SIP 199 Early Dialog Terminated vs 405 Method Not Allowed
SIP 199 (Early Dialog Terminated) is a 1xx Provisional response, while 405 (Method Not Allowed) 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, 405 means that the method specified in the Request-Line is not allowed for the address identified by the Request-URI.
الوصف
A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
متى تراه
In forked call scenarios when one of the forked branches is cancelled because another branch was answered.
كيفية الإصلاح
No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully.
الوصف
The method specified in the Request-Line is not allowed for the address identified by the Request-URI.
متى تراه
When sending a SIP method (e.g., MESSAGE, PUBLISH) that the server does not support for the target URI.
كيفية الإصلاح
Check the Allow header in the response to see which methods are supported. Use a supported method instead.
الفروق الرئيسية
199 is a 1xx Provisional response, while 405 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 405: The method specified in the Request-Line is not allowed for the address identified by the Request-URI.
You encounter 199 when in forked call scenarios when one of the forked branches is cancelled because another branch was answered.
You encounter 405 when when sending a SIP method (e.g., MESSAGE, PUBLISH) that the server does not support for the target URI.
متى تستخدم أيًا منهما
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 405 (Method Not Allowed): Check the Allow header in the response to see which methods are supported. Use a supported method instead.