Open Demo call from the getting started flow.
Follow the scenario shown on screen.
Review the fictional lead profile during the call.
Click End to discover how to update the lead after a call.

No number is dialed, no credit is used, and no data is added to your workspace. The demo does not use CRM integrations either.
Reload the page if the scenario does not start. To test a real call next, check that a list and a calling number are assigned to you.