Coiled phone cords were designed to allow the telephone receiver to extend a great distance without the need for long, unsightly cables. Unfortunately, after prolonged use the coils in the cord can get tangled and require straightening. This is a very simple task that can be completed in a few minutes and have your phone cord looking neat and tidy again.
Work out which direction the curls in the cord go. This will vary from phone to phone depending on where you walk with the phone and which hand you hold the receiver in, along with other factors.
Take the phone off the hook and hold the receiver firmly. Dropping the phone could result in damage which can only be fixed by buying a new phone.
Rotate the receiver clockwise or counterclockwise depending on which way each section of the cord has curled.
Continue until the cord is straightened as much as you want.
Replace the receiver on the hook.
Install a shorter phone cord. It might have a shorter range, but will not get tangled so easily. You can also stand on a kitchen chair and hold the cable allowing the phone to unravel itself. This will not work if the cord is to badly tangled.
If you straighten the cord too vigorously or too much you could damage the cable inside.