[JCerna]

I had a similar problem with a company I used to worked with. Becuase of their high security settings it was hard to use the phone. A work around a friend did for me was an app that trick the phone it's being used so it wont lock. At the end it drain my battery so I finally just told our exchage admin to chill out and take that setting off. Hopefully someone will come by with a real solution.