# If/Else is two ways. Case is more · Sources and go deeper



## Sources and go deeper

- [If/Else module](https://documentation.five9.com/bundle/ivr-admin/page/ivr-admin/modules/ifelse-module.htm). vendor. last checked 2026-10.
- [IVR modules](https://documentation.five9.com/bundle/ivr-admin/page/ivr-admin/modules/_ch-modules.htm). vendor. last checked 2026-10.
- [Interactive voice response](https://en.wikipedia.org/wiki/Interactive_voice_response). wikipedia. last checked 2026-10.