This revision to Section 637 eliminates the specifications for mobile telephones, pagers, two-way radio systems and adding machines. Mobile telephones are now available to Department construction inspection staff through the Information Technology Division. Mobile telephones have been identified as a tool of the trade for Consultant construction inspection staff. Pagers and two-way radio systems are no longer being used by construction inspection staff. Adding machines are no longer necessary with the provision of computers for construction inspection staff.