Electronic queue and ticketing system with a display

We run a clinic and a service center and need an electronic queue and ticketing system that removes the crowd at the reception. A visitor takes a ticket from a terminal or a web form, selects the service they came for, and receives a number. A large display in the waiting hall shows which number is being called and to which window or office it should go, with a short sound signal for each call.

On the staff side, every window or desk needs a simple operator screen to call the next visitor, redirect a ticket to another service, mark it as served or as a no-show. The system should keep several parallel queues for different service types and route each ticket to the right group of windows. Priority tickets, for example for people with appointments, must be supported without breaking the general order.

We also need waiting statistics: average and maximum waiting time, how many people were served per hour, load by window and by service, and peak periods during the day. This data should be available as clear reports and charts so that we can plan staff shifts. The display, the terminal and the operator screens must work in ordinary browsers, and the whole flow should keep working if the internet briefly drops.