Question: What is the primary focus of the requirements outlined for the Man-Machine Interface (MMI) of User Equipment (UE) in terms of service access?
Option 1: Detailed specifications for physical layout of input/output features to ensure uniformity across all UEs.
Option 2: Standardized control procedures for accessing services, with minimal emphasis on physical input features.
Option 3: Mandatory implementation of automatic devices for carrying out user actions.
Option 4: Comprehensive guidelines for disabling MMI functions without SIM/USIM restrictions.
Explanation: The correct answer reflects the emphasis on standardized control procedures (e.g., call establishment, supplementary services) while keeping requirements on physical input/output features to a minimum, allowing for diversity in UE design and future MMI developments.