QNAP Security VioStor NVR (Version: 4.1.2) - Manual (Page 248)

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Technical Support
QNAP provides dedicated online support and customer service via instant messenger.
Online Support: http://www.qnapsecurity.com/onlinesupport.asp
Facebook: https://www.facebook.com/nvr.qnap
Forum: http://forum.qnapsecurity.com
Technical Support in the USA and Canada:
Email: [email protected]
TEL: +1-909-595-2782
Address: 168 University Parkway, Pomona CA 91768
Service Hours: 08:00-17:00 (GMT- 08:00 Pacific Time, Monday to Friday)