sandeepkaleDear praveenchethala !
As you have asked that you want some quoetionnaire for the selling the mobile.
List out your Objective of questionnaire i.e. why you want to make this. what out come you want from this.
Decied the target market segment based on the
Age group or sex
then you start thinking from the view of the customer that if you would be a buyer then waht will be your perferences of buying a mobile
list down feature of your mobile phone and then take some competative feature then start making the questionnaire
while calling a customer first ask about his mobile existing mobile why he had choosen that perticular phone then start taking his view what he wat in new phone then tell him about your feature UNIQUE feature only not general then take his feedback for your mobile.
i think this will help you to make a questionnaire for you your caller.