SIP 300 Multiple Choices vs 500 Server Internal Error
SIP 300 (Multiple Choices) is a 3xx Redirection response, while 500 (Server Internal Error) is a 5xx Server 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, 500 means that the server encountered an unexpected condition that prevented it from fulfilling the request.
説明
The address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint.
このコードが表示される場合
When a user has multiple registered devices or contact addresses and the server cannot determine which one to use.
解決方法
Select one of the provided Contact addresses and resend the request to that specific URI.
説明
The server encountered an unexpected condition that prevented it from fulfilling the request.
このコードが表示される場合
When the SIP server has an internal error — database failure, unhandled exception, or resource exhaustion.
解決方法
Check server logs for the specific error. Common causes include database connectivity issues, configuration errors, or memory exhaustion.
主な違い
300 is a 3xx Redirection response, while 500 is a 5xx Server 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 500: The server encountered an unexpected condition that prevented it from fulfilling the request.
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 500 when when the SIP server has an internal error — database failure, unhandled exception, or resource exhaustion.
どちらをいつ使うか
For 300 (Multiple Choices): Select one of the provided Contact addresses and resend the request to that specific URI. For 500 (Server Internal Error): Check server logs for the specific error. Common causes include database connectivity issues, configuration errors, or memory exhaustion.