3. Without moving your head or the ruler open the left eye and close the right eye. Read the number that lines up with the centre of the pupil of the left eye. This number represents your Distance PD in millimetres. You have just used this technique to measure your distance PD. 4.
Lift the receiver and listen for the dial tone. Enter *74. Press a number between 2 and 9. This is your Speed Dial digit. Dial the phone number you want to assign to this digit. Note: For domestic long-distance calls, dial 1 plus the area code and then the phone number.
Click on Calculate Distance. In the Speed calculator, enter the distance value and conversion units designation. Then enter the time value and then select the conversion designation for the speed answer. Click on Calculate Speed.