As a restaurant worker, I have to say that it is very impolite to answer the phone loudly during dinner. But there is no doubt that advice is useless. So I want to know how to block the cellphone signal and give other guests a comfortable dining environment
Some coercive measures are needed against such rude behavior. Such as cell phone signal jammer. Such devices can create a blockage around them that blocks cell phone signals. Suitable for use in restaurants.