Many of the restaurants here have call bells at the table with corresponding buttons to call for waitstaff service. I’m not sure if it allows for better or worse service. The ‘ding-ding-dong’ sound can be easily ignored, making it difficult for customers to get service. Or it can be great, attentive service when needed as opposed to having to wave down the proper waitstaff and straining your neck looking all over the restaurant.
Thoughtful, interesting product solution.