SIP 182 Queued vs 416 Unsupported URI Scheme
SIP 182 (Queued) is a 1xx Provisional response, while 416 (Unsupported URI Scheme) 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, 416 means that the server cannot process the request because the URI scheme in the Request-URI is unknown to the server.
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
The server cannot process the request because the URI scheme in the Request-URI is unknown to the server.
Gördüğünüzde
When using a URI scheme (e.g., tel:, im:, pres:) that the receiving server does not support.
Nasıl Düzeltilir
Use a supported URI scheme. Most SIP servers support sip: and sips: schemes. Check server capabilities with OPTIONS.
Temel Farklar
182 is a 1xx Provisional response, while 416 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 416: The server cannot process the request because the URI scheme in the Request-URI is unknown to the server.
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 416 when when using a URI scheme (e.g., tel:, im:, pres:) that the receiving server does not support.
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 416 (Unsupported URI Scheme): Use a supported URI scheme. Most SIP servers support sip: and sips: schemes. Check server capabilities with OPTIONS.