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.
Açıklama
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.
Gördüğünüzde
In call center or queuing scenarios where the callee is busy but the system holds the call in a queue.
Nasıl Düzeltilir
Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them.
Açıklama
A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
Gördüğünüzde
In forked call scenarios when one of the forked branches is cancelled because another branch was answered.
Nasıl Düzeltilir
No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully.
Temel Farklar
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.
Hangisini Ne Zaman Kullanmalı
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.