SIP 202 Accepted vs 414 Request-URI Too Long
SIP 202 (Accepted) is a 2xx Success response, while 414 (Request-URI Too Long) is a 4xx Client Failure response. 202 indicates that the request has been accepted for processing but the processing has not been completed. Used primarily for REFER requests. In contrast, 414 means that the server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.
説明
The request has been accepted for processing but the processing has not been completed. Used primarily for REFER requests.
このコードが表示される場合
After sending a REFER request for call transfer. The transfer target acknowledges receipt but hasn't completed the transfer yet.
解決方法
Wait for a NOTIFY to learn the outcome of the referred action. If no NOTIFY arrives, check subscription state and network connectivity.
説明
The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.
このコードが表示される場合
When the SIP URI in the request line is excessively long, which may happen with URI parameters or long phone numbers.
解決方法
Shorten the Request-URI. Remove unnecessary parameters or use a shorter alias for the destination.
主な違い
202 is a 2xx Success response, while 414 is a 4xx Client Failure response.
SIP 202: The request has been accepted for processing but the processing has not been completed. Used primarily for REFER requests.
SIP 414: The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.
You encounter 202 when after sending a REFER request for call transfer. The transfer target acknowledges receipt but hasn't completed the transfer yet.
You encounter 414 when when the SIP URI in the request line is excessively long, which may happen with URI parameters or long phone numbers.
どちらをいつ使うか
For 202 (Accepted): Wait for a NOTIFY to learn the outcome of the referred action. If no NOTIFY arrives, check subscription state and network connectivity. For 414 (Request-URI Too Long): Shorten the Request-URI. Remove unnecessary parameters or use a shorter alias for the destination.