SIP 182 Queued vs 500 Server Internal Error
SIP 182 (Queued) is a 1xx Provisional response, while 500 (Server Internal Error) is a 5xx Server 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, 500 means that the server encountered an unexpected condition that prevented it from fulfilling the request.
Описание
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.
Когда вы это видите
In call center or queuing scenarios where the callee is busy but the system holds the call in a queue.
Как исправить
Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them.
Описание
The server encountered an unexpected condition that prevented it from fulfilling the request.
Когда вы это видите
When the SIP server has an internal error — database failure, unhandled exception, or resource exhaustion.
Как исправить
Check server logs for the specific error. Common causes include database connectivity issues, configuration errors, or memory exhaustion.
Ключевые различия
182 is a 1xx Provisional response, while 500 is a 5xx Server 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 500: The server encountered an unexpected condition that prevented it from fulfilling the request.
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 500 when when the SIP server has an internal error — database failure, unhandled exception, or resource exhaustion.
Когда что использовать
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 500 (Server Internal Error): Check server logs for the specific error. Common causes include database connectivity issues, configuration errors, or memory exhaustion.