Reach thousands of customers through automated voice messages — no agents, no manual dialling. From OTP calls to mass announcements, our Voice Call service delivers your message at just ₹0.30 per call with 29-second pulse billing.
Bulk Voice Call (also known as Voice Broadcasting or Robocalling) is an automated service that dials thousands of phone numbers simultaneously and plays a pre-recorded audio message when the call is answered. It is one of the most personal and impactful communication channels available to businesses today.
Unlike SMS, a voice message is spoken and heard — making it far more effective for customers who prefer listening over reading, or for reaching audiences in regional languages like Gujarati or Hindi. With literacy rates varying across Gujarat, voice calls ensure your message is understood by every recipient.
At just ₹0.30 per call with 29-second pulse billing, Synergy DataTech makes Voice Broadcasting the most cost-effective way to run mass outreach campaigns, appointment reminders, election campaigns, collection calls, and much more — all without a single human agent.
Start a Voice CampaignNo hidden fees, no monthly commitments. Pay only for what you use.
Lowest rate in Ahmedabad
Not per minute — saves you money
Enterprise custom rates available
Choose the right voice call type for your specific business use case
Send a pre-recorded message to thousands of numbers at once. Ideal for campaigns, announcements, event reminders, and mass notifications.
Most PopularPlay a message and prompt the customer to press 1 to speak to an agent, confirm an appointment, or register interest. Great for lead generation.
High ROIDeliver OTPs via voice call — perfect for users who have SMS delivery issues, feature phones, or difficulty reading SMS messages.
AccessibleAutomated calls to remind patients, clients, or students of upcoming appointments, exams, or sessions — reduce no-shows dramatically.
HealthcarePolitely remind customers of overdue payments or upcoming EMIs with a professional automated voice message — no human agent required.
FinanceReach voters, collect feedback, run awareness campaigns, or conduct surveys across an entire constituency or district in a matter of hours.
Mass OutreachFrom your contact list to your customer's phone — fully automated, zero agents needed
Upload your contact list in Excel or CSV format.
Provide your pre-recorded message or use our TTS engine.
Choose your campaign timing or start immediately.
System dials all numbers. Auto-retry on busy or no answer.
Track answered, missed, and failed calls in real-time.
Businesses of all sizes across Ahmedabad use Voice Broadcasting to connect with customers at scale
Appointment reminders, health camp alerts, vaccination drive announcements, and lab report notifications.
Exam timetable announcements, fee payment reminders, result notifications, and parent-teacher meeting alerts.
EMI reminders, loan disbursement confirmations, account renewal alerts, and credit card payment due calls.
New property launch invitations, site visit scheduling, payment reminder calls for under-construction projects.
Voter awareness drives, candidate introduction calls, polling booth information, and campaign rally invitations.
Order confirmation calls, delivery schedule alerts, feedback collection, and loyalty programme announcements.
Both channels are powerful. Understanding the difference helps you choose the right one for your campaign
| Feature | Voice Call | SMS |
|---|---|---|
| Medium | Audio (spoken word) | Text (written) |
| Best for Low-Literacy Users | ✓ Excellent | ✗ Limited |
| Regional Languages | ✓ Gujarati, Hindi, English | ✓ Unicode support |
| Customer Interaction | ✓ Press-1 DTMF response | ✗ One-way only |
| DND Reach | Non-DND only (Promotional) | All numbers (Transactional) |
| Cost | ₹0.30 per call | ₹0.14–₹0.18 per SMS |
| Message Length | Unlimited (audio file) | 160 characters per SMS |
| Impact | High (personal, spoken) | High (98% open rate) |
From first contact to your first campaign — simple, fast, and fully supported
Reach out by call, WhatsApp, or enquiry form. We'll understand your campaign needs immediately.
Provide your pre-recorded audio file or let us generate a professional voice message using TTS.
Upload your contacts via CSV or Excel. The system validates and queues them for dialling.
Kick off your campaign instantly or schedule it. Monitor live call stats from your dashboard.
Common questions from businesses across Ahmedabad about our Voice Call service
With 29-second pulse billing, you are charged for every 29-second block of actual call duration — not rounded up to a full minute like traditional billing. So if your call lasts 25 seconds, you pay for just one 29-second pulse. If it lasts 35 seconds, you pay for two pulses. This results in significantly lower costs compared to per-minute billing, especially for short voice messages.
Yes, you can upload your own audio file in MP3 or WAV format. Alternatively, our platform includes a text-to-speech (TTS) engine that can convert your script into a natural-sounding voice message in English, Hindi, or Gujarati — at no additional cost.
For promotional Voice Broadcasting, calls cannot be made to DND registered numbers as per TRAI regulations — similar to Promotional SMS. However, transactional voice calls (such as Voice OTP or delivery alerts) may be eligible to reach DND numbers. Our team will advise you on the right approach based on your specific use case.
A Press-1 (DTMF) campaign plays an outbound voice message and asks the recipient to press 1 on their keypad to take an action — such as speaking to a sales agent, confirming an appointment, or registering interest. When they press 1, the call is automatically forwarded to your specified phone number. It's excellent for lead qualification and appointment confirmations.
There is no strict minimum. We serve businesses of all sizes — from small businesses making a few hundred calls to enterprises running campaigns of hundreds of thousands. Contact us and we'll design a package that fits your volume and budget perfectly.
Launch your first Bulk Voice Campaign at ₹0.30/call — 29-second pulse billing, zero setup fees. Trusted by 500+ businesses in Gujarat.