SIP 182 Queued vs 199 Early Dialog Terminated
Both SIP 182 (Queued) and 199 (Early Dialog Terminated) belong to the 1xx Provisional category. 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. Meanwhile, 199 means that a UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
विवरण
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.
जब आप इसे देखें
In call center or queuing scenarios where the callee is busy but the system holds the call in a queue.
कैसे ठीक करें
Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them.
विवरण
A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
जब आप इसे देखें
In forked call scenarios when one of the forked branches is cancelled because another branch was answered.
कैसे ठीक करें
No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully.
मुख्य अंतर
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 199: A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
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 199 when in forked call scenarios when one of the forked branches is cancelled because another branch was answered.
कब किसका उपयोग करें
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 199 (Early Dialog Terminated): No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully.