SIP 301 Moved Permanently vs 600 Busy Everywhere
SIP 301 (Moved Permanently) is a 3xx Redirection response, while 600 (Busy Everywhere) is a 6xx Global Failure response. 301 indicates that the user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header. In contrast, 600 means that the callee's end system was contacted successfully but the callee is busy and does not wish to take the call at this time. Unlike 486 (Busy Here), this is a definitive response.
説明
The user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header.
このコードが表示される場合
When a user has permanently changed their SIP address. All future calls should be directed to the new URI.
解決方法
Update your address book or routing tables to use the new Contact URI provided in the response.
説明
The callee's end system was contacted successfully but the callee is busy and does not wish to take the call at this time. Unlike 486 (Busy Here), this is a definitive response.
このコードが表示される場合
When the callee has rejected the call on all devices. No other endpoints should be tried. The user is universally busy.
解決方法
Wait and try again later. No alternative contact points exist. The callee must become available on their own.
主な違い
301 is a 3xx Redirection response, while 600 is a 6xx Global Failure response.
SIP 301: The user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header.
SIP 600: The callee's end system was contacted successfully but the callee is busy and does not wish to take the call at this time. Unlike 486 (Busy Here), this is a definitive response.
You encounter 301 when when a user has permanently changed their SIP address. All future calls should be directed to the new URI.
You encounter 600 when when the callee has rejected the call on all devices. No other endpoints should be tried. The user is universally busy.
どちらをいつ使うか
For 301 (Moved Permanently): Update your address book or routing tables to use the new Contact URI provided in the response. For 600 (Busy Everywhere): Wait and try again later. No alternative contact points exist. The callee must become available on their own.