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Customer Service



2 East Main Street Carpentersville, IL 60110

Customer Service Hours: 7:30 - 5:00 Central Standard Time
Phone: 847-428-7171

Toll Free: 888-234-OTTO(6886) (Communications Products Only)
Controls Product Fax: 847-428-1956
Communications Product Fax: 847-551-1343

Email: info@ottoexcellence.com