Solution

rSIM

CSL’s world’s first patented rSIM is a game-changer for IoT connectivity. Designed for life-critical, business-critical, and mission-critical applications, it provides always-on, intelligent resilience — switching autonomously between network profiles to keep your devices connected, even when others go offline.

rSIM is trusted across key sectors including Telecare, PoS, Lone Worker, CCTV, EV Charging, and Automotive, where reliable connectivity isn’t just important — it’s essential.

city night sky with graphics of vertical lines and connectivity image
city and park with graphics of connectivity lines image
Abstract Image of IoT Connectivity
workman with hi-vis and hardhat on mobile phone image

What Makes rSIM different?

Smarter, self-managing connectivity built for critical applications.

Autonomous network switching
Embedded connectivity testing
Works without device firmware logic
Supports fallback and return to primary
Patented, intelligent architecture
Decorative swirl background

Why Choose CSL rSIM?

Our patented rSIM technology gives you a proactive solution, maintaining connectivity by actively monitoring network health and switching profiles as needed.

Always-On Connectivity

rSIM continuously monitors the mobile network and automatically switches to a backup profile during outages — restoring connectivity in seconds. This ensures uptime in the most critical situations.

• Autonomous network switching built into the SIM
• Seamless transition between operator cores
• No manual intervention or external triggers required

Embedded Intelligence for Resilience

Unlike traditional roaming SIMs, rSIM is fully autonomous — it thinks for itself.

• Built-in connectivity testing at configurable intervals
• Triggers backup switch after a set period of failure
• Algorithmically returns to primary network post-outage

Device-Agnostic and Easy to Deploy

rSIM works with any device that accepts UICC or eUICC SIMs — no dual SIM slots, firmware complexity, or specialist hardware required.

• Easy deployment across a wide range of devices
• Simplified development and integration for OEMs
• Reduced Bill of Materials and faster time to market

Life-Saving and Business-Critical Reliability

From Telecare to retail, rSIM protects the systems that protect people — and your bottom line.

• Prevents life-threatening disruption in critical systems
• Reduces risk of store closures and revenue loss in PoS
• Keeps lone workers and safety systems connected

Fully GSMA Compliant and Globally Compatible

rSIM is fully aligned to GSMA specifications and mobile operator roadmaps.

• Trusted by global MNOs
• Seamless compatibility with network infrastructure
• Certified performance and future-ready roadmap alignment

Patented Resilience, Proven at Scale with Millions of Connections

Unique technology, trusted across industries

• Protected by international patents, ensuring exclusive resilience features.
• Deployed in hundreds of thousands of mission- and life-critical systems across multiple sectors.

Ensuring connectivity across critical IoT applications

woman on scooter looking at mobile phone for maps image

Micro Mobility

Reliable connectivity for e-scooter navigation, rental services and real-time tracking, ensuring riders stay connected even during outages. Many businesses and transport systems rely on up-to-date tracking systems and online payment processes to ensure full utilisation of their services. rSIM ensures that these systems always remain online and available to users. 

patient at home on laptop to doctor image

Healthcare and Telecare

Supports emergency monitoring and response services for vulnerable populations, including Telecare solutions, giving peace of mind to users, caregivers and families. Core Network outages are a particular concern for life-critical services as they can leave the elderly and vulnerable unprotected. rSIM ensures that healthcare and telecare monitoring systems and alarms are always connected and available.  

fire fighters spraying water on skyscraper in crane and drone image

Emergency Services

Provides secure, resilient connectivity for drones, CCTV and body-worn cameras, enabling rapid response in critical situations. The loss of core network connectivity at critical times means that key emergency systems can be left offline during crucial, life-saving operations. rSIM seamlessly solves this problem by ensuring that devices remain connected wherever a signal is available. 

 

TV news presenter image

Broadcasting and Media

Ensures seamless streaming and reliable data transfer, even in fluctuating signal environments. Many forms of broadcasting rely on field operations that must stay connected to deliver streams or files to central systems and editors. rSIM ensures that they are provided with the maximum service availability and uptime.  

hand holding EV charger image

Parking & EV Charging

Enables real-time updates and efficient management of EV charging and smart parking systems. EV charge points are subject to expanding service uptime legislation to ensure that they can be viewed online and used by the general public. Two of the key issues being accurate service availability information and encouraging high service utilisation. By ensuring EV chargers are constantly online, rSIM can help ensure compliance with the charge point regulations. Ensuring a reliable service that drivers trust as part of their charging routines. 

worker on tablet at utilities plant image

Utilities

Supports smart meter connectivity and remote monitoring for accurate data collection and billing. Connectivity for smart grids is also becoming increasingly important as generation systems become more decentralised. Renewable energy systems need to always be online so that they can interact with dynamic load management systems. Ensuring that the full power of renewable generation and storage systems are able to smooth peak demand and protect the grid. 

person paying on pin machine in shop with smart phone image

Retail & POS

Provides cyber-secure, always-on connectivity for processing payments, ensuring excellent customer experiences and optimised operations. Losing connectivity to outages is extremely harmful to retail and hospitality businesses and as a result payment service providers. Resulting in significant loss of revenues, key services, and reputational damage. rSIMs ability to detect network throughput and switch to redundant networks can keep businesses operational while others falter. 

Man operating drone above solar panel field image

Lone Worker Protection

Facilitates real-time location tracking, emergency alerts and cyber-secure communication for individuals in remote environments, ensuring their safety. Lone workers rely on always on network connectivity as they perform their everyday duties or enter high-risk areas. Without connectivity, they are left unprotected and unable to remain monitored or call for help. rSIMs dual core technology ensures that they remain on-line and able to perform their tasks in the knowledge that help remains a call away.