Source Code: Github
Smart Phone ++ 
A simplified SIP softphone
Graphic Design by Ashley King
Software design and workflow by Ashley King 
Including designing a SMS system to work with internal DID's
QR Provisioning Design and implementation by Ashley King
Currently Available in the following Platforms: iOS Android OS X
Known Issues: Currently incompatible with Google Pixel 2 which operates on the Android platform.
Description: Cellular ties TXRX port to 5060 which is used for VoIP Protocols. Failure occurs when switching from WiFi to Cellular Service, which causes the phone to not auto register due to being "stuck" on the 4G LTE connection internally while data traffic continues to be routed through the wifi connection. . 
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