How do they fight against cold calling?

If you are using telemarketing, particularly cold calling as a part of your marketing strategy, you must realize that there would be many obstacles to overcome. Many people are fighting to prevent cold calling. As a result many countries are about to put strong limitations on cold calling and voice broadcasts. Check the article discussing cold calling from the legal point of view to make sure what you do is perfectly legal in your country.

Besides the law and regulations there are other ways of preventing cold calling practitioners from gaining success.

• Passive phone security is when a person refuses to give out his phone number to strangers. They usually do not include their contact details in phone directories as well.
  
  
  However, there is a way for cold callers to bypass this kind of security. Many auto dialers are capable of random calling. An auto dialer just makes up phone numbers hoping that some of them would be valid.
• Other people are using modern phones with number detector on board. It detects the incoming numbers so that the owner could decide whether to pick up the phone or not. It is possible to create a white list for a number detector to allow only calls from "friendly" callers. If your company is not on their white list, they wouldn't pick up.
• The most sophisticated way of preventing cold calling is to install an add-on between the phone and the socket. This device tries to detect an auto dialer. The add-on sends a specific tone back to the caller, when the phone is picked up. Human ear wouldn't recognize this tone but an auto dialer might get puzzled. It should think that the line is damaged and backs off.

So, as you can see there are ways to prevent cold calling. These techniques shouldn't bother you. This is another reason considering pure telemarketing over cold calling. If you use quality leads or an existing customer database, your telemarketing campaign has more chances of success.