What's the difference between telephone survey and offline survey? Can two companies do it?

The advantages of telephone survey are

1, get the market information as quickly as possible;

2. Save investigation time and money;

Offline investigation is street interception and home visit.

The information consultation in the study room created its own customer service call center. CATI system (computer-aided investigation system) is operated by full-time interviewers with more than 2 years of investigation experience; Set up your own server to ensure the safety of data storage; A number of CATI visiting seats meet the project requirements; Supervise the on-site monitoring of the whole visit. Household survey is a common way of property satisfaction survey for information consultation in upper study room.