 505 Version Not Supported
SIP 302 (Moved Temporarily) is a 3xx Redirection response, while 505 (Version Not Supported) is a 5xx Server 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, 505 means that the server does not support the SIP protocol version that was used in the request. Currently only SIP/2.0 is standardized.
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 server does not support the SIP protocol version that was used in the request. Currently only SIP/2.0 is standardized.
이 코드를 보게 되는 경우
Extremely rare. Would occur if a client sends a request with a SIP version other than 2.0.
해결 방법
Ensure your UA uses SIP/2.0 in the request line. This is the only standardized version.
주요 차이점
302 is a 3xx Redirection response, while 505 is a 5xx Server 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 505: The server does not support the SIP protocol version that was used in the request. Currently only SIP/2.0 is standardized.
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 505 when extremely rare. Would occur if a client sends a request with a SIP version other than 2.0.
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 505 (Version Not Supported): Ensure your UA uses SIP/2.0 in the request line. This is the only standardized version.