SIP 182 Queued vs 403 Forbidden
SIP 182 (Queued) is a 1xx Provisional response, while 403 (Forbidden) 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, 403 means that the server understood the request but is refusing to fulfill it. Authorization will not help. The request should not be repeated.
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 understood the request but is refusing to fulfill it. Authorization will not help. The request should not be repeated.
Когда вы это видите
When the server policy denies the request regardless of credentials. Common for blocked numbers, restricted routes, or ACL violations.
Как исправить
Check server ACLs and routing policies. Verify the caller is permitted to make this type of call. Contact the server administrator if the block is unexpected.
Ключевые различия
182 is a 1xx Provisional response, while 403 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 403: The server understood the request but is refusing to fulfill it. Authorization will not help. The request should not be repeated.
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 403 when when the server policy denies the request regardless of credentials. Common for blocked numbers, restricted routes, or ACL violations.
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 403 (Forbidden): Check server ACLs and routing policies. Verify the caller is permitted to make this type of call. Contact the server administrator if the block is unexpected.