If your business needs to reach customers at scale, ITGTEL offers three powerful messaging services: SMS Blast, WhatsApp Blast, and Voice Blast. They all send messages to large lists quickly — but each one suits a very different situation. Picking the wrong channel can waste your budget and hurt engagement.
Here’s a plain-English breakdown to help you decide.
The Three Services at a Glance
📱 SMS Blast sends bulk text messages directly to mobile numbers — no internet required on the recipient’s end. It’s the most universally accessible channel, reaching even basic feature phones. Best for OTPs, alerts, appointment reminders, and short promotions. View plans →
💬 WhatsApp Blast uses the official WhatsApp Business API to send rich multimedia messages — text, images, videos, and PDFs — to thousands of contacts at once, without saving their numbers first. Recipients can reply, making it two-way. Best for product launches, promotional campaigns, and lead nurturing. View plans →
📞 Voice Blast delivers pre-recorded voice messages via automated calls. It supports IVR keypads (press 1 for yes, press 2 for no), making it ideal for surveys and reminders where a response is needed. Best for payment reminders, appointment confirmations, and customer surveys. View plans →
Side-by-Side Comparison
| Feature | SMS Blast | WhatsApp Blast | Voice Blast |
|---|---|---|---|
| Requires internet | No | Yes | No |
| Media support | Text only | Text, image, video, PDF | Pre-recorded audio |
| Two-way interaction | No | Yes (replies) | Yes (IVR keypads) |
| Open/read rate | ~98% | ~90% | High when answered |
| Personalisation | Limited | High | Medium |
| Setup cost | None | None | RM500 activation |
| Cost per message | RM0.10–0.125 | RM0.045–0.08 | Varies by volume |
Which One Should You Choose?
Choose SMS Blast when reliability and reach are your top priority. It works on every phone, needs no app, and delivers instantly. Ideal for OTPs, service alerts, flash sales, and any time-sensitive message where you can’t afford a miss.
Choose WhatsApp Blast when your message benefits from visuals or you want customers to be able to reply. With over 30 million active WhatsApp users in Malaysia, it’s the richest channel available — and ITGTEL’s service runs on the official Business API, so it’s fully compliant and scalable.
Choose Voice Blast when tone and urgency matter. A voice carries authority that text cannot. It’s particularly effective for overdue payment reminders, satisfaction surveys via IVR, and reaching older demographics who respond better to calls than messages.
Quick-Pick by Goal
| Your Goal | Use This |
|---|---|
| OTP / verification code | SMS Blast |
| Flash sale promotion | WhatsApp Blast |
| Payment overdue reminder | Voice Blast + SMS Blast |
| New product launch | WhatsApp Blast |
| Appointment confirmation | SMS Blast or Voice Blast |
| Customer satisfaction survey | Voice Blast (IVR) |
| Service disruption alert | SMS Blast |
| Event invitation with flyer | WhatsApp Blast |
Can You Combine Them?
Yes — and many Malaysian businesses do. A simple multi-channel approach:
- WhatsApp Blast 3 days before your sale — send your product visuals and details.
- SMS Blast on the morning of the sale — deliver the promo code for maximum reach.
- Voice Blast post-sale — collect customer feedback via IVR.
If you want to manage all replies from WhatsApp, SMS, and more in one place, ITGTEL’s Omnichannel Solution brings every channel into a single inbox.
The Bottom Line
There’s no single “best” blast service — only the best one for your specific goal:
- SMS Blast → reliability, reach, urgency
- WhatsApp Blast → richness, engagement, two-way conversation
- Voice Blast → authority, interactivity, survey responses
ITGTEL provides all three under one roof, with local Malaysian support and competitive credit-based pricing.
Ready to get started?
📞 Call: +(60) 3-2772 0925 📧 Email: sales@itgtel.com 💬 WhatsApp: Chat with us 🌐 Explore plans: itgtel.com/messaging-voice-blast