– Rapid Retrofit Solutions for
2G/3G & Landline Upgrades 

ControlFreq combine 4G-VoLTE IoT hardware, Cloud management software & multi-network Global SIM connectivity to help Installers & Integrators upgrade legacy systems. ControlFreq are end-to-end solution providers for 'mission-critical' applications, supporting professionals 7 days by phone.

Legacy Retrofit Upgrades trusted by...

Modernising Emergency
Lift Phone Communications
ready for PSTN shutdown 

– with digital voice calls fully compliant with BS EN81-28:2022

Turnkey Retrofit Solution Providers...

4G/IP SIGNAL COMMUNICATORS
– BT & CSL Alternative Solutions

Professional alarm signal communicators to report alarm signals & fault events directly to users, 24/7/365 alarm receiving centres [ARC's] and/or WebAlarm® web-based alarm receiving & mobile hardware connectivity platform.

SMS, VOICE, EMAIL, ARC & CLOUD MONITORING
PSTN LANDLINE UPGRADE SOLUTIONS
– Retrofit Systems to maintain service

Reliable PSTN landline simulators & mission-critical communication systems to upgrade fixed landline systems to continue to operate over 4G-VoLTE & SIP voice technology, with best-in-class cloud-based management. 

EMERGENCY LIFT PHONE UPGRADE SPECIALISTS
MOBILE ACCESS CONTROL
– for Multi-door & car park applications

End-to-end booking, payment & mobile access control utilising 4G mobile technology for a hybrid fusion of access control with cloud management, monitoring & API integration. 

CLOUD-BASED ACCESS CONTROL
GSM INTERCOMS (4G-VoLTE AUDIO)
– The future mobile voice comms 

As the 2G, 3G and PSTN landline infrastructures fade into history, the future standard for mobile audio communications is 4G-VoLTE. All ControlFreq GSM intercoms are VoLTE enabled.

CLOUD-MANAGED GSM INTERCOMS
CONTRACT SIM CARDS
– Next Day Delivery

Hassle-free contract SIM connectivity. ControlFreq manage SIM cards in-house for maximum support visibility & single point-of-contact for billing, connectivity and support. No complicated contracts – simple terms apply. 

HASSLE-FREE SIM CARDS FOR GSM SYSTEMS
ADVANCED CLOUD MANAGEMENT
– with API Integration

ControlFreq offer powerful cloud based management platforms to manage and monitor access control, fire alarms, CCTV, intruder, ANPR and custom monitoring or control applications. Designed for professionals with not time to waste. 

PROFESSIONAL REMOTE MANAGEMENT