What each term actually means
Native calling
Native calling means telephony is a component of the CRM rather than a neighbour of it. The rep dials from the record, the CRM vendor provides the call path, and the call data is written directly into the same database as the contact and the deal. Nothing has to travel between two systems, because there is only one.
A third-party dialer
A third-party dialer is a separate telephony platform, joined to the CRM by an integration, a browser extension or a click-to-dial link. It has its own admin panel, its own user list, its own recording storage and its own reporting. The CRM learns about calls second-hand, through whatever the integration chooses to send.
