Blue Call

Talk to friends/people in your proximity at no cost over Bluetooth and Wifi. Blue Call Allows for full-duplex voice communication accomplished over WiFi (connected to the same hot spot) or a secure Bluetooth connection.
Perfect for close proximity communications, does not use your air time minutes.
WiFi users: Your wireless router has to support multicast packets. You will not be able to discover each other if it doesn't.
Features:
- Contact list
- Allows associating of a phone to a specific contact
- Uses encrypted Bluetooth channel to transmit voice data
- Ping a contact (long hold on contact for option)
- Receive notifications when someone pings you
- Receive notifications when an available contact comes online for WiFi communications
- Customizable settings
- A specific BlueCall entry can be associated to both a WiFi & Bluetooth device at the same time