SIP 200 OK vs 413 Request Entity Too Large
SIP 200 (OK) is a 2xx Success response, while 413 (Request Entity Too Large) is a 4xx Client Failure response. 200 indicates that the request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully. 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.
Descrição
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
Quando você o vê
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
Como corrigir
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
Descrição
The server is refusing to process the request because the message body is larger than the server is willing to accept.
Quando você o vê
When sending a SIP message with a body (SDP, XML, etc.) that exceeds the server's size limit.
Como corrigir
Reduce the size of the message body. For SDP, minimize codec offers or remove unnecessary attributes.
Diferenças principais
200 is a 2xx Success response, while 413 is a 4xx Client Failure response.
SIP 200: The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
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 200 when when a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
You encounter 413 when when sending a SIP message with a body (SDP, XML, etc.) that exceeds the server's size limit.
Quando usar qual
For 200 (OK): No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions. For 413 (Request Entity Too Large): Reduce the size of the message body. For SDP, minimize codec offers or remove unnecessary attributes.