SIP 199 Early Dialog Terminated vs 413 Request Entity Too Large
SIP 199 (Early Dialog Terminated) is a 1xx Provisional response, while 413 (Request Entity Too Large) is a 4xx Client Failure response. 199 indicates that a UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs. 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.
Descripción
A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
Cuándo lo verás
In forked call scenarios when one of the forked branches is cancelled because another branch was answered.
Cómo solucionarlo
No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully.
Descripción
The server is refusing to process the request because the message body is larger than the server is willing to accept.
Cuándo lo verás
When sending a SIP message with a body (SDP, XML, etc.) that exceeds the server's size limit.
Cómo solucionarlo
Reduce the size of the message body. For SDP, minimize codec offers or remove unnecessary attributes.
Diferencias clave
199 is a 1xx Provisional response, while 413 is a 4xx Client Failure response.
SIP 199: A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
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 199 when in forked call scenarios when one of the forked branches is cancelled because another branch was answered.
You encounter 413 when when sending a SIP message with a body (SDP, XML, etc.) that exceeds the server's size limit.
Cuándo usar cada uno
For 199 (Early Dialog Terminated): No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully. For 413 (Request Entity Too Large): Reduce the size of the message body. For SDP, minimize codec offers or remove unnecessary attributes.