Trying to identify this box on the outside of the house

My guess is that it is a security keypad. The DNS on the cover could be from D.N. Security Services, Inc. a company from Northern California that was acquired by Universal Services of America in 2009: http://www.universalpro.com/news2.html.

I was given the same recommendation and decided it would be too much work for me to do myself. I was told to use a clay based soil to ensure that it doesn't wash away and to plant some type of ground cover (something like Pachysandra) to take root and hold onto the soil.

I'm far from a gardening expert but it seemed to be a tremendous amount of work to do without some kind of heavy lifting equipment and a few tons of dirt.