Telesales is an essential aspect of any business that deals with selling products/services over the phone. However, there are various other terms that are used to describe the same process. Some common synonyms for telesales are inside sales, phone sales, telemarketing, and cold calling. Inside sales refer to the process of selling products/services over the phone, email, or any other digital medium. Phone sales, as the name suggests, is all about selling products/services over the phone. Telemarketing refers to the process of using the phone to promote products/services. Lastly, cold calling is a term used to define the process of making unsolicited phone calls to potential customers to promote products/services.