What do you suggest we do to comply with the 24/7 requirement?
It's recommended that a best effort be made to assure that 24/7 contact is possible in the occasion of a security event. Remote sites without cell tower coverage should make home phone number's of responsible individuals known to the CAO IT staff.
An alternate to the System Administrator should be known to the IHS CAO IT staff in the event that the System Administrator is not available. However, it is recommended that the System Administrator develop some method to access the system remotely.