SIP 202 Accepted vs 413 Request Entity Too Large
SIP 202 (Accepted) is a 2xx Success response, while 413 (Request Entity Too Large) 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, 413 means that the server is refusing to process the request because the message body is larger than the server is willing to accept.
描述
The request has been accepted for processing but the processing has not been completed. Used primarily for REFER requests.
何时出现
After sending a REFER request for call transfer. The transfer target acknowledges receipt but hasn't completed the transfer yet.
如何修复
Wait for a NOTIFY to learn the outcome of the referred action. If no NOTIFY arrives, check subscription state and network connectivity.
描述
The server is refusing to process the request because the message body is larger than the server is willing to accept.
何时出现
When sending a SIP message with a body (SDP, XML, etc.) that exceeds the server's size limit.
如何修复
Reduce the size of the message body. For SDP, minimize codec offers or remove unnecessary attributes.
主要区别
202 is a 2xx Success response, while 413 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 413: The server is refusing to process the request because the message body is larger than the server is willing to accept.
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 413 when when sending a SIP message with a body (SDP, XML, etc.) that exceeds the server's size limit.
何时使用哪个
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 413 (Request Entity Too Large): Reduce the size of the message body. For SDP, minimize codec offers or remove unnecessary attributes.