> For a complete page index, fetch https://docs.synthflow.ai/llms.txt. For full documentation content, fetch https://docs.synthflow.ai/llms-full.txt. ## Five9 Handoff action ![Five9 Handoff action configuration in Synthflow](https://storage.googleapis.com/granular-changelog/doc-images/five9_handoff_changelog.png) The **Five9 Handoff** action returns a call from your agent to your Five9 workflow, passing routing context as X-Headers on the SIP BYE. The [Five9 integration guide](/sip-with-five9) covers the full AI Agent Connect setup, from onboarding to the data exchanged in each direction. Available on the Enterprise plan. Contact your account manager to activate it.