In case of issues which cannot be solved by phone, please send the
complete device with a copy of the sales receipt to the following
address:
FHF
Support ResistTel MB
Gewerbeallee 15-19
D-45478 Mülheim an der Ruhr
If no errors are found during the inspection, we shall issue an
invoice for the processing fee.
Overview of the device
(Screws)
(Snap-in hook)
(Cover screws)
(Upper part of
the telephone)
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