Question: What is assumed for IMS voice support in NG-RAN, regarding network ability?
Option 1: Ability to support QoS flows with 5QI for voice and IMS signalling.
Option 2: Ability to support only IMS signalling without QoS flows.
Option 3: Ability to support only voice sessions without IMS signalling.
Option 4: Ability to support neither QoS flows nor IMS signalling.
Explanation: For IMS voice support in NG-RAN, the network is assumed to have the ability to support Quality of Service (QoS) flows with a specific QoS identifier (5QI) for both voice and IMS signalling. This ensures that voice sessions can be properly prioritized and managed within the network.