Question: In a telecom network, what is the primary purpose of a user utilizing Private Numbering Plans (PNPs) as described in service principles?
Option 1: To enhance network security for all subscribers
Option 2: To facilitate easy dialing of frequently contacted numbers
Option 3: To enable direct international calling without prefixes
Option 4: To manage incoming calls from unknown numbers
Explanation: Private Numbering Plans (PNPs) are utilized to simplify the process of contacting often-used numbers, making it easier for users to reach frequent contacts by using shorter, more memorable numbers. This aligns with the service principle of enhancing user convenience and experience in managing their communications.