Home SIMs

When failure is not an option, go EvolveSIM.

Power your systems with advanced IoT SIM connectivity supporting fully redundant multi-network mobile coverage, enhanced security and reliable 7-day phone support.

Multi-network roaming

Automatic failover across major carriers keeps lifts, alarms, access control and CCTV online when one network drops.

UK and EU coverage

One SIM for the UK and EU, in ControlFreq hardware only. It roams across the UK networks.

Live visibility and control

Real-time status and usage with alerts, suspend/resume controls and full history for diagnostics and billing.

Dedicated technical support

Hardware, connectivity and cloud from one provider, provisioned by ControlFreq with UK-based, 7-day support.

Green ControlFreq packaging with a close-up of a gold-coloured SIM chip and the ControlFreq logo.

One SIM card. Every available network.

Keep your whole estate connected with one SIM that works on all four UK mobile networks. If the signal drops on one network, the SIM switches to another automatically, so each device stays on the strongest signal available.

One supplier from SIM to support

We manage every EvolveSIM in-house, so each one is set up correctly for your application. The same team supplies the hardware and software and supports the whole system, so you have one point of contact wherever your devices are installed.

Pixel world map

Global connectivity. One SIM for all UK & EU networks

Built for critical applications where failure is not an option

Robust Multi-network SIM cards that work on every available mobile technology: GPRS, 2G, 4G, 4G-VoLTE, 5G, LTE-M and NB-IoT. Private VPN and static IP are also available.

EvolveSIM won't just go offline without anyone knowing. Every SIM is set up to suit its deployment, and our in-house team watches it in real time. We spot unusual activity early, so you know about a problem before your customers are hit by downtime.

Country 2G 3G 4G 5G LTE-M NB-IoT
Sweden Limited service No service Available Available Available Available
Germany Limited service No service Available Available Available Available
Netherlands Limited service No service Available Available Available Available
Austria Limited service No service Available Available Available Available
Belgium Limited service No service Available Available Available Available
Spain Limited service No service Available Available Available Available
Finland Limited service No service Available Available Available Available
France Limited service No service Available Available Available Available
UK Limited service No service Available Available Available Available
Italy Limited service No service Available Available Available Available
  • Available
  • Limited service
  • No service

2G and 3G networks are being phased out globally. Future-proof your communications with reliable 4G, 5G, LTE-M, and NB-IoT to ensure long-term connectivity.

Managed in-house for deployment and control

Manageable online database to keep SIM deployments organised, detailed and controlled. Advanced features like real-time and historical connection visibility, automations to trigger usage notifications and security to suspend SIM cards automatically on detected events.

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WebAlarm map view on a monitor, with device markers across the UK

Advanced IoT security

Between our intuitive IoT monitoring dashboard and our specialised IoT SIM cards, you benefit from crucial security features:

  • Network-based firewalls
  • SMS firewalls
  • IMEI locks
  • VPNs
  • Connectivity profiles
  • Static IP

Why ControlFreq?

ControlFreq helps organisations replace ageing critical communications, monitoring and access control equipment across large, widely spread estates. You get live visibility of every device, and our own engineers support you during roll-out and after it.

EvolveSIM

Monitor device connectivity in real time and identify issues instantly.

Receive instant notifications for critical events through our WebAlarm Cloud.

Gain network-level insight into SIM activity, performance, and usage anywhere.

Hardware, SIM connectivity, cloud software, and 7-day support from one provider.

Speak to an expert when you need help, not just during office hours.

4UK networks

  • EE
  • Three
  • O2
  • Vodafone

ControlFreq Hardware

Communicators, alarm diallers and access control built by ControlFreq for critical sites, ready to replace landlines and old 2G/3G kit.

See all hardware

EvolveSIM, delivered next-day

EvolveSIM multi-network

£120 per year + VAT

Paid annually

Green SIM card with gold contact points and the logo CONTROLFREQ at the bottom.
  • Per SIM per month: 100MB data, 50 minutes voice, 25 SMS. No carryover. Business customers, UK and EU, ControlFreq hardware only.
  • 7-day phone support.
  • We monitor usage and give 30 days' notice if levels are breached, so possible faults can be checked. If it isn't resolved, the SIM may be suspended.

1 year paid upfront, subsequent year/s by Direct Debit

  • Aberdeen International Airport
  • British Transport Police
  • bruntwood
  • Camden Town Unlimited
  • Securitas
  • CNG
  • Condor
  • entryphone
  • Hilton
  • Horizon Parking
  • JustPark
  • Bauer Media Group
  • Metropolitan Police
  • Morrisons
  • NHS