SIP 182 Queued vs 405 Method Not Allowed
SIP 182 (Queued) is a 1xx Provisional response, while 405 (Method Not Allowed) is a 4xx Client Failure response. 182 indicates that the called party is temporarily unavailable but the server has decided to queue the call rather than reject it. The call will be attempted when the callee becomes available. In contrast, 405 means that the method specified in the Request-Line is not allowed for the address identified by the Request-URI.
Descripción
The called party is temporarily unavailable but the server has decided to queue the call rather than reject it. The call will be attempted when the callee becomes available.
Cuándo lo verás
In call center or queuing scenarios where the callee is busy but the system holds the call in a queue.
Cómo solucionarlo
Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them.
Descripción
The method specified in the Request-Line is not allowed for the address identified by the Request-URI.
Cuándo lo verás
When sending a SIP method (e.g., MESSAGE, PUBLISH) that the server does not support for the target URI.
Cómo solucionarlo
Check the Allow header in the response to see which methods are supported. Use a supported method instead.
Diferencias clave
182 is a 1xx Provisional response, while 405 is a 4xx Client Failure response.
SIP 182: The called party is temporarily unavailable but the server has decided to queue the call rather than reject it. The call will be attempted when the callee becomes available.
SIP 405: The method specified in the Request-Line is not allowed for the address identified by the Request-URI.
You encounter 182 when in call center or queuing scenarios where the callee is busy but the system holds the call in a queue.
You encounter 405 when when sending a SIP method (e.g., MESSAGE, PUBLISH) that the server does not support for the target URI.
Cuándo usar cada uno
For 182 (Queued): Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them. For 405 (Method Not Allowed): Check the Allow header in the response to see which methods are supported. Use a supported method instead.