Question: How does a UE determine if the enhanced coverage feature is restricted or not for a specific PLMN?
Option 1: The UE assumes Enhanced Coverage is allowed unless explicitly restricted by the network for a PLMN.
Option 2: The UE checks the Enhanced Coverage Restricted parameter sent by the MME in the Attach/TAU Accept message, but only if it has previously indicated support for restriction of use of Enhanced Coverage.
Option 3: The UE always assumes that enhanced coverage is restricted and requires explicit permission from the network to use it.
Option 4: The UE checks the roaming agreement with the subscriber's HPLMN to determine if enhanced coverage is restricted or not.
Explanation: According to the text, "The UE assumes Enhanced Coverage is allowed unless explicitly restricted by the network for a PLMN." This indicates that the default behavior of the UE is to assume that enhanced coverage is allowed, and it only restricts its use if explicitly told to do so by the network.