AT&T 1739 - Manual (Page 12)

General product care

To keep the answering system working and looking good, follow these guidelines:
• Avoid putting it near heating appliances and devices which generate electrical noise (motors,
fluorescent lights, etc.).
• DO NOT expose it to direct sunlight or moisture.
• Avoid dropping the answering system and/or other rough treatment.
• Clean with a soft cloth.
• Never use a strong cleaning agent or abrasive powder because this will damage the finish.
• Retain the original packaging in case it is necessary to ship it at a later date.