Field Service Professionals - Ericsson

While mechanical matters such as line installation form the most of a field technician’s job, that’s not where their responsibilities end. A field technician’s job is ongoing in the form of both maintenance and repair. As such, forming a working relationship with every customer is vital.

It’s also a field technician’s responsibility to prepare everything from maintenance records to warranty contracts for each job. In many cases, it also falls to a field technician to train customers in essential technical management for the ongoing maintenance of their installations.
https://www.fieldengineer.com/skills/field-service-professionals-ericsson