The Ins and Outs of PC Audio Jack Colors. In many cards, the microphone connector will be pink, the line out or headphone will. be lime green, and the stereo line in will be light blue. Additional jacks may be present. on newer soundcards for rear and mid surround speakers. There is a widely accepted color standard for computer sound card input and output.
If one of the key features of Wi-Fi calling is that you can start/receive a call while on Wi-Fi and it will hand off to the cell network in a seamless fashion, that might not be true for some iPhone 5 users on T-Mobile.
Make calls over Wi-Fi/4G/3G. If you've used the Google Voice app in the past, you may have set it to use your Voice number when making calls. These calls still used your carrier minutes, instead of your data signal. As a solution, Google created a second app that acts as a plug-in for Hangouts, called Hangouts Dialer. This app will add a dialer tab to Hangouts, allowing you to make outbound calls with your Voice number over Wi-Fi/data (VoIP).