SIP 181 Call Is Being Forwarded vs 430 Flow Failed
SIP 181 (Call Is Being Forwarded) is a 1xx Provisional response, while 430 (Flow Failed) is a 4xx Client Failure response. 181 indicates that a proxy server may send this to indicate that the call is being forwarded to a different set of destinations. In contrast, 430 means that the specific flow to a user agent has failed but other flows may succeed. Used with SIP outbound (RFC 5626).
विवरण
A proxy server may send this to indicate that the call is being forwarded to a different set of destinations.
जब आप इसे देखें
When the callee has call forwarding enabled and the request is being redirected to another number or device.
कैसे ठीक करें
No action needed. The call is being redirected. If forwarding is unintended, the callee should update their forwarding settings.
विवरण
The specific flow to a user agent has failed but other flows may succeed. Used with SIP outbound (RFC 5626).
जब आप इसे देखें
When using SIP outbound connections and the specific TCP/TLS connection (flow) to the UA has been lost.
कैसे ठीक करें
The proxy should attempt delivery via other registered flows. The UA should re-register to establish a new flow.
मुख्य अंतर
181 is a 1xx Provisional response, while 430 is a 4xx Client Failure response.
SIP 181: A proxy server may send this to indicate that the call is being forwarded to a different set of destinations.
SIP 430: The specific flow to a user agent has failed but other flows may succeed. Used with SIP outbound (RFC 5626).
You encounter 181 when when the callee has call forwarding enabled and the request is being redirected to another number or device.
You encounter 430 when when using SIP outbound connections and the specific TCP/TLS connection (flow) to the UA has been lost.
कब किसका उपयोग करें
For 181 (Call Is Being Forwarded): No action needed. The call is being redirected. If forwarding is unintended, the callee should update their forwarding settings. For 430 (Flow Failed): The proxy should attempt delivery via other registered flows. The UA should re-register to establish a new flow.