# The domain is the tenant · Ecosystem



## Sources and go deeper

- [Planning your implementation](https://documentation.five9.com/bundle/basic-admin/page/basic-admin/intro/planning-your-implementation.htm). vendor. last checked 2026-10.
- [Skill groups](https://documentation.five9.com/bundle/basic-admin/page/basic-admin/skill-groups/_ch-skill-groups.htm). vendor. last checked 2026-10.
- confirm. This lesson's CUCM comparison is a teaching map. Five9 does not publish it as a migration product. last checked 2026-10.