Voice message and voice broadcast service
Reach every customer with pre-recorded voice calls in Bangla or English, including people who never read a text message.
Voice Message (Voice SMS) · Voice · LiveWhat is Voice Message (Voice SMS)?
Nexbyte Voice Message calls your customers and plays a pre-recorded message in Bangla or English. It reaches people who ignore or cannot read SMS, which makes it ideal for reminders, announcements, election and awareness campaigns.
Record your own voice or type a script for text-to-speech, upload your number list and launch. Add a keypress menu to collect answers, confirmations or transfer interested people to your call center.
- Live in days, not monthsSetup, migration and training by our team
- Secure by defaultRoles, two-factor login and audit logs
- Local supportBangla and English, on chat, phone and email
Everything Voice Message can do
12 features in 3 groups. Items marked New are the latest additions.
MP3 or WAV in your own voice.
Natural text-to-speech voices.
Generate a studio-quality voice from a script in seconds.
Insert each person's name or amount into the call.
Press 1 to confirm, 2 to talk to an agent.
Connect interested people to your call center.
Collect ratings and answers on the call.
Send an SMS to people who did not answer.
Leave a message or retry when a machine answers.
Call again at times you choose.
Respect quiet hours and control calls per minute.
Automatic do-not-call and opt-out handling.
Reach everyone
Voice works for every mobile user, including people who do not read text.
Your own voice
Upload a recording or use natural Bangla and English text-to-speech.
Two-way with keypress
Collect answers with press 1 or 2 and get results instantly.
Smart retries
Unanswered numbers are called again at the times you choose.
Connect to agents
Forward interested callers straight to your call center team.
Live reports
Answered, missed, duration and keypress results per number.
Get started in four steps
- 01Prepare your message
Record a voice file or type a text-to-speech script.
- 02Upload numbers
Import a list from Excel or connect through the API.
- 03Set the schedule
Choose calling hours, retries and caller ID.
- 04Launch and measure
Follow answered calls and keypress results live.
See your price before you call us
Move the sliders to match your needs. The estimate updates instantly in BDT.
Estimate your voice campaign
Start a voice campaign in minutes
A simple REST API with webhooks, sandbox keys and docs. Plug it into your website, app or software.
- Sandbox key on signup
- Webhooks for every status change
- SDK examples for PHP, Node.js and Python
curl -X POST https://api.nexbyte.com.bd/v1/voice/campaigns \
-H "Authorization: Bearer $API_KEY" \
-d audio_id=aud_7Hk2 \
-d numbers=8801712345678,8801812345678 \
-d retries=2Http::withToken($apiKey)->post(
'https://api.nexbyte.com.bd/v1/voice/campaigns', [
'audio_id' => 'aud_7Hk2',
'numbers' => ['8801712345678'],
'retries' => 2,
]);await nexbyte.voice.campaigns.create({
audioId: 'aud_7Hk2',
numbers: ['8801712345678'],
retries: 2,
keypress: { 1: 'confirm', 2: 'transfer' }
});Nexbyte vs a typical provider
Technical details
- Concurrent calls
- Up to 500 channels
- Audio formats
- MP3, WAV · up to 120 sec
- Voices
- Bangla & English, male/female
- Billing
- Per answered call, 30-sec pulse
- Keypress
- Up to 9 options, multi-level
- Reports
- Answered, missed, duration, keypress
- API
- REST + webhooks
- Caller ID
- Dedicated number on Enterprise
Security & compliance
- Consent and opt-out records per number
- Encrypted audio and number lists
- Calling hour limits by default
- Audit log of every campaign
Simple pricing in BDT
Business
- Text-to-speech
- Keypress survey
- Retries & scheduling
- Priority support
Enterprise
- Agent transfer
- API & webhooks
- Dedicated caller ID
- Account manager
Example prices for planning. Final rates are confirmed in your written quote.
Questions about Voice Message (Voice SMS)
8 answers. Still unsure? Our team replies within two working days.
What is a voice SMS?
A voice SMS is an automatic phone call that plays a recorded message when the person answers. It is also called voice broadcast.
Can I use my own voice?
Yes. Upload an MP3 or WAV file, or type your text and use our Bangla or English text-to-speech voice.
How is a call charged?
Calls are charged per answered call in 30-second pulses. Unanswered calls are not charged.
Can people respond to the message?
Yes. Add a keypress menu so people can press a number to confirm, answer a survey or talk to an agent.
How many numbers can I call at once?
Campaigns can reach thousands of numbers in parallel. Enterprise plans get higher concurrent channels.
What is answering machine detection?
The system detects voicemail and either leaves your message or retries later, so you only pay for real conversations.
Can I see who pressed which key?
Yes. Keypress results are shown per number and can be exported or sent to your CRM.
Is there a length limit?
Messages can be up to 120 seconds. Most campaigns work best at 20 to 40 seconds.
Have a product idea or a process to fix?
Tell us what you need. We'll come back with a plan, a timeline and the right team, usually within two working days.
What happens next~48h
Average first reply in 3 hours