This is what a good telemarketer does. Builds Confidence.
In Fact every time you hear I'm not interested you should hear : I should be interested if you insist. Or I'm not interested today, perhaps tomorrow I'll change my mind.
Objections come; treat them as your friends that give you a helpful hand to close the deal. The way you treat objections will make the difference between you and rest of phone sellers. Enjoy when they appear and use them to make money.