Question: What should the network do when it needs to initiate a paging procedure for CS fallback, but there is a stored paging restriction of the UE with a Paging restriction type set to "All paging is restricted except for specified PDN connection(s)"?
Option 1: The network should initiate the paging procedure regardless of the stored paging restriction.
Option 2: The network should not initiate the paging procedure and wait for the UE to establish a NAS signalling connection.
Option 3: The network should send a CS SERVICE NOTIFICATION message to notify the UE about an incoming mobile terminating CS service excluding SMS over SGs.
Option 4: The network should not initiate the paging procedure for CS fallback.
Explanation: According to the text, if the MME has stored a paging restriction of the UE and the Paging restriction type is set to "All paging is restricted except for specified PDN connection(s)" , the network should not initiate the paging procedure for CS fallback.