ContributionsMost RecentMost LikesSolutions1.how much does cox charge for phone jack installation? tech take photo of wifi password to test the speed on his device? 3. does cox tell you of preplanned outages? where is it broadcasted? 1.how much cox charge for phone jack install? phoneline only goes through modem, tech says need to call alarm or electrician compnay if want phone jack in another room.2. is it usual tech photo your wifi password to test speed on his device? 3. doex cox tell you of preplaned outages? where is it braodcasted?