Question: What is the primary purpose of the 'Send Info For Incoming Call' Information Flow (IF) in a Mobile Network?
Option 1: To indicate that an incoming call, for which the MSC requested subscription information, should be forwarded.
Option 2: To request additional subscriber data for outgoing calls from the HLR.
Option 3: To notify the MSC of a successful call setup for a roaming subscriber.
Option 4: To initiate a location update procedure for an incoming roaming subscriber.
Explanation: The correct answer highlights the key function of the 'Send Info For Incoming Call' IF, signaling that an incoming call, for which the Mobile Switching Center (MSC) has requested subscription details, is to be forwarded, crucial for customized applications in mobile networks, handling calls according to subscriber preferences or service agreements.