Outbound IVR Software Without the LLM Tax
A no-code IVR campaign builder for short, predictable outbound calls. Pre-rendered audio in ten languages, positive / negative / timeout branching, sub-500ms turn latency — starting from $0.02 per call*. Final price varies with call duration, language, voice provider, and destination country.
Early-access pricing locked in for 12 months for beta participants.
Key Takeaways
- No LLM in the call path — every line the bot says is pre-rendered, so per-call costs land at $0.02–$0.06 versus $0.14–$0.42 for an AI voice agent.
- Ten languages out of the box — Hindi, Gujarati, Spanish, English, and seven more. Build the flow once, regenerate audio per language.
- Local call recording — every call captured as a stereo WAV on your tenant's volume. No S3, no per-minute storage fees, inline playback.
What Is Outbound IVR?
Outbound IVR (Interactive Voice Response) is software that places phone calls from a contact list, plays pre-recorded audio prompts, and routes the call based on what the caller says or which key they press. Unlike a robocall, which blasts the same message at everyone, modern outbound IVR is conversational — it asks the caller a question, listens, and picks the next prompt from a flow tree the operator defined ahead of time.
The distinguishing feature is that every line the bot says is rendered to an audio file at build time. There is no live language model in the call path. When the caller says "yes" or presses 1, the runtime hits a fast keyword classifier, looks up the next step, and plays the next WAV. Total latency stays under 500 milliseconds even on cheap VoIP trunks, and per-call costs stay an order of magnitude below an LLM-driven voice agent.
Read our full guide: Outbound IVR Software — A Practical 2026 Guide.
How It Works
From script to first dial in under an hour.
Describe your campaign
Write your call script in plain language: greeting, the question you want answered, what to do for each possible answer. Or pick a template from our library.
Generate the flow
Gemini 1.5 Pro turns your script into a flow tree with branches, keyword lists, and timeout retries. Review and tweak in the visual builder.
Render the audio
Pick a TTS voice (or use ElevenLabs audio tags like [excited] [sighs] for a more human delivery) and render every prompt to WAV. Re-render anytime you change the script.
Dial your list
Upload contacts as CSV or pull from your CRM. Set parallel call count and time-of-day windows. Launch — calls are recorded, transcripts captured, results synced back to your CRM.
What's Included
Everything you need to run high-volume outbound IVR campaigns.
Visual Flow Builder
Drag-and-drop tree of audio steps with positive / negative / timeout branching. No code, no JSON, no dialplan hacking. Build a 20-step flow in 15 minutes.
Pre-Rendered Audio
Every line the bot says is rendered to a WAV at build time. No LLM in the call path means deterministic timing and sub-500ms turn latency on the cheapest VoIP trunks.
Positive / Negative / Timeout Branching
Three branch types per node, each with its own keyword list. Speech routing + DTMF input both work. Generic "yes / no" falls through to a fast LLM classifier so you never hang up mid-call.
Ten-Language Audio
Native synthesis in English, Spanish, French, German, Hindi, Gujarati, Italian, Portuguese, Russian, and Hebrew. Build the flow once, regenerate audio per language in under five minutes.
Generate-with-AI Flow
Paste your campaign script in plain language, pick a TTS voice, and let Gemini 1.5 Pro build the entire flow + render the audio. Beats GPT-4o-mini handily on Indic languages.
Local Call Recording
Every call captured as a stereo WAV (caller left, bot right) and stored on your tenant's volume — not S3. Inline playback from the call detail page. No per-minute storage fees.
Twilio + Asterisk Runtimes
Run on Twilio for instant deploys or Asterisk for sub-500ms latency and full SIP control. Same flow definition works on both — pick the runtime that fits your trunk.
Self-Learning Steps (Optional)
When a caller says something your flow does not handle, the runtime can auto-add a "learned" step for operator approval. Every learned step is audited and reversible.
Built-In Compliance
DNC list scrubbing, calling-window enforcement, mandatory disclosure on the start node, and full call logs for the auditor. STIR/SHAKEN attestation supported on supported trunks.
IVR or AI Voicebot?
Pick the right tool for the call.
| Capability | Outbound IVR | AI Voice Agent |
|---|---|---|
| Latency per turn | Under 500ms | 350–700ms |
| Per-call cost | $0.02–$0.06 | $0.14–$0.42 |
| Handles unscripted questions | Falls through to operator | Answers in real time |
| Compliance audit trail | Every prompt is a fixed WAV | Per-turn transcript review |
| Best for | Short, predictable scripts | Open-ended conversations |
Already have an AI voicebot use case? Check out our Outbound AI Call product.
Where Outbound IVR Wins
Short, predictable calls where the conversation fits on a napkin.
Appointment Reminders & Confirmations
Pre-built flow that reads time, date, and provider from your calendar API, asks the caller to confirm/reschedule, and writes the response back. 30–50% no-show reduction in the first month.
Payment-Due Reminders
Friendly automated nudges with options to pay over the phone (PCI-redacted), receive a payment link by SMS, or be transferred to billing.
Opt-In & Survey Calls
Short, structured calls with sub-cent per-call costs. NPS and CSAT response rates 4–5x higher than email.
Re-Engagement Campaigns
Win-back calls to lapsed customers and aged leads. Branches based on the caller's current interest level — no human SDR needed.
Emergency Notifications
Storm warnings, service outages, school closures. Blast-friendly, audited, and faster than email.
Bilingual Markets (Hindi, Gujarati, Spanish)
Generate the flow once, render audio per language, route incoming contacts by preferred-language field. Code-mixed speech handled with trilingual keyword lists.
Frequently Asked Questions
When does TurboCall Outbound IVR launch?
We are in private beta with select customers as of May 2026. Public launch is targeted for Q3 2026. Join the waitlist to get early-access pricing and a seat in the next beta cohort.
How is Outbound IVR different from the existing Outbound AI Call product?
Outbound AI Call uses an LLM in the call path — every response is generated live by GPT-4o or Claude. Outbound IVR uses pre-rendered audio along a flow tree you define ahead of time. IVR is cheaper, faster, and easier to audit for predictable scripts; the AI agent is better for open-ended conversations. They are complementary products, not replacements.
Can I migrate my existing IVR system?
Yes. The flow builder accepts existing Twilio Studio flows, AWS Connect contact flows, and most spreadsheet-based IVR scripts. Audio files can be uploaded as WAV or re-rendered via TTS. Most migrations from legacy IVR systems take under a day.
What languages will be supported at launch?
Ten at launch: English (US), Spanish, French, German, Hindi, Gujarati, Italian, Portuguese, Russian, and Hebrew. We are testing Tamil and Marathi for the next release. Build the flow once, regenerate audio per language in minutes.
Are calls recorded?
Yes, by default. Every call is captured as a stereo WAV (caller on the left channel, bot on the right) and stored on your tenant's volume — not in a third-party S3 bucket. Inline playback from the call detail page. Retention is configurable per campaign.
Is Outbound IVR TCPA compliant?
Yes. DNC list scrubbing runs automatically before every campaign, calling windows enforce 8am–9pm local-to-recipient by default, and the disclosure prompt is mandatory on the start node. Full audit logs are available for every call.
How much will it cost?
Pricing TBD — we are targeting $0.02–$0.06 per completed call all-in (platform + telephony + TTS), with a flat monthly platform fee that scales with volume. That is roughly 80–95% cheaper than running the same campaign on an LLM-driven voicebot. Beta participants get early-access pricing locked in for 12 months.
Be First in Line When Outbound IVR Goes Live
Waitlist members get early-access pricing, priority onboarding, and a guaranteed seat in the next beta cohort.