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 phone calls with Voice over LTE (VoLTE) You can make wideband, high-quality phone calls with VoLTE on an iPhone 6 or later. To make these calls, both phones need to work with VoLTE. Whether you can use VoLTE depends on a few things: Your location, your account with your carrier, and the model of your phone. The carrier, carrier account, location, and phone model of the person you're calling.