42 Computer services, namely, integration of computer systems and networks to create wireless telecommunications services for use in business, which allows inside and outside service personnel to communicate via a seamless data compatibility link, for handling work orders, logging and tracking, parts orders, scheduling, review of service level agreements (SLAs) and other contract management information, including warranties and entitlements, by utilizing a wireless network with graphical user interfaces at both the inside service personnel data processing system terminals and the outside service personnel wireless mobile devices