SIP 302 Moved Temporarily vs 600 Busy Everywhere
SIP 302 (Moved Temporarily) is a 3xx Redirection response, while 600 (Busy Everywhere) is a 6xx Global Failure response. 302 indicates 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. 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.
Описание
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.
Когда вы это видите
When a user is temporarily reachable at a different location, such as when traveling or using a different device.
Как исправить
Redirect the current call to the Contact URI provided, but keep the original URI for future requests.
Описание
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.
Когда вы это видите
When the callee has rejected the call on all devices. No other endpoints should be tried. The user is universally busy.
Как исправить
Wait and try again later. No alternative contact points exist. The callee must become available on their own.
Ключевые различия
302 is a 3xx Redirection response, while 600 is a 6xx Global Failure response.
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.
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 302 when when a user is temporarily reachable at a different location, such as when traveling or using a different device.
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.
Когда что использовать
For 302 (Moved Temporarily): Redirect the current call to the Contact URI provided, but keep the original URI for future requests. For 600 (Busy Everywhere): Wait and try again later. No alternative contact points exist. The callee must become available on their own.