Question: What is the primary purpose of the Radio Access Bearer (RAB) ID parameter in a telecom network?
Option 1: To assign ISDN numbers to User Equipment (UE)
Option 2: To establish IP connectivity for IMS (IP Multimedia Subsystem) services
Option 3: To relate radio resources with specific radio access bearers
Option 4: To authenticate UE in the network before service allocation
Explanation: The RAB ID is crucial for managing radio resources efficiently. By linking radio resources to specific radio access bearers, it ensures optimized data transmission and proper routing within the network, maintaining quality of service (QoS) in wireless communications, which is essential for effective resource allocation and traffic management.