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Bulk voice calls: one recorded message, thousands of phones
Bulk voice calling, also called voice broadcasting or OBD (outbound dialling), plays a recorded message to many phone numbers in one campaign. Recipients can press a key to reply, so you can run surveys, collect leads and confirm appointments. SMSNiti gives you a panel and an API, with a report for every call.
Our campaign panel operates from 10 AM to 9 PM, giving you a wide window to run campaigns.
- Key-press responses
- Mobile and landline numbers
- Auto retry and reports
Overview
What is a bulk voice call service?
A bulk voice call service lets you deliver the same recorded voice message to thousands of phone numbers at once. You upload your list, add your audio, choose the time, and the system dials each number and plays your message when the call is answered.
Short answer: Bulk voice calls play a pre-recorded message to many numbers in one campaign. People can press keys to respond, and you receive a report showing who answered and what they pressed.
Why use voice instead of SMS
A phone call is personal. It reaches people who rarely read text messages, works well in regional languages, and a spoken reminder is harder to miss than a text. Voice also lets people answer instantly by pressing a key, for example 1 to confirm or 2 to talk to the team.
Recorded audio or text-to-speech
You can upload a recorded voice message, or type the text and let text-to-speech read it aloud. Text-to-speech can include details such as a name or an amount, which a single recording cannot.
Call types
Choose the right kind of voice service
Pick the service that fits your goal: promotion, automatic alerts, interactive menus or missed-call lead capture.
Promotional voice calls
A recorded offer or announcement to many numbers, with key-press replies.Transactional voice calls
Automatic reminders and alerts triggered by your system.IVR service
Automated call menus that answer and route callers.Missed call service
Let customers give a missed call to reach you or get information.What you get
Features of our bulk voice call service
Response capturing
Recipients press keys during the call. Use it for surveys, opt-ins, confirmations and lead generation.DND and non-DND numbers
Reach both kinds of numbers within the rules for the call type you use.API integration
Trigger calls from your own software, such as payment reminders from your billing system.Auto retry
Unanswered calls are retried so more people hear your message.Text-to-speech
Turn text into natural-sounding speech, including names and amounts.Call reports
See who answered, how long they listened and which key they pressed.How it works
How to run a bulk voice call campaign
Choose your goal
Decide whether you want to announce, remind, survey or collect leads. We suggest the right call type.Prepare the message
Record your audio or write the text for text-to-speech. Keep it short and clear, with one action for the listener.Add your numbers and settings
Upload your list, choose the key-press options, and set the retry rules.Schedule and launch
Run the campaign inside the allowed calling hours.Review responses
Download the report, follow up with the people who pressed a key, and plan the next campaign.Who uses it
How different industries use voice calls
Education
Announce results, remind parents about meetings and share admission deadlines.Healthcare
Send appointment and prescription reminders and announce health camps.Retail and e-commerce
Announce sales, update customers on orders and run satisfaction surveys.Real estate
Invite buyers to open houses and remind them about property viewings.Finance
Remind customers about due dates and confirm transactions.Community and public information
Share notices, safety alerts and event information with many people quickly.Stay compliant
Rules for sending voice calls in India
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Calling hours: Promotional calls are allowed only during the permitted hours of the day. We schedule campaigns inside them.
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Permission and DND: Promotional calls follow consent and Do Not Disturb rules. Transactional calls are meant for messages the customer expects.
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Registered numbers: Calls are made from registered numbers in the series allowed for the call type.
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Honest, clear content: Say who is calling and why, and avoid misleading claims.
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Easy opt-out: Give people a simple way to say they do not want more calls, for example a key press.
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Emergency messages: Alerts such as weather warnings and safety announcements can be sent when they are genuinely needed.
Which channel?
Voice calls or SMS?
| Voice call | SMS | |
|---|---|---|
| Reaches | Anyone who picks up, including people who rarely read texts | Anyone who reads messages |
| Response | Press a key during the call | Reply or tap a link |
| Language and literacy | Spoken message, easy for all | Needs reading ability |
| Record kept | Call report with key presses | Delivery report |
| Best for | Announcements, surveys, urgent reminders | OTPs, short alerts, links |
Why SMSNiti
Why choose SMSNiti for voice calls
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Experience since 2011: We have run voice campaigns for many kinds of businesses and know what works.
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Industry guidance: We help you shape the script and key-press flow for your audience.
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Plans around your volume: You get a quote based on how many calls you make and which type.
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One partner for every channel: Combine voice with SMS, WhatsApp and email.
Questions
Bulk voice calls: frequently asked questions
It is a tool that delivers a recorded voice message to many phone numbers at once and reports who answered and what they pressed.
You provide the message, the list of numbers and the schedule. The system dials each number and plays the message when the call is answered. Unanswered calls can be retried.
Yes. Both mobile and landline numbers are supported.
Yes. Recipients can press keys during the call, for example 1 to confirm. The report shows each response.
Transactional and service calls can reach them, as they carry messages customers expect. Promotional calls follow consent and DND rules.
A recorded message is the same for everyone. Text-to-speech can read out personal details such as a name or an amount.
Our campaign panel operates from 10 AM to 9 PM. Promotional calls must also stay within the legally permitted hours.
Yes. You can run a campaign at once or schedule it for a date and time.
Yes. Weather alerts, safety announcements and evacuation instructions can be delivered to many people quickly.
Education, healthcare, retail, real estate, finance and customer support teams, among others.
Contact us with your goal and the number of people you want to reach. We will suggest a plan and help you create your first campaign.
Talk to a messaging expert today
Tell us what you want to send and who to. We will suggest the channel and the plan.
