Can someone post United phone leash policy on long call reserve both current and when the switch to 18 hours occurs.Is it like Delta's where there is no obligation to be phone contactable as long as you make a schedule check to insure you can always make a 18 hour call out or a more traditional that requires phone availability at all times with a time designated return call. Basically can you hit the course for 18 holes or head out fishing without a phone or a area of no coverage.