SIP 182 Queued vs 406 Not Acceptable
SIP 182 (Queued) is a 1xx Provisional response, while 406 (Not Acceptable) 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, 406 means that the resource identified by the request is only capable of generating responses with content characteristics not acceptable according to the Accept header.
الوصف
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.
متى تراه
In call center or queuing scenarios where the callee is busy but the system holds the call in a queue.
كيفية الإصلاح
Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them.
الوصف
The resource identified by the request is only capable of generating responses with content characteristics not acceptable according to the Accept header.
متى تراه
When content negotiation fails — the server cannot produce a response matching the Accept header fields in the request.
كيفية الإصلاح
Review the Accept headers in your request and broaden the acceptable content types.
الفروق الرئيسية
182 is a 1xx Provisional response, while 406 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 406: The resource identified by the request is only capable of generating responses with content characteristics not acceptable according to the Accept header.
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 406 when when content negotiation fails — the server cannot produce a response matching the Accept header fields in the request.
متى تستخدم أيًا منهما
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 406 (Not Acceptable): Review the Accept headers in your request and broaden the acceptable content types.