If you have a restraining order against you. And you accidentally called them but hung up before it went thru Will that be a violation?

"Inadvertent" contact is not a violation of the protection order BUT it can be a problem as if it is reported, your number will show up as having called and whether it was 'inadvertent' or not is a real question.  I strongly suggest deleting the protected party's number from you phone as there will be a question as to why you still have it in your phone if you are not suppose to be contacting them.