Few professions are hated with as much passion as telemarketing. Even businesses hate receiving sales calls, and for good reason. The marketing or sales call is an interruption – usually with the intent of selling something that the business never asked for. Many businesses fail to understand this and continue to rely on old tactics of business telemarketing to increase their sales. So, how do you switch from becoming an unwanted pest to a welcomed guest? Stop making the same mistakes that everyone else is making.