Voice AI Screening Tool: How It Works for HR Teams

Bolti is a voice AI platform for building production-ready phone agents. One of its most practical applications is as a voice AI screening tool — automating the first round of candidate interviews over a regular phone call, without any app download or video link required.

What Is a Voice AI Screening Tool?

A voice AI screening tool is software that conducts structured phone interviews with job candidates automatically. It asks pre-set questions, listens to answers, handles follow-ups, and logs responses — the same way a human recruiter would in a first-round call, but at any hour and at any volume.

For HR teams hiring at scale — 50 candidates a week, or 500 — this removes the bottleneck of manually scheduling and running every initial call.

How Does Bolti Work as an HR Screening Agent?

Bolti's voice agents run on actual phone calls. Candidates receive an outbound call from your number, speak naturally, and get screened in real time. There is no web form, no chatbot, no video interface.

Here is what happens on a typical screening call:

1. Outbound call placed — Bolti dials the candidate at the scheduled time using your number or a Bolti number.
2. Agent introduces itself — in the candidate's preferred language (Hindi, English, Tamil, Marathi, and 80+ others).
3. Structured questions asked — notice period, current CTC, expected CTC, location preference, relevant experience.
4. Answers captured — the agent listens, handles interruptions, and asks follow-ups based on what the candidate says.
5. Tool call logged — Bolti can push the structured response to your ATS or CRM via an HTTP tool call at the end of the call.
6. Summary available — call transcript and extracted data appear in the Bolti dashboard.

You define the questions and logic once. Bolti runs the calls.

What Happens When a Candidate Goes Off-Script?

Bolti handles real conversation — not a rigid IVR menu. If a candidate asks a clarifying question mid-screening, the agent answers it and returns to the flow. If they ask to speak to a human, the built-in Transfer call tool hands the call off to your recruiter. Sub-second turn-taking and real interruption handling mean the call feels like a conversation, not a phone tree.

Why Phone Calls, Not Forms or Chatbots?

Phone calls have a much higher completion rate than screening forms for blue-collar, field sales, and frontline roles. Candidates do not need a smartphone, an email address, or reliable internet — just a phone. For hiring in Tier 2 and Tier 3 cities across India, this matters.

A few concrete differences:

Method	Completion rate	Language flexibility	Requires internet
Google Form	Low–medium	Limited	Yes
WhatsApp chatbot	Medium	Moderate	Yes
Voice AI phone call	High	80+ languages	No

What Can the Screening Agent Actually Do?

Bolti agents are not limited to asking questions. Using tool calling, the agent can take actions mid-call or at the end:

• Look up candidate data — pull the candidate's profile from your ATS before the call starts, so the agent already knows their name and applied role.
• Push screening results — POST structured data (notice period, CTC, location) to your HR system the moment the call ends.
• Schedule a follow-up — use the built-in Schedule callback tool to book the next round without human intervention.
• Transfer to a recruiter — if a candidate is a strong match or requests a human, the call transfers live.
• End the call cleanly — the built-in End call tool closes the conversation politely when screening is complete.

Each tool is defined once in your Bolti workspace and assigned to your screening agent. The same lookup_candidate or push_screening_result tool can be reused across multiple agents — your screening agent, your offer-follow-up agent, your onboarding agent — without duplicating configuration.

Multilingual Screening at Scale

Bolti supports Hindi, Marathi, Tamil, Telugu, Bengali, Gujarati, English, and 80+ global languages. You can run a single screening campaign that calls candidates in Mumbai in Marathi, candidates in Chennai in Tamil, and candidates in Bengaluru in English — all from the same agent configuration, with language routing based on candidate data.

Voices are powered by providers including SarvamAI (best-in-class for Indic languages), Cartesia, ElevenLabs, and others. Each voice is previewable before you deploy — you hear exactly what candidates will hear.

How Do You Set Up a Screening Agent on Bolti?

Setup does not require engineering. Here is the typical path:

1. Create an agent in the Bolti dashboard and write your screening script as a prompt.
2. Choose a voice — pick from the voice card grid, filter by language and gender, preview before selecting.
3. Add tools — enable Transfer call, End call, and any HTTP tools that connect to your ATS.
4. Upload your candidate list — phone numbers, names, applied roles.
5. Launch the campaign — Bolti places calls and logs results in real time.

Every action you take in the dashboard is also available via the REST API, so your engineering team can automate campaign creation from your existing hiring pipeline if needed.

What Does It Cost?

Bolti is priced at ₹7 per minute on a pay-as-you-go basis. A 5-minute screening call costs ₹35. If you screen 200 candidates a week, that is ₹7,000 — compared to the recruiter hours required to run those calls manually.

New accounts get 50 free minutes to test with real calls before committing to any spend. There are no monthly minimums on the pay-as-you-go plan.

For teams running high volumes, enterprise contracts with on-premises deployment, PII redaction at runtime, and DPDP-aligned data handling are available.

Is a Voice AI Screening Tool Right for Your Hiring Process?

It works best when:

• You are screening more candidates than your recruiter team can call in a day.
• Your roles are high-volume and repeatable (sales, support, field ops, logistics, BPO).
• Candidates are comfortable on phone calls but may not complete web forms.
• First-round screening questions are structured and consistent across candidates.

It is less suited for senior or executive hiring, where the screening conversation is exploratory and highly variable.

See how other teams use Bolti for HR and other use cases to get a sense of what production deployments look like.

Frequently Asked Questions

What is a voice AI screening tool?

A voice AI screening tool is software that automatically conducts first-round candidate interviews over a phone call. It asks structured questions, listens to answers, handles follow-ups, and logs results — replacing manual recruiter calls for high-volume hiring.

Can Bolti screen candidates in Hindi or regional Indian languages?

Yes. Bolti supports Hindi, Marathi, Tamil, Telugu, Bengali, Gujarati, English, and 80+ other languages. You can route candidates to the correct language automatically based on their profile data, all within a single screening campaign.

How much does it cost to run screening calls on Bolti?

Bolti charges ₹7 per minute on a pay-as-you-go basis. A typical 5-minute screening call costs ₹35. New accounts receive 50 free minutes to test before any payment is required.

Can the screening agent push results to our ATS automatically?

Yes. Using Bolti's HTTP workspace tools, the agent can POST structured screening data — notice period, CTC, location preference — to any ATS or HR system with an API, at the end of each call.

Does the candidate need to download an app or have internet access?

No. Bolti screening calls are standard outbound phone calls. Candidates only need a working phone number — no app, no internet connection, no email address required.