The After Sales Department operates according to the current international standards, necessary to comply with the legal and conventional guarantee rules. Synthetically the repair-loop process is performed as follows: The products are accepted by the logistics or by the front-end network which will have the task of checking and validating the necessary documentation of all the cases under warranty (Failure, Doa, etc.) and out of warranty. The devices are registered into an information system (CRM) in which all the information necessary to carry out the repair process is kept. The process takes place according to the FIFO (first input first out) logic. Daily checks are carried out on products in order to determine and maintain pre-established standards and performances. Repair / replacement reports are prepared and output for final tests. All products before leaving the laboratory are tested one by one and placed at the logistics that as agreed, will ship out the device to the dealer-customer.