Question: What happens to a mobile station in a Voice Group Call Service (VGCS) that loses contact with the network while in talking mode?
Option 1: It remains in talking mode, attempting to re-establish contact on the same uplink.
Option 2: It immediately returns to group receive mode.
Option 3: It directly switches to idle mode without attempting to reconnect to the call.
Option 4: It initiates a cell re-selection algorithm to find a new cell before deciding its next operational mode.
Explanation: In VGCS, when a talking subscriber's mobile station loses network contact, to efficiently manage resources and prevent uplink lockout for other potential speakers, the mobile promptly switches back to group receive mode. This ensures the uplink is freed for access by other mobile stations in the group call, maintaining service continuity and accessibility.