A service call if it's not cox's fault is usually $75 at least in Phoenix and I believe its standard all over. I have a complicated system with two TIVO mini's, VOIP phone (not cox) security cameras etc and once they had to rewire all the way from my box to my home office opposite end of the house via the roof. Since the signal levels were bad coming into the modem they didn't charge me. They also once had to restring from pole to the house which they didn't charge me for. I've been with them 25+ years and 90% very happy other than having to be transferred many times and tech rep can't stay on line when sales dept has to change something.