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Synthpop’s voice agent runs real patient phone calls at scale — 3,000+ patient calls a day and growing; the first healthcare AI agent in Google’s Gemini Enterprise Agent Gallery, running on Vertex AI. This page is the catalog of what it can do on a call, with the guardrail for each capability stated alongside it.
Every capability below ships as part of the voice agent engagement channel and is enabled per organization during onboarding. Availability of any specific capability for your organization is a provisioning question for your Synthpop contact, not something you toggle yourself.

Inbound and outbound

One Task model handles both directions of a call: the same voice agent places outbound calls to patients and answers inbound calls from them. Whichever direction a call runs, it yields a transcript and summary (and, where provisioned, a call recording) returned on the Task, so the outcome reads the same way regardless of who dialed whom.

Speaks your patient’s language

The voice agent is language-agnostic by design: it isn’t a separately translated flow per language, it’s one flow that can run in any language. en-US and es-MX are live in production today, and the production set expands via per-org provisioning as each additional language clears quality review — ask your Synthpop contact which languages are currently available for your organization.
  • Every call produces a native-language transcript plus a best-effort English translation.
  • FAQ answering and other tool integrations stay English regardless of the call’s spoken language.

Answers caller questions (FAQ)

The voice agent can field a caller’s free-form questions during the call. It is grounded in your FAQ and refuses to fabricate an answer — but that grounding is self-graded, not zero-hallucination. FAQ answering is best suited to a small FAQ (not a large knowledge base) and is English-only today.
  • FAQ edits you make take effect immediately on the next call — there is no separate publish or redeploy step.

Collects a co-pay on the call

The voice agent can collect an end-of-call co-pay over the phone using secure DTMF entry: card data never reaches the model or the flow engine. The autopay gate fails closed — if it can’t confirm the charge should proceed, it doesn’t proceed. This capability is scoped to order-creation co-pays, not standing balances or general bill-pay. See Payment security for how card data is isolated from the rest of the call.

Respects contact limits

Outbound dialing is bounded by guardrails on EVA’s own dialing: at most once per day, at most three times per rolling seven days, with an optional local-time calling window. A call that would exceed the cap isn’t placed — the Task surfaces the reason instead — see the voice agent’s how-to page for exactly how that reason shows up.

Speaks required disclosures verbatim

Where a disclosure is legally required, the voice agent speaks the exact wording it was given for that language — verbatim, not paraphrased — so the same disclosure reads identically on every call in that locale.

Works with your systems

Flows can look up or act on your organization’s systems through a per-org integration, so a call can reflect live data from your side rather than only what’s on the Task. The model never sees raw backend PHI — see PHI-safe integrations for how that boundary is enforced.

Improves over time

Call behavior can be A/B-tested and tuned without a redeploy, so how a flow performs on real calls feeds back into how it’s tuned — without a release cycle in between.

Every call is auditable

Every call leaves a record built for audit, not reconstructed after the fact — see Auditability for what that record contains and how it’s produced.

Where to go next

Voice agent

The API contract for creating and reading voice Tasks.

Trust, compliance & auditability

The reviewed-flow, audit, and PHI-safety story behind these capabilities.

Patient engagement

Where voice fits among Synthpop’s engagement channels.

The patient journey

How engagement closes the loop after intake and coverage.