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Voice + WhatsApp Agents

Reduce no-shows and missed calls with Voice + WhatsApp agents.

We build India-ready agents that confirm, reschedule, and follow up — plus hand off to humans when needed.

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Go live in 7–10 days Works with CSV / Sheets Human handoff built in Opt-out supported

What we do

Three layers that complete every conversation

Voice starts the interaction, WhatsApp closes the loop, and a human steps in when the situation demands it.

Voice agent

Automated outbound calls that sound natural. Confirm appointments, capture intent, collect missing fields — in Hindi or English, with noisy-line resilience built in.

WhatsApp follow-through

After the call, a WhatsApp message confirms details, shares links, or collects what the call couldn't. Asynchronous, persistent, and on the platform patients already use.

Human handoff + outcomes

When a conversation needs a person, Vaani routes it instantly with full context. Every interaction is logged with reason codes and outcome metrics you can act on.

How it works

From appointment list to confirmed outcome in four steps

1

Upload your list

Share your appointment CSV, Google Sheet, or connect via API. Vaani ingests the list and schedules calls within your chosen time window.

2

Voice call captures intent

Vaani calls each patient in Hindi or English. It confirms, reschedules, or collects missing details — with retries and voicemail handling built in.

3

WhatsApp confirms details

A WhatsApp message follows up with appointment details, location links, or prep instructions. Patients can reply to reschedule directly.

4

Handoff + outcomes reported

Complex cases route to your staff with full context. You get a live dashboard with confirmation rates, no-show predictions, and reason codes.

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Solutions

Outcome packs built for Indian operations

Each solution is a turnkey agent workflow — voice calls, WhatsApp messages, handoff rules, and outcome tracking included.

Live — Accepting Pilots

Healthcare Appointments

Confirm, reschedule, and follow up on patient appointments via Voice + WhatsApp. Reduce no-shows, free up front-desk staff, and track every outcome.

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Coming soon

E-commerce COD Verification

Verify cash-on-delivery orders before dispatch. Reduce RTO rates by confirming intent, address, and payment readiness via automated calls.

Coming soon

Logistics Delivery Coordination

Coordinate last-mile delivery windows with recipients. Confirm availability, share ETA updates via WhatsApp, and handle rescheduling automatically.

Why teams choose us

Built for reliability, not just demos

Production systems need more than a cool voice model. We engineer for the edge cases that matter in Indian operations.

Reliability first

Automatic retries, fallback paths, idempotent operations, and human handoff. Every call either reaches a resolution or escalates cleanly.

Full observability

Call traces, transcripts, reason codes, and outcome logs. Know exactly why each interaction ended the way it did — no black boxes.

Safety by default

Business-hours enforcement, opt-out on every call, purpose limitation, and no data retention beyond what you authorize. Compliant from day one.

India-ready from the ground up

Hindi + English with code-switching, noisy line handling, WhatsApp-first follow-ups, and compatibility with CSV/Sheets workflows that Indian teams actually use.

See it in action

A sample appointment confirmation flow

Voice + WhatsApp in 60 seconds

Here is what a typical patient interaction looks like.

Vaani (Voice Call)
"Namaste, yeh call Apollo Clinic ki taraf se hai. Aapka appointment Dr. Sharma ke saath kal subah 10 baje hai. Kya aap confirm karte hain?"
Patient
"Haan, confirm hai. Lekin kya 11 baje ho sakta hai?"
Vaani (Voice Call)
"11 baje ka slot available hai. Main reschedule kar deta hoon. Aapko WhatsApp pe confirmation aa jayega."
Vaani (WhatsApp)
"Your appointment with Dr. Sharma has been rescheduled to tomorrow at 11:00 AM. Location: Apollo Clinic, Koramangala. Reply CANCEL to cancel."
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FAQ

Common questions

Vaani Linkers is an operations automation company based in India. We build Voice + WhatsApp agents that handle repetitive phone-based workflows — like appointment confirmations, COD verifications, and delivery coordination — so your team can focus on cases that need a human touch. Vaani is our product; Vaani Linkers is the company behind it.
Vaani starts with an outbound voice call to confirm or collect information. If the call succeeds, a WhatsApp message follows with confirmation details, links, or next steps. If the call fails (no answer, voicemail, or the patient requests a callback), Vaani retries according to your rules and can fall back to WhatsApp-only. Complex or sensitive cases are routed to your staff with full context.
No. The voice call is the primary interaction and works on any phone. WhatsApp is used as a follow-up channel for confirmations and links. If a patient does not have WhatsApp, the voice call alone is sufficient to complete the workflow. SMS fallback is also available.
Currently Hindi and English, including code-switching (mixing both in a single conversation, which is common in Indian phone calls). We are adding support for more regional languages based on pilot feedback. WhatsApp messages can be templated in any language.
Most pilots go live within 7–10 days from signing up. We configure the voice scripts, WhatsApp templates, and handoff rules based on your workflow. The pilot runs for 30 days on one branch or department so you can measure results before scaling.
When Vaani detects a situation that needs a person — a complex reschedule, an upset patient, or an edge case outside its rules — it creates a ticket with the full call transcript, patient details, and reason code. Your staff can pick it up via WhatsApp notification, email, or your existing ticketing system.
Every call begins with clear identification and purpose. Patients can opt out at any point during the call or via WhatsApp reply. Opt-out requests are processed immediately and the number is added to a suppression list. Vaani only calls during business hours that you define, and we do not retain personal data beyond the workflow duration unless you configure otherwise.
For the pilot, you just need a way to share your appointment list — a CSV file, Google Sheet, or a simple API endpoint. Vaani handles the calling, WhatsApp messaging, and reporting. For deeper integrations, we support webhooks and can connect to popular HMS/EHR systems, but this is not required to start.

Get started

Ready to reduce no-shows?

Start a 30-day healthcare pilot on one branch. Go live in 7–10 days. Keep it only if your KPIs improve.

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