SIP 302 Moved Temporarily vs 403 Forbidden
SIP 302 (Moved Temporarily) is a 3xx Redirection response, while 403 (Forbidden) is a 4xx Client 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, 403 means that the server understood the request but is refusing to fulfill it. Authorization will not help. The request should not be repeated.
描述
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.
何时出现
When a user is temporarily reachable at a different location, such as when traveling or using a different device.
如何修复
Redirect the current call to the Contact URI provided, but keep the original URI for future requests.
描述
The server understood the request but is refusing to fulfill it. Authorization will not help. The request should not be repeated.
何时出现
When the server policy denies the request regardless of credentials. Common for blocked numbers, restricted routes, or ACL violations.
如何修复
Check server ACLs and routing policies. Verify the caller is permitted to make this type of call. Contact the server administrator if the block is unexpected.
主要区别
302 is a 3xx Redirection response, while 403 is a 4xx Client 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 403: The server understood the request but is refusing to fulfill it. Authorization will not help. The request should not be repeated.
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 403 when when the server policy denies the request regardless of credentials. Common for blocked numbers, restricted routes, or ACL violations.
何时使用哪个
For 302 (Moved Temporarily): Redirect the current call to the Contact URI provided, but keep the original URI for future requests. For 403 (Forbidden): Check server ACLs and routing policies. Verify the caller is permitted to make this type of call. Contact the server administrator if the block is unexpected.