In all compression modes driver uses RTSP/RTP/UDP/IP protocols for video receiving. HTTP protocol is used for parameters setting/retrieving.
If there is a firewall between VMS and the cameras, the following RTSP/UDP/HTTP ports must be opened:
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HTTP: default port is 80,
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RTSP: port 554,
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UDP: two sequential ports per video stream is needed in a port range 3556 to 4556.
For example: if there are 4 Vivotek IP cameras in a VMS, then ports 3556, 3557, 3558, 3559, 3560, 3561, 3562 and 3563 will be used. If a port is not free, it will be skipped.
Limitations
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Sometimes camera goes to the "HTTP only" mode according to network capabilities detection mechanism (camera internal mechanism). To return camera to the "RTP" mode it should be rebooted.
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Camera skips channel settings while switching from the "quality priority" mode to the "frame rate priority" mode. Video mode can be set in driver XML file.
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Default viewing mask for high resolution doesn't show all picture. It can be configured using Web-interface.
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Maximum frame rate for high resolutions is lower than declared.
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Commands for iris changing are not working for tested SD7323 camera.
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AAC audio decompression is supported from VMS 7.4.4 or higher.
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Sony H-series devices (like SNC-HM662 camera) uses Vivotek OEM SDK unlike other Sony G6 cameras. The Vivotek native driver should be used for these devices instead of Sony native driver.
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The Windows XP is not supported since driver version 1.6.1.0
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CCRiA and CCFiA features available only for devices 8xxx series or higher
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When resolution is changed by alarm, user can see one invalid frame. This is device issue - camera send one invalid frame - and driver cannot skip it, because all headers looks ok.