SMS & Messaging

Our Messaging Platform

Reach your customers wherever they are

SMS continues to be a growing market — but today's customers don't just use SMS. They use WhatsApp, Viber, RCS, and more. M3ST's messaging platform brings all of these channels together in a single, intelligent integration, so you never miss a customer interaction regardless of their preferred platform.

Whether you need wholesale API integration, an interactive self-service platform, or full omni-channel orchestration with intelligent priority routing — M3ST's proprietary in-house technology handles it all at network level, with the reliability and analytics your business demands.

From Tier 1 SMS to rich RCS messaging and WhatsApp Business API integration, every message sent through our platform benefits from strong analytics, global reach, and our proprietary regulatory messaging engine.

⚙️ Proprietary Technology

Our in-house regulatory messaging platform

At the heart of our messaging offering is M3ST's proprietary regulatory messaging platform — built entirely in-house to give our clients capabilities that simply aren't available from off-the-shelf providers.

Our platform intelligently orchestrates message delivery across channels with priority routing logic — attempting the richest, most engaging channel first and automatically cascading to the next available channel if delivery is not confirmed. The result is maximum delivery rates, maximum engagement, and full regulatory compliance at every step.

Fully proprietary — built and maintained in-house by the M3ST team
Intelligent priority routing across SMS, RCS, WhatsApp & Viber
Automatic channel fallback to guarantee delivery
Network-level Tier 1 SMS integration with N+1 redundancy
Real-time delivery analytics and reporting via client portal
Regulatory compliance engine built into every message flow
Wholesale API and self-service platform options available
Hardware housed in Tier 4 datacentres with SSL encryption

Priority Messaging Routing

📱 RCS

Rich media, branded, interactive

Preferred

💬 WhatsApp

High engagement, rich content

Fallback 1

📲 Viber

Multimedia messaging, global reach

Fallback 2

✉️ SMS

Universal delivery guarantee

Guarantee

If a higher-priority channel is unavailable,
our platform automatically routes to the next — instantly.

Channel Capabilities

Every channel. One platform.

✉️

SMS

Universal reach — Tier 1 provider

SMS remains the most universally delivered messaging channel. Our Tier 1 SMS service ensures your messages reach any mobile device, anywhere in the world — with real-time 1/1 billing accurate to 4 decimal places and a global reach unmatched by most providers.

Tier 1 interconnection — no grey routes
Real-time 1/1 billing to 4 decimal places
Global delivery with local compliance
Strong analytics and delivery confirmation
Wholesale API and self-service portal access

📱

RCS

Rich Communication Services

RCS is the next evolution of SMS — delivering rich, branded, interactive messages directly to a customer's native messaging app. With branded sender IDs, carousels, quick-reply buttons, and read receipts, RCS dramatically increases engagement over standard SMS.

Branded sender ID and verified business profile
Rich media — images, carousels, video
Interactive buttons and quick replies
Read receipts and delivery confirmation
Automatic SMS fallback if RCS unavailable

💬

WhatsApp Business API

With over 2 billion active users globally, WhatsApp offers unparalleled reach for business messaging. M3ST's WhatsApp Business API integration allows you to send transactional messages, notifications, and two-way conversational messages at scale — with full compliance built in.

WhatsApp Business API integration
Rich media — images, documents, voice
Two-way conversational messaging
Template message management
End-to-end encryption as standard

📲

Viber

Viber Business Messages

Viber reaches over 1 billion users across more than 190 countries — making it an essential channel for businesses with international audiences, particularly across Eastern Europe, Southeast Asia, and the Middle East. Our Viber Business Messages integration supports rich content and promotional messaging.

Viber Business Messages API
Rich media and promotional content
Strong reach in Eastern Europe & Asia
Two-way messaging capability
Verified business sender profile

Platform Features

Everything you need in one platform

🔀

Intelligent Priority Routing

Our proprietary engine automatically routes each message via the best available channel — maximising delivery rates and engagement without any manual configuration.

📊

Real-Time Analytics

Full delivery reporting, open rates, and engagement metrics available in real time through your M3ST Client Portal — with data accessible at network level.

🔌

Wholesale API Integration

Integrate our messaging platform directly into your own systems via our robust API — with comprehensive documentation and dedicated technical support.

⚖️

Regulatory Compliance Engine

Our built-in regulatory messaging engine ensures every message sent through our platform complies with applicable regulations in each country and on each channel.

🌍

Global Reach

Deliver messages to customers across the world with our global SMS network and multi-channel integrations — all through a single platform and a single account.

🏗️

Tier 4 Infrastructure

Our messaging platform runs on hardware housed in Tier 4 datacentres with SSL encryption, N+1 redundancy, and interconnection solely with Tier 1 providers.

How It Works

Priority messaging in four steps

Message Initiated

Your system sends a message via our API or platform — specifying content, recipient, and any priority channel preferences.

Channel Selection

Our proprietary routing engine determines the optimal channel — RCS first, then WhatsApp, Viber, and SMS as the guaranteed fallback.

Delivery & Fallback

If the preferred channel is unavailable, our platform instantly cascades to the next — ensuring delivery with no manual intervention required.

Analytics & Reporting

Real-time delivery status, channel used, and engagement data is fed back to your portal instantly — giving you full visibility of every interaction.

Use Cases

Who uses our messaging platform?

📅 Appointment Reminders

Healthcare, financial services, and service businesses using rich messaging to confirm, remind, and reschedule appointments with higher open rates than email.

🔔 Transactional Notifications

Delivery confirmations, order updates, payment receipts — any transactional message that needs to reach the customer reliably and instantly.

📣 Marketing Campaigns

Promotional messaging at scale across multiple channels — with intelligent routing to maximise engagement on the channel each customer actually uses.

🔐 Two-Factor Authentication

Secure OTP and 2FA delivery via the most reliable channel available — with SMS as the guaranteed fallback to ensure authentication is never blocked.

💬 Two-Way Conversations

Customer service and support conversations via WhatsApp and Viber — enabling your team to engage customers on the platform they already use daily.

🏢 Enterprise & Platform Providers

Wholesale messaging infrastructure for UCaaS, CPaaS, and omni-channel platform providers looking to embed carrier-grade messaging into their products.

One platform. Every messaging channel.