To enable call object purging, enable the agent rule and set the scheduled activity interval.
In the navigation panel of Dev Studio, click Records.
To enable call object purging, select and click the Pega Call agents rule (in the Pega-CTI ruleset).
In the Agent-Wide Settings section, enter the Interval to a value (in seconds) that is lower than the configured age. Older call objects will be deleted each time the agent executes.