Telemarketing is often used to try to sell a product or service, but it can also take the form of surveys or information gathering. It is a very common form of marketing companies use to connect with potential customers of their products or services. It can also include recorded sales pitches programmed to be played over the phone via automatic dialing. Telemarketing techniques are also applied to other forms of electronic marketing using e-mail or fax messages, in which case they are frequently considered spam by receivers.