To which SIP response class do the SIP response codes 300 to 399 belong?

To which SIP response class do the SIP response codes 300 to 399 belong?
A . Provisional
B . Client Failure
C . Server Failure
D . Successful
E . Redirection

View Answer

Answer: E

Explanation:

Redirection ― further action needs to be taken in order to complete the request. That is what this class implies.