Which of the following is permitted on duty according to the guidelines provided?

The guidelines for train dispatchers are designed to ensure that all activities conducted during duty are focused on maintaining safety and efficiency in train operations. Using electronic devices provided by the railroad is permitted because these tools are specifically intended for communication and operational purposes. They are essential for ensuring that dispatchers can monitor trains, communicate with crew members, and make decisions that affect the flow of rail traffic.

In contrast, activities such as reading train schedules for non-operational reasons, playing games, or engaging in personal conversations divert attention away from the critical responsibilities of a dispatcher. The use of railroad-provided electronic devices aligns with the expectations of the role, ensuring that the dispatcher remains engaged and aware of their surroundings, allowing for quicker responses to any issues that may arise during train operations. This focus on safety and communication is what justifies the allowance of such devices while on duty.