1. Is GSM the most popular standard for mobile phones in the world? Um … Maybe~ But why?

2. The key advantage of GSM systems to consumers has been better voice quality and low- cost alternatives to making calls, such as the Short message service (SMS, also called "text messaging").

3. The advantage for network operators has been the ease of deploying equipment from any vendors that implement the standard. Like other cellular standards, GSM allows network operators to offer roaming services so that subscribers can use their phones on GSM networks all over the world.

4. Now any questions? Q: UMTS is a newer technology, but why it still can ’ t be the most popular standard for mobile phones in the world?

5. Answers overweight handsets with poor battery life problems with handover from UMTS to GSM, connections being dropped or handovers only possible in one direction (UMTS → GSM) with the handset only changing back to UMTS after hanging up, even if UMTS coverage returns — in most networks around the world this is no longer an issue for fully fledged UMTS incorporating Video on Demand features, one base station needs to be set up every 1 – 1.5 km (0.62 – 0.93 mi). While this is economically feasible in urban areas, it is infeasible in less populated suburban and rural areas in Ireland, Severe issues were encountered by users of 3G mobile broadband data modems on the rollout of their mobile broadband. It is not compatible with SMTP email programs and it is not possible to “ pop ” your hotmail to Microsoft Outlook. It is also not possible to receive automatic Software Updates on Apple computers as the internet connection “ times out ”

6. Subscribers by Technology survey

7. Subscribers for All Mobile Technologies survey

8. Subscribers Regional Breakdown survey

9. Conclusion Global System for Mobile communications is the most popular standard for mobile phones in the world. However the W-CDMA network construction has been started (at least in the high-density market), GSM is slowly dying out, but it takes quite long time.