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.
Wi-Fi calling allows you to use a Wi-Fi network to make and receive phone calls, rather than using the traditional mobile network.This benefits those in poor signal areas, such as rural villages and underground stations, as you'll be able to harness the power of available Wi-Fi networks to stay connected. word of warning here, if you start a call on Wi-Fi and then venture outside of your network's range the call won't automatically transfer to your mobile network-you'll get cut off, and vice versa.