Question: What is the primary purpose of the Steering of Roaming (SoR) during the registration procedure service?
Option 1: To allow the home operator to steer a user to a certain network during the registration procedure when the user tries to register to a new (non-preferred) network.
Option 2: To enable the UE to automatically select the preferred network for registration.
Option 3: To provide the visited network with information about the users roaming preferences.
Option 4: To prevent the user from registering on a non-preferred network.
Explanation: The Steering of Roaming (SoR) during the registration procedure service is designed to enable the home operator to steer a user to a specific network during the registration process, particularly when the user attempts to register with a new or non-preferred network. This functionality allows for more control over the roaming experience and can be used to direct users to networks that offer better services or rates.