If your home was built after about the year 1999, there is a good chance was wired with Category 5 cable for the phone wiring. That is the 
same wiring that is used for network ethernet cables, just that you use all eight conductors for ethernet instead of only two for a telephone connection. A lot of people are getting rid of their home phones these days and going to cell phones only. Even if you still have a home phone, most modern phone systems only use one of the likely many phone jack locations in your house. As Wi-Fi speeds go up, the usable range of the wireless is going down, hence the need for multiple wireless base stations to get good Wi-Fi coverage throughout the home. A lot of mesh networking systems tout the ability to produce good speeds without wires, but it is always better to hard wire the Wi-Fi “nodes” and any other devices you can. Sometimes these old phone jacks aren’t in the best locations to be utilized, but sometimes they are, and usually you only need two or three of them. The phone jacks can be replaced with ethernet jacks, a network switch can be put at the distribution point in the basement and you can plug in wireless access points, wireless extenders, computers, A/V equipment, etc, making your network more reliable, faster and taking load off of your Wi-Fi. Contact Tech Ease to see what it will take to get your phone jacks converted to network locations.
