CallGSM is delivering products for the Global GSM market as well as other united communication solutions to ease the need in a global executive and travelling society. The enterprise is established in UK – London at CallGSM International ltd;44 Upper Belgrave Road; Clifton; BRISTOL ; BS8 2XN

CallGSM offers also web-based communication and foreign calls. We help people to communicate world-wide. That is our motto and we make it a reality, by developing new and innovative voice products for our customers in more than 120 countries all over the world.

It is CallGSM’s main aim to provide high-quality communication everywhere in the world at reasonable prices. Our customers save up to 90% off their telephone costs. Fortune 500 enterprises are among our customers, just like many small- to middle-sized companies as well as private individuals.

We have created a global, independent network. The CallGSM-SIM and phones allows our customers to use this network in a simple and uncomplicated way. Being a mobile radio discounter is something completely different from introducing this national idea to the worldwide mobile radio market comprising over 600 existing networks, which is without any doubt a far more complicated venture.

We do not only offer favourable telephone calls. CallGSM-SIM is intelligent; it will always find the most optimal network and thereby ensure 100% network coverage. With which other GSM SIM can you tape telephone calls while you are talking or have a teleconference?