Question: In an IP Multimedia Subsystem (IMS), what is a key function of the Media Function (MF) and Media Resource Function (MRF) in relation to data channel media traffic?
Option 1: To authenticate User Equipment (UE) for voice calls only.
Option 2: To manage and forward Short Message Service (SMS) messages between UEs.
Option 3: To provide location services for emergency calls.
Option 4: To manage data channel media resources, terminate bootstrap data channels from the UE, and forward HTTP/application data traffic as controlled by the IMS Application Server (AS).
Explanation: This is correct because the MF and MRF are responsible for managing data channel media resources under the control of the IMS AS. They also handle terminating bootstrap data channels from the User Equipment (UE) and forwarding HTTP traffic between the UE and the Data Channel Serving Function (DCSF), as well as potentially anchoring and forwarding application data traffic in peer-to-peer (P2P) scenarios, highlighting their crucial role in data channel media traffic management within the IMS infrastructure.