SIP 200 OK vs 513 Message Too Large
SIP 200 (OK) is a 2xx Success response, while 513 (Message Too Large) is a 5xx Server 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, 513 means that the server was unable to process the request since the entire SIP message (not just the body) exceeded the size limit.
Descripción
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
Cuándo lo verás
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
Cómo solucionarlo
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
Descripción
The server was unable to process the request since the entire SIP message (not just the body) exceeded the size limit.
Cuándo lo verás
When the total SIP message (headers + body) is too large. Different from 413 which refers only to the body.
Cómo solucionarlo
Reduce the message size by removing unnecessary headers or reducing the SDP size. Consider using UDP-compatible message sizes (< 1300 bytes).
Diferencias clave
200 is a 2xx Success response, while 513 is a 5xx Server 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 513: The server was unable to process the request since the entire SIP message (not just the body) exceeded the size limit.
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 513 when when the total SIP message (headers + body) is too large. Different from 413 which refers only to the body.
Cuándo usar cada uno
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 513 (Message Too Large): Reduce the message size by removing unnecessary headers or reducing the SDP size. Consider using UDP-compatible message sizes (< 1300 bytes).