1. To add a speed dial number, from the Start screen, tap the Phone tile.
   
2. Tap Speed dial, then tap the Plus icon.
   
3. Scroll to, then tap the Desired contact.
   
4. Tap the Desired number.
   
5. To call a Speed dial contact, from the Speed dial tab, tap the Desired speed dial contact.
   
6. To remove a contact from speed dial, touch and hold the Desired contact, then tap Delete.