Need a developer that has a PPT (Walkie Talkie ) application that we can embbed into other appllications. The PTT platform must work with a Sip Server like OpenSip or Asterisk. Users can connect to server via any Mobile Internet, Wifi Internet or via Bluetooth hotspots that will be setup for users connection.
This project is not a Design from scratch. It is only for a developer that has something ready in hand.
Please be prepared to show us sample PTT app.