"Cold calls" refers to the act of making unsolicited phone calls to unknown individuals or businesses in order to promote or sell a product or service, usually without any prior contact or introduction. Full definition
I am looking forward to establishing new physician relationships with the expectation of make cold calls, meeting the existing needs of existing clients, and expecting to be oriented. (members.climber.com)
They contact potential clients through cold calling, emails, and arranged meetings to offer advertising services. (jobdescriptionandresumeexamples.com)
There's just no place for cold calls in this connected world. (tenfold.com)