Who gives a crap if you are? I've never called to be released from RR the last 4 years I've been on reserve. I've had a lot of occurences and scheduling related issues that had to be dealt with by a CP and there's nothing they can do to you. I had 2 UOR's as a newhire and 3 so far as a res capt. Just make up some crap about how you accidently turned your phone off. Seriously.... don't sweat it man.