Question: How can a network function handle data channel media in an IMS architecture enhanced for data channel services, according to 3GPP specifications?
Option 1: Solely through the introduction of a new network element dedicated to voice services.
Option 2: Exclusively by enhancing the existing IMS Media Resource Function (MRF) or by introducing a new Media Function (MF).
Option 3: Either by enhancing the existing IMS MRF to perform media functions related to Data Channels, or by introducing a new network function called Media Function (MF) for media capabilities.
Option 4: Only through the use of service-based interfaces without any modifications to existing network functions.
Explanation: This option correctly outlines the two specified methods for handling data channel media in an enhanced IMS architecture: enhancing the existing MRF for media functions related to Data Channels, and introducing a new Media Function (MF) for providing media capabilities. This aligns with the described architecture supporting the separation of signaling and media functions for data channel services.