1. Apparatus associated with an outbound contact center, comprising: a hardware processor; computer memory storing computer program instructions executed by the hardware processor to export, as a set of one or more web pages, a call pacing configuration tool, the call pacing configuration tool enabling receipt of data defining a call pacing strategy that enables control over pacing of individual sub-campaigns when multiple sub-campaigns are running; and the computer memory storing further storing computer program instructions to execute a communications campaign using the call pacing strategy to pace individual sub-campaigns when the multiple sub-campaigns are running.