Bunited2 0 Posted September 23, 2013 Hello, I have a few DVR's out there w/the NV3000 cards still in use. I have recently began using the I/O boards to dial out to people upon an alarm input. The dialing works fine, but I cannot get the attached wav file to play during the calls at all. Support and the manual say's only 8KZ w/16B files only and it still doesn't work. Anybody out there have done this successfully, or not? Thanks, Brian Share this post Link to post Share on other sites