There are two books I have found helpful. This book can help you create a customized hiring system that will help you to select the most highly qualified employees. You also may want to write to companies that appear to be successful and find out about their hiring practices and what are they doing to retain employees. I was terrible. I thought it would be easier because I was in the comfort of my home, but it was the most difficult interview I have ever had.
Telephone interviews can be difficult.
I suggest that you keep your answers short and then ask if they would like you to continue. Try not to use cliches. Be prepared and have your notes in front of you with the information that you want to be sure to share. At that time I was given a territory from which the majority of my income was to be derived. My company is allowing this to happen and not compensating us for the loss of income.