SIP 301 Moved Permanently vs 416 Unsupported URI Scheme
SIP 301 (Moved Permanently) is a 3xx Redirection response, while 416 (Unsupported URI Scheme) is a 4xx Client Failure response. 301 indicates that the user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header. In contrast, 416 means that the server cannot process the request because the URI scheme in the Request-URI is unknown to the server.
説明
The user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header.
このコードが表示される場合
When a user has permanently changed their SIP address. All future calls should be directed to the new URI.
解決方法
Update your address book or routing tables to use the new Contact URI provided in the response.
説明
The server cannot process the request because the URI scheme in the Request-URI is unknown to the server.
このコードが表示される場合
When using a URI scheme (e.g., tel:, im:, pres:) that the receiving server does not support.
解決方法
Use a supported URI scheme. Most SIP servers support sip: and sips: schemes. Check server capabilities with OPTIONS.
主な違い
301 is a 3xx Redirection response, while 416 is a 4xx Client Failure response.
SIP 301: The user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header.
SIP 416: The server cannot process the request because the URI scheme in the Request-URI is unknown to the server.
You encounter 301 when when a user has permanently changed their SIP address. All future calls should be directed to the new URI.
You encounter 416 when when using a URI scheme (e.g., tel:, im:, pres:) that the receiving server does not support.
どちらをいつ使うか
For 301 (Moved Permanently): Update your address book or routing tables to use the new Contact URI provided in the response. For 416 (Unsupported URI Scheme): Use a supported URI scheme. Most SIP servers support sip: and sips: schemes. Check server capabilities with OPTIONS.