Automated Payment Reminder Calls: NBFC Collections with Voice AI

For Indian Non-Banking Financial Companies (NBFCs), collection is a high-volume, high-friction operation. Millions of borrowers require timely reminders for their monthly EMIs, yet deploying manual calling agents to contact every account is expensive, slow, and difficult to scale.

Bolti, a voice AI platform for building production-ready conversational phone agents, helps NBFCs automate this process. Operating with sub-second turn-taking, real interruption handling, and telephony-grade noise cancellation, Bolti allows financial institutions to run automated payment reminder calls at a fraction of the cost of manual operations. With pricing starting at just ₹6/minute pay-as-you-go and a free trial containing 50 minutes, you can deploy a scalable collection pipeline in under an hour.

How do automated payment reminder calls help Indian NBFCs?

Automated payment reminder calls resolve the primary operational bottleneck for NBFCs: reaching thousands of delinquent or pre-due borrowers simultaneously without hiring massive call centers.

By leveraging conversational voice AI, NBFCs can execute outreach campaigns that sound natural, understand local languages, and handle customer pushback. Unlike rigid Interactive Voice Response (IVR) systems that only play a recorded message, Bolti's voice pipeline runs a continuous loop of real-time transcription, LLM processing, and speech synthesis.

This architecture allows the AI agent to:

• Negotiate payment dates: If a borrower says, "I cannot pay today, but I will pay this Friday," the agent understands the context, logs the promise to pay, and schedules a follow-up.
• Handle interruptions: If a borrower cuts the agent off to say, "I already paid this morning," the agent stops speaking immediately, acknowledges the update, and asks for the transaction reference.
• Deliver localized multilingual outreach: Reach borrowers in their preferred language, whether it is Hindi, Marathi, Tamil, Telugu, Bengali, Gujarati, English, or any of the 80+ global languages supported natively.

The Architecture of a Voice AI Collection Call

When you trigger an outbound call, Bolti orchestrates a complex, low-latency loop. To make the agent feel human, several key technologies run in parallel during every second of the conversation:

1. Telephony Noise Cancellation: Real phone networks in India are often noisy. Bolti strips out background traffic, wind, and line static so that the speech-to-text engine gets clean audio.
2. Voice Activity & Turn Detection: The system accurately identifies when the borrower has finished speaking, ensuring the agent does not awkwardly talk over them.
3. Streaming Pipeline: Speech-to-text (STT), the Large Language Model (LLM), and text-to-speech (TTS) all stream audio concurrently. This keeps latency sub-second, meaning the agent responds almost instantly when the borrower stops talking.

Because of this architecture, borrowers do not feel like they are talking to a robotic script. They engage in a fluid conversation, leading to higher resolution rates for early-stage delinquencies.

Setting Up Automated Campaigns at Scale

For bulk outreach, looping a one-off API endpoint is inefficient. Bolti provides a dedicated Batch Calling engine designed to handle thousands of concurrent calls seamlessly.

Dashboard → Campaigns → New Campaign → Bulk

You can configure two distinct types of campaigns depending on your collection strategy:

• Bulk Campaigns: Dial a list of thousands of borrowers once at a controlled rate. The system automatically paces the dials, respecting your rate limits and telephony capacity.
• Recurring Campaigns: Set up a cron schedule to automatically call specific segments (e.g., dial late-paying accounts every Tuesday at 10:00 AM IST).

If you use dynamic variables in your system prompts, you can pass custom data for each contact—such as their name, outstanding EMI amount, and due date—directly via the API payload:

{
  "to_number": "+919876543210",
  "agent_phone_number_id": "phone_number_id",
  "variable_values": {
    "name": "Amit",
    "amount_due": "₹4,500",
    "due_date": "July 15"
  }
}

When Amit answers, the agent will greet him by name, state his exact outstanding balance of ₹4,500, and discuss payment arrangements naturally.

Integrating with Your Existing Systems (BYOC & API)

Most financial institutions already have preferred telecom partners and established CRM or Loan Management Systems (LMS). Bolti is built to fit into this existing stack rather than replacing it.

• Bring Your Own Carrier (BYOC): You can register your existing SIP trunks from providers like Exotel, Plivo, Twilio, or Vobiz. This allows you to retain your existing caller IDs and pre-negotiated telecom rates.
• Open REST APIs: Every action available on the Bolti dashboard can also be executed via our open API. You can trigger calls directly from your LMS when a payment is missed and ingest call transcripts and outcomes back into your system via real-time webhooks.
• Enterprise-Grade Security: Bolti aligns with strict data security standards. We offer PII redaction in runtime, SSO via OIDC/SAML, on-premises deployment options, and DPDP-aligned contracts to keep borrower data safe.

Try Bolti for NBFC Collections

Automate your first-mile collections, reduce your Days Past Due (DPD), and lower your operational costs. Spin up your first conversational agent in under 10 minutes and experience the sub-second response times for yourself.

Create your free account today to get 50 free calling minutes, or explore our flexible ₹6/minute pay-as-you-go pricing to scale your outreach program.

Frequently Asked Questions

Can Bolti agents speak regional Indian languages?

Yes. Bolti supports over 80 languages, including Hindi, Marathi, Tamil, Telugu, Bengali, Gujarati, Kannada, and English, allowing you to converse with borrowers in their native languages.

How does Bolti handle customers who interrupt the AI agent?

Bolti features real-time interruption handling and voice activity detection. If a borrower cuts off the agent mid-sentence, the agent stops speaking immediately, listens to the user, and adapts its response.

Can we use our own telephony provider with Bolti?

Yes. Bolti supports BYOC (Bring Your Own Carrier). You can easily connect your existing SIP trunks from providers like Exotel, Twilio, Plivo, or Vobiz to route calls through your own phone numbers.

Is borrower data secure on your platform?

Yes. Bolti is built for enterprise security, offering PII redaction in runtime, SSO via OIDC/SAML, on-premises deployment options, and DPDP-aligned contracts to protect sensitive financial data.