Data Collection Methodology :
Telephone Interview (CATI) approximately 10 minutes long
Sample Size: Total 60 samples per quarter, broken down into
30 KAs
30 SMEs
Respondent Criteria :
AIS customers who have used a AIS corporate call center in the past 1 month*
Each respondent will be included in the survey only once during the 12-month tracking period
Fieldwork Period Fourth wave):
April – May 2016