Question: What does the W-APN Barring Type List's 'Prohibit access to this W-APN within the VPLMN when the subscriber is located in a VPLMN' setting effectively achieve for a subscriber?
Option 1: Restrict home network (HPLMN) access while allowing visited network (VPLMN) access.
Option 2: Block public internet access through all W-APNs in both HPLMN and VPLMN.
Option 3: Prevent subscribers from accessing a specific W-APN when they are roaming within the same type of network (VPLMN).
Option 4: Allow unrestricted access to all W-APNs for subscribers in their home network (HPLMN).
Explanation: This setting targets the scenario where a subscriber is located in a Visited Public Land Mobile Network (VPLMN) and aims to restrict access to a particular Wireless Access Point Name (W-APN) under those conditions. It doesn't pertain to blocking public internet across all W-APNs, nor does it involve allowing or restricting access based on being in the home network. Instead, it focuses on limiting access to a specific W-APN when the subscriber is in a VPLMN, highlighting nuanced control over network access based on location and service type.