Voice AI Screening Tool: How It Works for HR Teams

A voice ai screening tool is an automated software system that conducts initial phone interviews with job applicants to filter candidates before human recruiters step in. Bolti is an India-first, multilingual voice AI platform for phone agents that allows HR teams to build and deploy these automated screening agents for just ₹6/minute, with a 50-minute free trial to get started.

What Is a Voice AI Screening Tool and How Does It Benefit HR?

A voice AI screening tool is an automated system that conducts first-round phone interviews with job applicants without human recruiter intervention. It dials candidates, asks structured screening questions, processes verbal responses in real time, and logs the structured data directly back into your Applicant Tracking System (ATS).

For HR teams managing high-volume recruitment in India—such as hiring 500 delivery executives in Mumbai or 200 customer support agents in Bengaluru—manual calling is a massive bottleneck. Instead of recruiters spending 10 hours a day chasing candidates who do not pick up, an automated voice AI screening tool like Bolti can place hundreds of concurrent calls. It handles the entire initial conversation, filtering out unqualified candidates before a human recruiter ever opens a resume. This reduces time-to-hire from weeks to hours and ensures 100% of applicants get an immediate response.

How Does Bolti Run Automated Screening Calls?

Bolti runs automated screening agents directly over standard phone networks, making it easy to reach candidates without requiring internet access or app downloads. The agent calls the candidate, conducts a natural conversation in their preferred language, and automatically pushes the structured results directly to your Applicant Tracking System (ATS).

Here is how a typical screening call flows using Bolti's dedicated infrastructure:

• Outbound call placed: Bolti dials the candidate at a scheduled time or when they self-book a slot via a scheduling link.
• Agent introduces itself: The agent greets the candidate using their name, pulled dynamically via the {{ candidate_name }} template variable.
• Structured questions asked: The agent asks custom questions defined for that specific role, such as notice period, current CTC, and location preferences.
• Natural conversation and interruption handling: The agent listens to answers, handles interruptions naturally with sub-second latency, and asks follow-ups.
• Call logged and ended: The agent uses the built-in cut_call tool to end the call cleanly, then sends the transcript and structured data to your ATS.

What is the HR Screening Module and How Do You Set It Up?

The HR Screening module is a dedicated dashboard interface in Bolti that turns job descriptions and candidate resumes into structured, automated phone screens. You upload a PDF or text resume, and Bolti parses the document, extracts key details, and prepares the voice agent with candidate-specific context before dialing.

This module simplifies the setup process into a repeatable pipeline:

• Create a Role: In the dashboard under Agents → HR Screening, click + New Role. Define a role title (e.g., "Senior Backend Engineer") and paste the full job description (JD).
• Upload Candidate CVs: Bolti parses the CVs and uses an LLM to generate "refined pointers"—bullet-point summaries of each candidate's experience.
• Map Template Variables: The screening agent's prompt uses Jinja-style braces to map four critical variables: {{ candidate_name }}, {{ jd_text }}, {{ custom_questions }}, and {{ candidate_details }}. This ensures the agent knows exactly who it is calling and what to ask.
• Launch Outreach: You can schedule outbound calls for specific times or send a scheduling link via WhatsApp or email so candidates can self-book their screening slot.

How Do You Handle Candidate Outreach and Scheduling?

Bolti handles candidate outreach by allowing recruiters to either schedule outbound calls directly or send automated scheduling links via WhatsApp or email. Candidates can select their preferred time slot, and Bolti's automated voice agent will dial them the moment their scheduled slot arrives.

You can watch the outreach status update live on the candidates table in your dashboard. The status transitions through a clear pipeline:

• None: Candidate is added to the role but no outreach has been initiated.
• Link Sent: The scheduling link has been sent to the candidate via email or WhatsApp.
• Call Scheduled: The candidate selected a slot, and the outbound call is booked.
• Call Completed: The screening call has finished, and the data is ready for review.

This system eliminates the back-and-forth scheduling tag and ensures your recruiters only spend time speaking with candidates who are qualified and genuinely interested.

How Do You Configure Voices and Languages for Indian Candidates?

You configure your screening agent's voice using Bolti's Voice tab, which features a curated grid of voice cards from top TTS providers like SarvamAI, ElevenLabs, and Cartesia. This allows you to select highly realistic, localized voices that match your candidates' preferred languages and regions.

