McDVOICE -McDonald's McDVoice.com customer survey Below you are going to get all of the info about www.Mcdvoice.com survey, likewise referred to as mcdvoice con survey. Surveys are among the key channels for collecting public comments about any organization, brand, and product. Various companies adopt ways that are different in order to gather info about the performance of theirs and also to understand public opinion to boost the services of theirs. McDonald's also started a client survey to realize the remarks of clients and also named it McDVOICE.