SIP 200 OK vs 302 Moved Temporarily
SIP 200 (OK) is a 2xx Success response, while 302 (Moved Temporarily) is a 3xx Redirection response. 200 indicates that the request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully. In contrast, 302 means that the callee has temporarily moved to a different address. The client should retry the request at the Contact address but continue using the original URI for future requests.
説明
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
このコードが表示される場合
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
解決方法
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
説明
The callee has temporarily moved to a different address. The client should retry the request at the Contact address but continue using the original URI for future requests.
このコードが表示される場合
When a user is temporarily reachable at a different location, such as when traveling or using a different device.
解決方法
Redirect the current call to the Contact URI provided, but keep the original URI for future requests.
主な違い
200 is a 2xx Success response, while 302 is a 3xx Redirection response.
SIP 200: The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
SIP 302: The callee has temporarily moved to a different address. The client should retry the request at the Contact address but continue using the original URI for future requests.
You encounter 200 when when a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
You encounter 302 when when a user is temporarily reachable at a different location, such as when traveling or using a different device.
どちらをいつ使うか
For 200 (OK): No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions. For 302 (Moved Temporarily): Redirect the current call to the Contact URI provided, but keep the original URI for future requests.