Smart dialer with the following features:
- Vibration when call end
- Time tracker
- Speed dial
- Call contact from phone book
- Log total call time for each number
- Pin contact to start screen
- Search contact by phone number or display name
- Outgoing call history
- integrate with Cortan you can open app with command "9 dial". The sentences is very simple with whose not familiar with English (like me :) )
+ call a contact in speed dial by talks simple sentences. For example, if you want to call the first contact in speed dial, from Cortana you can simply say: "9 dial, call zero". Similar with other contact: call one, two, three.... Now I only support from zero to ten contact in speed dial
+ find contact in speed dial: from Cortan you can say "9 dial, search (or find) (name or phone number you want to find)"
+ open the app: very simple: "9 dial"
+ go to speed dial or history: "9 dial, go to (show me; take me to; bring up; navigate to; launch) speed dial"

Windows Phone Limitations:
- can not call without confirmation dialog
- can not interact with missed/incoming calls
- call time include waiting time
- can not stop/recall the phone number. There are only vibrate the phone
- shouldn't leave to other app when the app is calling (even if Action center)