Bulk Voice Calls

Bulk voice call service for broadcasts and alerts

Reach thousands of customers with the same recorded message in minutes, for notices, reminders and campaigns.

Bulk Voice Calls

Recorded broadcasts
Reach every audience
Call reports

Bulk Voice Calls: the short answer

A bulk voice call service, also called voice broadcasting, places automated phone calls to many customers at once and plays a recorded message. It reaches people who do not read texts, and suits reminders, service notices and urgent alerts. Mantraxtel adds reporting so you know who answered.

This page is part of our Voice service. See also ivr service and reminder calls. Ready to start? Book a demo or talk to our team.

How to get started

Share your use case, audience and expected call volume.
Record your message or have the script prepared with our team.
Upload your contact list and schedule the broadcast.
Review who answered and follow up where needed.

Last updated: 24 October 2026

At a glance

Service	Bulk voice calling by Mantraxtel
Also called	Voice broadcasting, voice SMS, OBD calls
Best for	Reminders, service notices, urgent alerts, campaigns
Reports	Call outcome reporting
Related	IVR, reminder calls and SMS
Contact	sales@mantraxtel.com, +91 82188 68212 (Mon-Fri, 9:30 AM-6:30 PM IST)

When a voice broadcast beats a text

Not every customer reads SMS, and some messages are too important to leave unnoticed. A call is hard to miss: it rings, someone answers and hears the message in a human voice. That is why voice works well for emergency notices, payment reminders and customers who prefer spoken communication.

Voice also reaches audiences with low literacy or limited data access, making it a dependable fallback alongside SMS.

Send the same recorded message to a large list at once
Schedule broadcasts for the right time of day
Regional-language recordings for local audiences
Call outcome reports to see who answered
Pair with SMS or IVR for follow-up

Book a Demo

Popular voice broadcast uses

Payment and due-date reminders

A call gets attention when a message could be missed.

Service disruption notices

Tell customers about outages, delays or changes quickly.

Event and appointment reminders

Confirm attendance with a spoken reminder.

Campaign announcements

Promote an offer or launch to a wide audience.

Follow the rules for commercial calls

In India, commercial voice calls fall under TRAI regulations, which cover customer preferences such as Do Not Disturb and designated number series. Rules differ for promotional and service calls.

Our team guides you on what applies to your use case so your broadcasts stay compliant.

Bulk Voice Calls: questions, answered.

Clear answers to the questions we hear most. If yours is not here, ask us directly.

What is a bulk voice call service?

It is a service that places automated phone calls to many people at once and plays a recorded message. It is also called voice broadcasting or OBD (outbound dialing) calls.

When should I use voice instead of SMS?

Use voice for urgent or important messages that must be noticed, for audiences who rarely read texts, and where a spoken message is clearer. SMS is better for short, low-urgency updates.

Can I send voice calls in regional languages?

Yes. You can record messages in the language your customers speak, such as Hindi or a regional language.

Can I see who answered the call?

Yes. Call reports show the outcome of each call so you can follow up with people who did not pick up.

Are promotional voice calls regulated in India?

Yes. Commercial calls are governed by TRAI rules, including preference checks. Share your use case and our team will advise on what applies.

Ask Our Team

Ready to get started with bulk voice calls?

Tell us your use case and volume. We will help you set up, go live and measure results.

Discuss Your Requirement