A professional who visits agents, tie line customers, and private wire patrons to demonstrate to employees use and operation of telegraph equipment and facilities. Respnsibilities include:

• Demonstrates use of telegraph equipment and operating procedures.
• Explains rates and company services.
• Consults with customers concerning communication needs and suggests methods of eliminating operational difficulties.
• Suggests modifications of customer's private wire switching equipment.
• Prepares written reports of services rendered to customers, including descriptions of difficulties encountered.
• Aids in development and preparation of operating procedures.