C   Centurion has embraced the benefits of mobile technology and have included this in their products.

1)      Intercoms - G-SPEAK ULTRA enables you to answer your intercom from anywhere.  The G-   ULTRA is a remote monitoring and control system which is GSM enabled. 

2)      Gate motors - Intelligent monitoring of CENTURION gate motor status. The G-ULTRA integrates      seamlessly with the new D5 SMART sliding gate motor.


C    Centurion offer free activations and notifications for life with the G-REMOTE mobile app.

What is GSM?

GSM technology is cell phone technology.  GSM stands for The Global System for Mobile Communications. It is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as cell phones and tablets.  "GSM" is a trade mark owned by the GSM Association.  The decision to develop a European standard eventually resulted in a unified, open, standard-based network which was larger than that in America. 

Using this powerful technology makes life more convenient and easier.  Everyone has a cell phone and it is not just for making phone calls.  Our smart cell phones have become mini computers. This puts huge power in our hands, in only 8 x 16 cm. 

The GSM (2G) has evolved into 3G, 4G and 5G.  5G is roughly ten times faster than the newest 4G, allowing speeds of around 200Mbps. It’s much faster than fibre – for now. 

GSM in South Africa

Vodacom launched its 5G network, in May 2020, following the introduction of Rain’s network the year before.  MTN now also offers 5G in certain areas. Rolling out 5G means a lot more cell phone towers and that takes time.

Due to the radio frequency that 5G uses, high-frequency waves which enable faster data speeds but don’t travel as far, it needs more base stations to work. Existing cell phone towers can be upgraded but network operators will also need to build more infrastructure.

Features of GSM:

One of the key features of GSM is the Subscriber Identity Module, commonly known as a SIM card. The SIM is a detachable smart card containing the user's subscription information and phone book. This allows the user to retain his or her information after switching handsets. Alternatively, the user can change operators while retaining the handset.

Technical details

The structure of a GSM network


GSM uses General Packet Radio Service (GPRS) for data transmissions like browsing the web.