SMS, WhatsApp and RCS messaging
Messaging: SMS, WhatsApp, RCS
Communicating well with customers is one of the essentials of a modern business. Sending messages over SMS, WhatsApp and RCS lets you reach your audience quickly, securely and personally. Each channel has its own strengths — choose what fits your needs. With self-service.

SMS messages
Universal and dependable.
SMS (Short Message Service) is one of the oldest ways to reach a customer and still one of the most widely used. It works without an internet connection, which makes it well suited to critical notifications, reminders and two-factor authentication.The main advantages:
Reaches any device
Works without internet
High open rate
WhatsApp messages
WhatsApp is one of the most widely used messaging platforms in the world. Integrated into 3CX, it lets you manage all customer communication centrally.
Universal and dependable.
Reaches any device
Works without internet
High open rate


RCS messages
SMS, modernised.
RCS (Rich Communication Services) is the next-generation message format, combining the simplicity of SMS with modern features. It carries interactive content — images, buttons, even chatbots — straight into the customer’s messaging app.The main advantages:
Rich content (images, video, buttons)
Higher engagement
Brand recognition (verified sender)
Why choose Tenesys – 3CX messaging?
Tenesys – 3CX offers one central platform for managing every communication channel in a single place. That raises efficiency, gets customers served faster and makes it easy to build messaging into the business systems you already run.
The main advantages:
A central communication management system with self-service
Easy integration with existing business systems
More efficient customer service
✅ Fast integration and solid support. We will shape the RCS solution around what you need, from marketing to notifications and self-service.
Technical support, analysis and optimisation are included.
✅ Reliability and data security. We meet GDPR requirements
and data is held within the European Union.
📈 RCS is more than a message — it is a communication platform. Get ready today for the customer service and marketing of tomorrow. Choose RCS. Choose Tenesys.
Get in touch and we will help you start.
Technical support, analysis and optimisation are included.
✅ Reliability and data security. We meet GDPR requirements
and data is held within the European Union.
📈 RCS is more than a message — it is a communication platform. Get ready today for the customer service and marketing of tomorrow. Choose RCS. Choose Tenesys.
Get in touch and we will help you start.
SMS, WhatsApp and RCS compared
Feature SMS WhatsApp RCS Works without internet ✅ ❌ ❌ Multimedia support ❌ ✅ ✅ Delivery information ✅ ✅ ✅ Interactive buttons ❌ Limited ✅
| Feature | SMS | RCS | |
|---|---|---|---|
| Works without internet | ✅ | ❌ | ❌ |
| Multimedia support | ❌ | ✅ | ✅ |
| Delivery information | ✅ | ✅ | ✅ |
| Interactive buttons | ❌ | Limited | ✅ |
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