Question: What is the primary purpose of the Redirecting party subaddress in mobile radio interface Layer 3 specification?
Option 1: To identify a specific redirecting server
Option 2: To associate a subaddress with the redirecting party for call redirection purposes
Option 3: To authenticate the redirecting party's identity
Option 4: To specify the redirecting party's network address
Explanation: The Redirecting party subaddress is used to identify a subaddress associated with the redirecting party, which is essential for call redirection purposes. This allows the network to correctly route calls and ensure that the redirecting party can be reached at the specified subaddress.