SIP 300 Multiple Choices vs 408 Request Timeout
SIP 300 (Multiple Choices) is a 3xx Redirection response, while 408 (Request Timeout) is a 4xx Client Failure response. 300 indicates that the address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint. In contrast, 408 means that the server could not produce a response within a suitable time. The client may repeat the request without modifications at any later time.
설명
The address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint.
이 코드를 보게 되는 경우
When a user has multiple registered devices or contact addresses and the server cannot determine which one to use.
해결 방법
Select one of the provided Contact addresses and resend the request to that specific URI.
설명
The server could not produce a response within a suitable time. The client may repeat the request without modifications at any later time.
이 코드를 보게 되는 경우
When the callee does not respond within the configured timeout (e.g., phone rings but is never answered, or the endpoint is unreachable).
해결 방법
Check if the callee's device is powered on and registered. Verify network connectivity. Consider adjusting the server's transaction timeout value.
주요 차이점
300 is a 3xx Redirection response, while 408 is a 4xx Client Failure response.
SIP 300: The address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint.
SIP 408: The server could not produce a response within a suitable time. The client may repeat the request without modifications at any later time.
You encounter 300 when when a user has multiple registered devices or contact addresses and the server cannot determine which one to use.
You encounter 408 when when the callee does not respond within the configured timeout (e.g., phone rings but is never answered, or the endpoint is unreachable).
언제 어떤 것을 사용할지
For 300 (Multiple Choices): Select one of the provided Contact addresses and resend the request to that specific URI. For 408 (Request Timeout): Check if the callee's device is powered on and registered. Verify network connectivity. Consider adjusting the server's transaction timeout value.