A Fosber America technical customer service support representative can be reached during business hours 7:30 – 4:30 CST by calling 920-338-6600. Technical customer service support representatives are standing by 24/7 for after-hours support. Call 920-338-6600 and leave a message on our after-hours voicemail system. A technical customer service support representative will be paged. The representative will return your call ASAP! In the rare event you are unable to leave a message or are not getting a return call, please call the mobile device at 920-371-0161 and leave a message there.