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.
You can choose to use your Bluetooth headset, your iPhone, or the iPhone's speakerphone to make the call. Tap the Bluetooth headset icon and the call will be sent there. Now you should be connected. You can end the call by using the button on your headset, or by tapping the End Call button on the iPhone's screen.n the Bluetooth settings screen, you'll see the name of the headset appear under the list of devices. You tap the name of the headset, and the iPhone will connect to it. You may be asked to enter a PIN; if so, the headset manufacturer should supply the number you need.