The term 'Call Maker' refers to a person who is responsible for making phone calls. The crossword solutions for this term are REF (3 letters) and PHONER (6 letters). A Call Maker, or 'REF', is someone who makes phone calls to potential customers or clients in order to promote a product or service. A 'Phoner' is someone who makes phone calls to conduct surveys or polls. Both of these roles involve making phone calls to people in order to gather information or promote a product or service.