This App helps making calls easy on the go by pressing the headset button of your wired headset.
You can configure upto 3 speed dial numbers as your quick contacts.
Click and hold the headset button for more then 2 seconds to activate speedDial.(NOTE: This wont start the call.)

Single click (not click and hold this time) the headset button once twice or thrice to make respective speed dial call.
To cancel the speed dial, click more than 3 times or do not click headset button within 2 seconds of activating speed dial service.
NOTE: As the speed dial service starts only after a Click and Hold, you would never end up making accidental calls, also you can continue using other headset button controlling applications on single tap.

You also have an option to disable Speed dial service, in case you do not need it for some time.

• Easy accessibility to make calls while on the go, without any need to unlock or even interact with the device.
• Minimal Memory usage as the apps background service runs only after tap hold of the headset button, and sleeps after starting the call.
• Easily add phone numbers by searching through your default phonebBook.
• Option to configure the tap hold duration and adding More Speed dial numbers coming soon.
• More suggestions are welcome.

Screenshots: