# Progressive keeps one call per free agent · Sources and go deeper



## Sources and go deeper

- [Outbound product page](https://www.five9.com/products/capabilities/outbound-contact-center). vendor. last checked 2026-10.
- [Dialer product page](https://www.five9.com/products/capabilities/dialer-system). vendor. last checked 2026-10.
- confirm. Five9 publishes both 'one customer per available agent' and 'adaptively control dialing pace' for progressive. This lab does not know which sentence the current build implements. last checked 2026-10.