SIP 180 Ringing vs 410 Gone
SIP 180 (Ringing) is a 1xx Provisional response, while 410 (Gone) is a 4xx Client Failure response. 180 indicates that the UA receiving the INVITE is trying to alert the user. This response is used to initiate local ringback tone at the caller's end. In contrast, 410 means that the requested resource is no longer available at the server and no forwarding address is known. This is expected to be a permanent condition.
説明
The UA receiving the INVITE is trying to alert the user. This response is used to initiate local ringback tone at the caller's end.
このコードが表示される場合
During call setup when the callee's phone is ringing. You should hear a ringback tone after receiving this response.
解決方法
No fix needed — the callee's device is ringing. If the call never connects after ringing, check the callee's device or call forwarding settings.
説明
The requested resource is no longer available at the server and no forwarding address is known. This is expected to be a permanent condition.
このコードが表示される場合
When a user account has been permanently deactivated or removed from the server with no forwarding information.
解決方法
The user is permanently gone. Remove this URI from your contacts. Unlike 404, the server knows the user once existed here.
主な違い
180 is a 1xx Provisional response, while 410 is a 4xx Client Failure response.
SIP 180: The UA receiving the INVITE is trying to alert the user. This response is used to initiate local ringback tone at the caller's end.
SIP 410: The requested resource is no longer available at the server and no forwarding address is known. This is expected to be a permanent condition.
You encounter 180 when during call setup when the callee's phone is ringing. You should hear a ringback tone after receiving this response.
You encounter 410 when when a user account has been permanently deactivated or removed from the server with no forwarding information.
どちらをいつ使うか
For 180 (Ringing): No fix needed — the callee's device is ringing. If the call never connects after ringing, check the callee's device or call forwarding settings. For 410 (Gone): The user is permanently gone. Remove this URI from your contacts. Unlike 404, the server knows the user once existed here.