William has an internet connection that does not allow him to make calls when connected to the internet. what internet service can he use over his existing telephone line that will enable him to make calls and browse the internet at the same time?

Ihave a singular monitor that is a tv for my computer. recently, i took apart my computer and put it back together. when i put in the hdmi cord and booted the computer to see if it worked, the computer turned on fine but the screen was blue with "hdmi no signal." i've tried everything that doesn't require buying spare parts, any answer is appreciated!