If you have questions:
Mailing Address:
DPS Inc.
8015 E. Crystal Dr
Anaheim, CA 92807
Website:
http://www.q-see.com
Fax:
714-998-3509
Contact Us:
Customer Service:
Phone: 877-998-3440 x 538
Email: cs@dpsi-usa.com
Tech Support:
Phone: 877-998-3440 x 539
Email: ts@dpsi-usa.com
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Operation Manual-4CH Duplex DVR