Telemarketing is one of the most effective methods of push marketing. It's an positive way of selling which gets high response rates. However, to make the campaign successful you need to gain the interest of your caller within the first 8 seconds. It's only when they're interested that they'll actually listen to what you have to offer them.

So you need to have a well rehearsed and strong elevator pitch. This pitch needs to capture the recipient's imagination within 8 seconds, otherwise the phone will simply be put down and you've missed out on a sale. If you go on for more than 8 seconds the recipient will get bored and possibly stop listening.