The App connects the device via Bluetooth 4 to an Aircraft Server which either contains the Iridium transceiver and equipment to send/receive SMS/Email messages plus make phone calls or connects to existing equipment which only has support for SMS/Email messages. Voice calls can be initiated via the App using your own contacts, and then use an Iridium handset to talk. Chiimp4 is the ideal solution, for the following reasons:1. Operates via Bluetooth 4, which is documented and tested as safe for use in aircraft.2. Provides both a voice and data interface for Smartphone and Tablets3. Requires only low cost portable equipment to interface with satellite and terrestrial networks.4. Can be retrofitted without requiring certification.5. Eliminates the requirement for an on board PABX and hardwired telephone handset, (Saving in excess of $50K - $100K per aircraft).6. Turns the existing slow cockpit and cabin data link into a useful affordable messaging service.7. Enhances the existing broadband service by facilitating direct control of the voice channels and the addition of an SMS/messaging service. 8. Connects passenger and pilot outside of the cellular roaming network, so no roaming charges.9. Is compatible with all satellite networks