For the users of the administrative IT workstations and administrative telephony at the Langen site (operating site "Am DFS-Campus") as well as at Frankfurt Airport in a substitution arrangement, holistic support in the form of on-site support (field service) is required. For a more detailed description of the services advertised – see section II.2.4.

On-site support for approximately 3400 administrative IT workstations connected to a WAN infrastructure in a Microsoft environment (server/Azure Cloud).

In addition, DFS operates 19 telephone systems nationwide for administrative telephony, which are networked and connected to each other via a WAN infrastructure. The on-site support for administrative telephony at the Langen site (operating site "Am DFS-Campus") includes approx. 4500 telephone lines to six telephone systems.

In 2022, approximately 7000 tickets were processed for the "on-site support (field service)" of end users for IT workstations and telephony on Hessian weekdays from 8:00 a.m. to 5:00 p.m.

In particular, the following services must be provided:

On-site support in the event of software malfunctions, restoration of hardware and peripherals, relocation of BK workstations at the Langen site, conversion of BK workstations (within an office), installation / configuration of BK workstations (hardware / software), printers, installation / configuration of notebooks, installation / configuration of special systems, software installations on the BK workstation and notebooks, recording of all changes to inventory data.

As standard software, which is already integrated in the DFS image, Windows 10/11 (64 bit), M 365 (32 bit) as standard, SAP GUI, , MS Edge, Firefox, MS Sharepoint, Teams. The user can select additional products from an IT shop as required, some of which are distributed via an automated process. Some special software must be installed and configured by the on-site support at the user's site.

The following hardware is used in the administrative environment:

DELL notebooks (approx. 3150), DELL tablets (approx. 250) and DELL desktops (approx. 1300). Furthermore, a small amount of Lenovo notebooks and desktops are still used. As standard monitors (22 to 27 inches), users are provided with monitors from Lenovo and DELL and other monitors, printers and peripherals from different brands. The services of the on-site support for the telephone systems are the addition of new connections including shunting work in main, intermediate and final distributors, carrying out relocations (within and between locations, conversion and dismantling of connections, on-site repairs (handset replacement, equipment replacement, etc.) Support and instruction of users for voice mail, DISA function, telephone conferences and fax to mail service, support of the branch offices through telephone advice and spare parts dispatch and support of the service technicians of the maintenance company.

Due to new technical standards, the products may change.