See also:

Battery
● Keep the battery surface clean and dry. Clean the battery with a solution of baking soda and water. ● Make certain the terminal connections are clean and securely tightened. ● ...

INFO
- If you are controlling the telephone system by voice command for the first time or do not know the appropriate voice command, speak “Help”. The system announces the available commands. ...

Universal Serial Bus (USB) memory (if so equipped)
This system supports various USB memory sticks, USB hard drives and iPod players. There are some USB devices which may not be supported with this system. ● Make sure that the USB device i ...