Ring Pools (Dynamic Number Insertion)

Ring Pools and Number Pools Are the Same Thing

The platform's navigation and pages label this feature "Number Pools" (the sidebar link is Number Pools and the creation page is titled "New Number Pool"), while the feature is historically known as a "Ring Pool" and its page addresses still use that name. Both terms refer to the same dynamic-number-insertion feature.

How It Works

A Ring Pool is a collection of tracking numbers used to deduplicate web visitors. When a visitor lands on a tracked page, JavaScript fetches a number from the pool and swaps it into the page's display. Each visitor session gets a different number from the pool. When the visitor dials, the Ring Pool maps the dialed number back to the visitor session and fires the offer's call flow with full visitor attribution.

Number Tracking

The platform manages the lifecycle of number assignments: which number is currently shown to which session, when a number is released back to the pool, and how long a session's number is held before reassignment. A number is re-used across sessions once the hold timeout expires, but not while a session is live.