cold-call
cold-call ▶verb [ with obj. ] make an unsolicited call on (someone ), by telephone or in person, in an attempt to sell goods or services: (as noun cold-calling ) : severe new regulations against cold-calling. ▶noun ( cold call ) an unsolicited call of this kind.
cold-call ▶verb [ with obj. ] make an unsolicited visit or telephone call to (someone ), in an attempt to sell goods or services. ▶noun ( cold call ) an unsolicited visit or telephone call made by someone trying to sell goods or services. DERIVATIVES cold-caller noun