SIP 182 Queued vs 485 Ambiguous
SIP 182 (Queued) is a 1xx Provisional response, while 485 (Ambiguous) 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, 485 means that the Request-URI was ambiguous. The response body may contain a list of possible unambiguous addresses.
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 Request-URI was ambiguous. The response body may contain a list of possible unambiguous addresses.
Когда вы это видите
When the destination address matches multiple users and the server cannot determine which one is intended.
Как исправить
Use a more specific SIP URI. Check the response body for a list of possible matches and select the correct one.
Ключевые различия
182 is a 1xx Provisional response, while 485 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 485: The Request-URI was ambiguous. The response body may contain a list of possible unambiguous addresses.
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 485 when when the destination address matches multiple users and the server cannot determine which one is intended.
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 485 (Ambiguous): Use a more specific SIP URI. Check the response body for a list of possible matches and select the correct one.