Advertisements I have a sat-t60 I just hooked up, it says I cannot use the tivo function until it makes a call. I set up the "phone connection" and it made a successful test call but each time it goes to make a daily call I get "Failed, unknown error" my other dtivo unit, dvr80 has no issues. I have comcast for my phone service. thanks. I do have the *70, set to disable call waiting.