ContributionsMost RecentMost LikesSolutionsUpdate - Outbound calls I didn't make in call history. After unplugging the phone jack in the alarm system box, once again, for the 6th Thursday in a row, at 1:22am, my phone made an outgoing call to 855-294-2278. I guess I'll make another call to Cox. Maybe whoever I reach will have something new to suggest, other than switching out the modem. Thanks to all for the ideas I've gotten from the replies to my original post. Re: Outbound calls I didn't make in call history. There is an alarm system, but we never had it activated when we purchased the home several years ago. I believe it had already been disconnected. Outbound calls I didn't make in call history. For each of the past three Thursdays, my call history shows there was an outgoing call made at 1:23am to the same unfamiliar number, for the same length of time. Problem is.......I never made the calls. What's happening?