VIPRATECH LABS

Appointment Booking and Reminder Voice Agent

A Hindi, English and regional-language voice agent that books, reschedules and cancels OPD appointments against live doctor schedules and calls patients with reminders.

Capability:
Voice AI

Who it is for

  • Head of Patient Services and Front Office
  • Hospital Call Centre Manager
  • Hospital Operations Director
  • Clinic Chain Operations Lead

The problem

Hospital phone lines are busiest in the morning, when callers want a slot with a particular doctor and the front desk is also registering walk-in patients. Missed calls become lost appointments, and booked patients forget or arrive on the wrong day when a doctor's OPD changes.

Missed and abandoned calls

Peak-hour calls go unanswered, and patients book elsewhere or turn up as walk-ins.

Complex schedules

Doctors run OPD on different days, with separate slots for new and follow-up patients, procedures and teleconsultations.

No-shows and late cancellations

Without reminders, slots go unused while other patients wait days for an appointment.

Doctor leave and OPD changes

When a consultant cancels OPD, staff must phone every booked patient by hand.

What we build

We build a voice agent that answers appointment calls in Hindi, English and the regional languages your patients speak. It reads live slots from your HIS scheduling module, understands requests such as the next available slot with a cardiologist on Saturday, and books, reschedules or cancels appointments. Existing patients are found by mobile number or UHID, and new patients are registered with the minimum details your process needs. The agent sends a WhatsApp or SMS confirmation, calls with a reminder before the visit and phones booked patients when a doctor's OPD is cancelled. It gives no medical advice; callers who describe urgent symptoms are directed to emergency care and transferred to staff.

  • Speech recognition tuned for doctor names, departments and dates and times in Indian languages
  • Live slot lookup and booking against the HIS scheduling module
  • Existing-patient lookup by mobile number or UHID and minimal new-patient registration
  • Reminder calls and WhatsApp confirmations with reschedule options
  • Bulk rescheduling calls when a doctor's OPD changes
  • Emergency phrase detection that directs callers to emergency care and transfers to staff

How it works

  1. 01Answer and understandThe agent answers in the caller's language and identifies the request: book, reschedule, cancel or query.
  2. 02Screen for urgencyIf the caller describes urgent symptoms, it gives scripted emergency guidance and transfers to staff at once.
  3. 03Identify the patientExisting patients are found by mobile number or UHID; new patients are registered with minimal details.
  4. 04Offer and confirm a slotIt reads live availability, offers the nearest options, writes the booking to the HIS and confirms by WhatsApp or SMS.
  5. 05Remind and rescheduleBefore the visit it calls with a reminder and handles changes, and it calls patients when an OPD is cancelled.
  6. 06Hand over when neededComplaints and complex requests go to front-office staff with a call summary.
Appointment Booking and Reminder Voice Agent: workflow diagram
Open full size

Architecture

  1. Telephony
    • Cloud telephony or hospital PBX via SIP
    • Outbound dialler with permitted call windows
  2. Speech
    • Multilingual speech-to-text
    • Text-to-speech in Hindi, English and regional languages
  3. Dialogue and safety
    • LLM dialogue manager with booking policies
    • Emergency phrase detector
    • No-medical-advice guard
  4. Hospital systems
    • HIS scheduling API
    • Patient registry lookup and registration
    • WhatsApp and SMS confirmations
  5. Operations
    • Front-office handover screen
    • Call analytics and transcripts
Appointment Booking and Reminder Voice Agent: architecture diagram
Open full size

Inputs and outputs

Inputs

  • Caller audio from telephony
  • Doctor schedules and slot rules from the HIS
  • Patient registry with mobile numbers and UHIDs
  • Consultation fees and visit instructions
  • Emergency phrase list and scripted guidance approved by clinicians

Outputs

  • Booked, rescheduled and cancelled appointments in the HIS
  • WhatsApp or SMS confirmations
  • Reminder and OPD-change call outcomes
  • Handover summaries for front-office staff
  • Call transcripts and call-reason reports

Where people stay in control

Front-office staff take escalated calls and complaints, and clinicians approve the emergency phrase list and scripted guidance. The agent never advises on symptoms or treatment; it books, reminds and hands over.

Integrations

  • HIS appointment and registration modules
  • Cloud telephony such as Exotel, Ozonetel or Twilio
  • WhatsApp Business API
  • DLT-registered SMS gateway
  • CRM or helpdesk for complaints

Guardrails

  • No medical advice; scripted response and transfer whenever symptoms are described
  • Emergency phrases trigger immediate direction to emergency care and a staff transfer
  • Patient identity confirmed before any appointment is read or changed
  • Outbound calls only within permitted hours and to patients who booked or consented
  • Recordings and transcripts kept per hospital policy with restricted access

Compliance notes

  • Reminder calls and messages are service communications; any promotional content needs separate consent and TRAI-compliant channels.
  • Patient contact and appointment data handled under the DPDP Act 2023, with a recording notice at the start of each call.

A typical pilot

Duration: 4 weeks

Inbound booking calls and reminders for three to five OPD departments during set hours, with an instant route to front-office staff.

Deliverables

  1. 01Call flows and scripts approved by front office and clinicians
  2. 02Voice agent integrated with HIS scheduling, first in test and then live
  3. 03WhatsApp confirmations and reminder calls
  4. 04Handover screen for staff
  5. 05Pilot report and roll-out plan

What we measure

Calls completed without transfer
Bookings, reschedules and cancellations handled end to end by the agent.
Booking accuracy
Audit of agent-made bookings for the right patient, doctor, date and slot.
No-shows among reminded patients
Compared with similar appointments booked before the pilot.
Caller experience
Short post-call feedback and supervisor review of transferred calls.

FAQs

01What if a caller describes an emergency?

The agent recognises emergency phrases from a list your clinicians approve, tells the caller to seek emergency care and transfers to staff immediately. It does not assess symptoms.

02Which languages does it support?

Hindi, English and Hinglish by default, with regional languages such as Gujarati, Marathi, Tamil or Bengali added to match your patient mix. We test recognition of doctor names and dates in each language before go-live.

03Does it work with our HIS?

It needs read and write access to appointment slots and patient registration, usually through an API or database integration. If your HIS has no API, we work through an integration layer agreed with your vendor.

04Can it collect consultation fees?

It can send a payment link by WhatsApp or SMS for prepaid slots if your process uses them. It never takes card or UPI details over the call.

Related use cases

Akhilesh Mittal

Founded by Akhilesh Mittal. 8 years building a security platform for a New Zealand company. IIT ISM Dhanbad and IMT Ghaziabad. Builds production agentic AI.

Start with one department and one document type

Book a discovery call. We will pick one workflow, such as discharge summaries in one department or pre-auth files for one TPA, and scope a short pilot with your team.