• Voice Card Grid: Each card in the dashboard shows the voice name (e.g., Aria, Marcus, Anushka), a gender badge, language, characteristics (warm, professional, energetic), and the provider on hover.
• Live Previews: Click the "play" button on any card to stream a 3-second live preview from the actual provider. The preview uses native-language sample text (like Hindi for Hindi voices) so you can test the pronunciation.
• Filtering Voices: You can search by name or voice ID, and filter by gender (Male/Female) or language (English, Hindi, Marathi, Tamil, Telugu, etc.) to find the perfect match.
• Multilingual Support: Bolti supports 80+ global and Indian regional languages, allowing your voice ai screening tool to seamlessly switch to the candidate's preferred tongue.

How Do You Connect Your Screening Agent to Your ATS or HRMS?

You connect your screening agent to external databases, ATS, or HRMS platforms using Bolti's Workspace HTTP Tools framework. This allows the agent to trigger API calls mid-call or post-call to look up candidate details, update application statuses, or log structured screening scores.

• Create a Reusable Tool: Go to Tools in the left nav of your dashboard and click New Tool. Define a tool name (like push_screening_result or lookup_candidate) using snake_case.
• Configure the Endpoint: Set the Endpoint URL, Request Method (GET, POST, PUT, etc.), and Timeout (ranging from 1000ms to 120000ms).
• Set Up Authorization: Use the typed picker to securely configure Bearer Tokens, Basic Auth, or API Key Headers.
• Define Request Body & Schema: Use the structured editor to define properties without writing raw JSON. Bolti automatically formats the payload.
• Assign to Agents: Once saved, you can assign this tool to any screening agent in your workspace. The LLM will automatically decide when to call the tool based on its name and description.

Why Are Voice AI Phone Calls Better Than Web Forms or Chatbots?

Voice AI phone calls achieve significantly higher completion rates than web forms or text-based chatbots because they demand immediate attention and do not require active internet access. Candidates in Tier 2 and Tier 3 Indian cities often prefer speaking over typing, making voice calls highly accessible.

While tools like Google Forms or WhatsApp chatbots are frequently ignored, a direct phone call commands attention.

• Google Forms: Low completion rates, requires active internet, and cannot verify spoken language skills in real time.
• WhatsApp Chatbots: Moderate completion rates, requires a smartphone, and lacks the personal touch of a voice conversation.
• Voice AI Phone Calls: High completion rates, works on any basic mobile phone, tests spoken communication skills instantly, and supports 80+ languages.

How Does Bolti Compare to Alternative Voice AI Platforms?

Bolti is built specifically for production-grade telephony, offering sub-second latency and robust interruption handling that alternative platforms often struggle to deliver. When businesses compare Bolti to platforms like Bolna AI or Ringg AI, they choose Bolti for its deep integration of Indian languages and developer-friendly API.

Unlike generic wrappers, Bolti provides telephony-grade noise cancellation, which is essential when calling candidates who may be on a noisy street or public transport in Mumbai or Delhi. Additionally, every dashboard action is backed by a clean REST API, allowing your developers to trigger screening calls programmatically from your existing HRMS.

Set Up Your First Voice AI Screening Tool in Under 10 Minutes

You can set up your first automated voice ai screening tool in under 10 minutes to eliminate manual scheduling bottlenecks. Start your free trial on Bolti today with 50 free minutes of call time, or review our pay-as-you-go pricing starting at just ₹6 per minute.

See how other Indian businesses use Bolti to scale their operations and improve candidate experience. You can also explore our custom function calls and use cases to design highly tailored workflows for your recruitment team.

Frequently Asked Questions

What is a voice AI screening tool?

A voice AI screening tool is an automated system that conducts initial phone interviews with job applicants. It dials candidates, asks structured screening questions, processes verbal responses in real time, and logs the structured data directly back into your Applicant Tracking System (ATS).

How much does Bolti cost?

Bolti costs ₹6 per minute on a pay-as-you-go basis. There are no setup fees or monthly minimums, and you get 50 free minutes when you sign up to test the platform.

Does Bolti support Indian regional languages?

Yes, Bolti supports 80+ global and Indian regional languages, including Hindi, Marathi, Tamil, Telugu, Gujarati, Bengali, and English. You can easily configure your agent's voice and language settings in the Voice tab.

Can Bolti integrate with my existing ATS or HRMS?

Yes, you can connect Bolti to any ATS, HRMS, or external database using Workspace HTTP Tools. This allows your voice agent to trigger API calls mid-call or post-call to look up candidate details, update application statuses, or log structured screening scores.