I think you understand incorrectly for the webUI Open Door.
Here are some explanations:
NPAPI is for immediately open door while in LIVEVIEW mode, basically user can VIEW the video stream and click “Open Door” button to open door. Due to major browser DROPPED such support for security reason, this feature is NOT available now in WebUI. BUT you can still use our free management software GDSManager, doing SAME operation from computer, which is: Viewing the LIVE video stream and click “open door” button to open door and “Microphone” button to do Intercom or two-way communication.
The UI under “Door System Settings --> Keep Door Open --> Immediate Open Door” is TOTALLY different feature which you understand wrong. You will find details of such feature if your read related document like User Manual or Forum Post. Basically this feature is implemented for customers with usage scene like: Library, School, Government, Gym, Private Club, Restaurant, Seminars, Meetings, etc.
I) During normal office hour, door was locked. But there are visitors or guests coming in, administrator can get into the UI to FORCE the door open and configure the time length the door stays OPEN status, without get into BASIC Setting page to enable Visitor PIN (because those visitors are ONE TIME visitors).
II) For Schools, Library, etc application scene, employees can use RFID or PIN to get into the door anytime BUT the door will be opened to public (e.g.: school during morning students need to get in but students do NOT have RFID cards) therefore adminstrator can configure “Schedule Open Door” to let the door open based on time schedule configured. For example, office door open in lunch time, or seminar time, or similar application scene. There are quite some scenes like this and I just named a few.
III) Again, like for above case in School, when the Door is OPENED to public, but some emergency happened, the admin and staff can either enter special PIN from keppad or from UI to overwrite the current door status and GDS3710 allows you to do that. For example in School case, when School is open to public but some bad thing happened and LOCK DOWN is required, any staff knowing emergency PIN can lock the door by entering the emergency PIN from GDS3710 keypad (fastest way) or do this from webUI by logging from GDS3710 from computer.
These are the main reason behind to design feature “Keep Door Open”. This is NOT for users to do this in routine base. (routine base should be via GDSManage Utility Software).
Hope I explained this clearly. Thank you for using GDS3710.