How do you communicate with a customer on phone about your service?

We will greet first the customer, then asking them few questions about their status. Introducing our service to them, give the important facts about our service that affects their daily life and budget. Last is offering and convincing the customer to avail our service, if customer is we will ask their information such as name, address and account number. We will ask them to submit the remaining requirements via email address. Before end of our call, we will do a close greeting to customer then end of conversation.