the.com/telemarketer

means Someone whose job is to call strangers on the phone to sell products or services, usually unsolicited.

from A straightforward 20th-century blend of 'tele-' (Greek for 'far off,' the same root as television and telephone) and 'marketer.' It surfaced as telephone-based sales grew into their own industry, with 'telemarketing' entering wide use around the 1970s as a brisk, businesslike label for what was, from the start, a mixed blessing to whoever picked up the phone.