Do not open the system’s case. This symbol is intended to inform you that important operating and maintenance instructions are included in the literature accompanying the system. Read and follow precautions when installing and using the Wireless Phone Jack System. • Read and understand all instructions. • Follow all warnings and instructions marked on the system and in this guide. • Unplug this system from the wall outlet before cleaning. Do not use liquid or aerosol cleaners. Use a damp cloth f