Question: What happens when a 'data centric' UE, operating in Enhanced Coverage (CE) mode B, receives a SIP invite for IMS PS voice/video services?
Option 1: The UE accepts the SIP invite and establishes the voice/video call using IMS PS services.
Option 2: The UE rejects any SIP invite for IMS PS voice/video services as per existing IMS procedures.
Option 3: The UE automatically switches to CE mode A to facilitate the voice/video call.
Option 4: The UE ignores the SIP invite and continues with ongoing data transmissions.
Explanation: According to the specified behavior for 'data centric' UEs in Enhanced Coverage (CE) mode B, to preserve resources and ensure service quality, such UEs are mandated to reject invitations for voice/video services that require higher bandwidth and better coverage, thus maintaining priority on data-centric operations under those conditions.