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.
WiFi phones that use the 802.11b or 802.11g standards transmit at 2.4 GHz. Phones that use the 802.11a standard transmit at 5 GHz. When you make a call on a WiFi phone, you dial the number of the person you want to call, just like you would with a cell phone.If you're calling another VoIP user, you may enter a VoIP address instead of a phone number, depending on the service provider's requirements.rom their user interface to how they work, WiFi phones are a lot like cell phones. Like a basic cell phone, a WiFi phone has a printed circuit board (PCB) that connects: 1  A processor. 2  A speaker and a microphone.