What is GSM?

In our own words... GSM means you can get on with your day and you are still connected to your property via your mobile phone. That's what we do. We make mobile technology for mobile people. Our products instantly connect you to the things you care about.

If you are using a mobile phone in any part of the world, then you are using GSM technology for your audio phone calls. GSM is the global standard for mobile communications and the basis for all handheld mobile phones. Other mobile technologies such as 3G and 4G are additions to standard GSM technology and facilitate fast data transfer such as mobile internet.

Now, for those that like to know more....

  • The GSM emerged from the idea of cell-based mobile radio systems at Bell Laboratories in the early 1970s.

  • The GSM is the name of a standardization group established in 1982 to create a common European mobile telephone standard.

  • The GSM standard is the most widely accepted standard and is implemented globally.

  • The GSM is a circuit-switched system that divides each 200kHz channel into eight 25kHz time-slots. GSM operates in the 900MHz and 1.8GHz bands in Europe and the 1.9GHz and 850MHz bands in the US. Control Freq GSM products work anywhere in the world.

  • The GSM is owning a market share of more than 70 percent of the world's digital cellular subscribers.

  • The GSM makes use of narrowband Time Division Multiple Access (TDMA) technique for transmitting signals.

  • The GSM was developed using digital technology. It has an ability to carry 64 kbps to 120 Mbps of data rates.

  • Presently GSM supports more than one billion mobile subscribers in more than 210 countries throughout the world.

  • The GSM provides basic to advanced voice and data services including Roaming service. Roaming is the ability to use your GSM phone number in another GSM network.

A GSM digitizes and compresses data, then sends it down through a channel with two other streams of user data, each in its own time slot. It operates at either the 900 MHz or 1,800 MHz frequency band.

Why GSM?

  • Improved spectrum efficiency.

  • International roaming.

  • Low-cost mobile sets and base stations (BSs).

  • High-quality speech.

  • Compatibility with Integrated Services Digital Network (ISDN) and other telephone company services.

  • Support for new services.

Why Control Freq GSM?

We specialise in GSM technology and we use our mobile phones just like you. We understand GSM technology and it's all we do. We supply products to solve problems in everyday life. We create innovative solutions to add convenience and practicality by connecting you, your mobile phone and the things you care about through our GSM systems.

Have questions but don't know where to start?

Call us for advice, 7 days! +44(0)20 3478 0786