Question: In a Voice Group Call Service (VGCS) as per 3GPP standards, what happens to prefixes when storing group IDs on a Subscriber Identity Module (SIM)?
Option 1: Prefixes are stored along with group IDs on the SIM for efficient call routing.
Option 2: Prefixes are not stored on the SIM but are required for group ID activation.
Option 3: Prefixes are stored separately from group IDs on the SIM for organizational purposes.
Option 4: Group IDs stored on the SIM include prefixes only for international groups.
Explanation: According to VGCS standards, when storing group IDs on a SIM, prefixes used in conjunction with these group IDs are not stored on the SIM. This implies that while prefixes may be utilized in the context of group IDs (e.g., for call routing or identification), they are not retained on the SIM alongside the group IDs themselves, highlighting an aspect of how VGCS manages subscriber information at the device level.