AI voice agents inside RingCentral RingCX

How does a RingCX call reach a Synthflow agent?
- A call reaches the IVA node in your RingCX workflow. In Workflow Studio, the IVA node sends the call to your Synthflow agent over SIP. A JavaScript node before it passes the caller's context: the caller's number (ANI), the dialed number (DNIS), the call ID and any field you add, such as an account ID.
- The Synthflow agent answers and acts. RingCX carries the context in the X-Bot-Context SIP header, so the agent can use each field in its greeting, its prompt and its actions. It follows its prompt and runs its actions while the caller is on the line, for example booking an appointment or collecting the details your team needs.
- The RingCX Handoff action returns the call. When its condition is met, such as "When the customer says goodbye", the action ends the Synthflow IVA session and returns the call to the RingCX workflow, with a payload of the fields you define: the caller's intent, an account number, an appointment preference.
- Your workflow takes it from there. The call continues from the IVA node's Success connection. A JavaScript node after the IVA node reads the payload, and your workflow routes the call with RingCX's own nodes.
What stays in RingCentral?
What does setup take?
- Admin access to RingCX.
- A Synthflow Enterprise plan with a deployed agent.
- A RingCX workflow channel number for the agent.
RingCX or RingEX: which RingCentral integration fits?
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How is Synthflow sold?
What is Synthflow?
Questions about Synthflow and RingCentral
Does Synthflow integrate with RingCentral?
Yes. Synthflow runs its AI voice agents inside RingCentral RingCX voice queues as an Intelligent Virtual Agent (IVA): RingCX sends calls to the agent over SIP, and the RingCX Handoff action returns each call to the RingCX workflow. RingCX is one of Synthflow's Tier 1 telephony integrations, which Synthflow engineering tests and supports.
Which RingCentral products does Synthflow work with?
RingCX, RingCentral's contact center platform, through its native IVA integration. RingEX, RingCentral's business phone system, connects through a legacy SIP-extension setup that is being sunset. For RingEX, Synthflow recommends forwarding your number over the PSTN to a Synthflow number or a Twilio number.
Can the agent make outbound calls through RingCentral?
The RingCentral integrations are for inbound calls: RingCX routes voice queue calls to the agent, and a RingEX SIP extension can't place outbound calls. For outbound calls, use a Synthflow number or a Twilio number.
What does the RingCX integration need?
Admin access to RingCX, a Synthflow Enterprise plan with a deployed agent, and a RingCX workflow channel number. You import that number into Synthflow with Phone Provider set to RingCX, create an IVA integration under AI Tools in RingCX, and add the IVA node to a workflow in Workflow Studio.
Can it run in the US or EU region?
Yes. RingCX sends calls to the SIP address of your Synthflow workspace's region, Global, US or EU, which the imported number's Origination URI shows. You choose the region when you create the workspace.
What happens when a caller needs a person?
The agent returns the call to your RingCX workflow, and RingCX routes it. Synthflow doesn't start transfers on RingCX trunks itself: the RingCX Handoff action ends the IVA session, and your workflow's own queue and skill nodes take the caller to your people.