What you need:
Bluetooth capable verizon phone w/ chaperone
Arm pouch case
Stereo bluetooth headset
Activate the bluetooth on the cell phone, and secure it in the arm pouch case and attach the case to your dog's leg.
Then activate the bluetooth headset, turn on auto answer, and secure to your dog's head.
Call your friendly neighborhood verizon wireless store and activate chaperone.
Now whenever you call your dog, the headset will automatically answer the call, and with chaperone, you'll always know where your dog is, and never lose your dog.
The first to put this to work gets a free pizza.