Following tips can help in make a call successful:

1. Make sure the first impression of the call is good as it is very important for the rest of the call.

2. Be professional yet courteous.

3. It is very important to be a dedicated to a call, the opposite can be sensed very easily on a call.

4. Clear the objective of the call before you make one.

5. At times it is important not to sell over the phone instead connect with the customer and make the deal in the business place.