Call parking refers to the business telephone feature of leaving a call for someone else with access to the same line to pick it up instead. This is referred to as «parking» the call.
This system operates purely on a private call network that can only be accessed by authorized users. Multiple agents are available to pick up a parked call. This differentiates call parking from call forwarding, which is a directed action that reroutes a call to one representative in particular.
Call parking is a useful feature if you want to reduce the number of times a prospective client contacts your business and receives a busy signal or voicemail.