Thank you so much for the info. I will try to revert if we require further information on the server.cfg.
One more info required, if we disable input,display,display-mode,display-settings,connection,devices,devices-disk,devices-printer,devices-usb,devices-network,devices-smartcard,audio,audio-settings,mic,mic-settings,recording in server.cfg in ClientMenuConfiguration key, it is possible if users do windows signoff to get out from the NX session. If that works, we are perfect for to take the decision to procure the licenses.
The product works very well even in 45m/s internet latency. Please let me know what is maximum latency NX can able to play a video in real-time inside in the NX session.