GSM intercoms, designed & built by hand in Great Britain, for people who assimilate their own passions with high quality. For people who appreciate the finely considered differences between average and exceptional, the new ALPHA-4G voLTE 'GSM intercom' delivers. 

ALPHA-4G is the evolution of GSM intercoms; and our best answer to every other GSM intercom that exists.

Our goal is to be the professional Installers' no. 1 choice for remote online management & 7-day support but also the most advanced, integrated and future-proofed GSM intercom available. When you want the best GSM kit, think ALPHA.

ControlFreq made it's first GSM intercom in 2010. We made a PCB to fit inside a Videx 4000 series 1-4 button module. The 4000 series enclosures looked nice and, because they're half plastic, they were cheap.  It served it's purpose at the time as we ventured toward producing our own enclosures. ALPHA-4G is what we created. 

ControlFreq went on to become the go-to access control provider to the on-demand parking industry, creating OEM branded GSM intercom systems, for service-related 'access control management solutions'. ControlFreq GSM intercoms with inbuilt 'API-managed' access control are employed by parking operators to enable (and remotely manage) seamless, secure user access to gated parking, ala 'Airbnb of Parking' – using  ControlFreq 100% mobile technology!

While the competitors' GSM intercoms drift backwards into the shadows, the ALPHA-4G GSM intercom range  demostrates superior technological progress, and outstanding British design & engineering, with a fine attention to detail.

ALPHA-4G GSM intercoms come with a 5-year replacement warranty – standard. Backed by reliable 7-day phone support & powerful online management by app, web or API – We provide and support online tools to simplify access control user management of unlimited number of client locations.

ALPHA-4G has industry-standard access control inbuilt supporting a range of access methods to suit most vehicle access to secure parking facilities. Choose from ANPR, long-range RFID, QR-code reader, PIN keypad, proximity and secure-ID remote keyfobs.

Take ALPHA-4G to the next level. Make it your own. Using our REST API, get an OEM branded web-based front-end to sell with your ALPHA-4G kit. ALPHA-4G is about creating and sharing good British products professionals trust and rely on.

 ALPHA-4G | GSM Intercoms - Handmade in Britain 🇬🇧

 ALPHA-4G | GSM Intercoms

Premium 1 way with keypad - 4G GSM Intercom 

While being developed over the past 2 years, the ALPHA-4G range of GSM intercoms had one clear objective – to be the professional Installers' no. 1 choice for aethetics, build quality, reliabilty, functionality, easy online management and technical support. With s 5-year replacement warranty, the 1 way with keypad is the best value GSM intercom available. 

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Online Management

ALPHA-4G GSM intercoms are the evolution of GSM intercom technology. Using our industry-beating online system management, Installers & Integrators are able to offer paid managed services to end customers.

What our customers say...

Called for support on a 10 year old GSM Intercom and blown away by how helpful this firm are. Highly recommended to trade & end-users alike!

Andy Howell - TRADE Installer 

Recently purchased a number of temperature sensors for some critical rooms and the support provided to set up and configure was phenomenal. Couldn't have asked for better, the after-sales help and guidance was first class.

Denise Laing - Property Manager (CBRE)

Fantastic to work with, regular suppliers of ours for years now. Looking forward to more work together in years to come.

Calvin Fergason - GATE automation ENGINEER (AUTOMATE SYSTEMS)

Always immediately available to help with tech issues and very knowledgable. I can’t recommend ControlFreqUK more, if only all customer service was like this, Keep it up!

Nick Howes - Alarm engineer

Great customer service and back up. Equipment works without fault, talked through step by step commissioning sequence. Highly recommended!

Lee Barnes - Security integrator

What a great company to deal with. A quality product at a good price. The service is literally the best Ive experienced. Whenever I've needed support its been pretty much immediate very impressive. Thank you.

Dean Burton - Access Control Installer