All interphone messages should be terminated with...

Interphone messages should be terminated with your operating initials to ensure clarity and efficiency in communication. Using operating initials allows the recipient of the message to quickly identify the sender without confusion, maintaining a streamlined and professional interaction. This practice not only enhances communication but also aids in record-keeping and accountability, as the initials are a concise representation of the controller's identity.

Moreover, employing operating initials aligns with established protocols within air traffic control environments, where clear and rapid exchanges of information are crucial for safety and operational effectiveness. Each individual controller may have a specific set of initials that are recognized within the system, promoting familiarity and reducing misunderstandings.

In contrast, mentioning your full name, the current time, or station identification may introduce unnecessary complexity to the communication. Full names can be lengthy, potentially leading to confusion, while providing the current time might not be relevant to all messages. Station identification, while important, is typically included at the beginning of a transmission rather than at the end. Hence, using operating initials is the best practice for concluding interphone messages effectively.