# CTI is a named API, not a vibe · Sources and go deeper



## Sources and go deeper

- [APIs and SDKs](https://www.five9.com/platform/integrations-and-ecosystem/apis-and-sdks). vendor. last checked 2026-10.
- [Automatic call distributor](https://en.wikipedia.org/wiki/Automatic_call_distributor). wikipedia. last checked 2026-10.
- confirm. Salesforce screen pop, click-to-dial, and package versions were not on the pages this chapter could read. last checked 2026-10.