Automated 'Lesson End' notification software
We have a new system in school whereby one floor of the school operates lessons half the length of the other 3 floors. The Head has asked me to look into a system on our PCs which will flash up on teacher computers that the lessons on the top floor are due to end - so that lessons on this floor can change over without the main school bell disturbing the other floors.
Has anyone any experience of such software which they could recommend? it would need to reliably display the message/play the sound at the same time on every PC on a set schedule, but be able to be restricted to certain machines on the network only.
Any advice appreciated.