Pro Mobile Internet

Miscellaneous

Little known yet important facts about GSM/2G - UMTS/3G - LTE/4G

This is a european mobile phone standard (developped by ETSI, valid in every country of the world. It means, you can take your phone there legally, and it will work like at home. Consequently, you can also buy a phone there - or anywhere else.

- 2G was the first cross-border digital mobile phone service available in the world

- 3G improvements: missing Japan & S Korea joined; data speed increased drastically; packet switching introduced to replace line switching (henceforth you could use voice/SMS and data simultaneously); new modulation system avoiding loudspeaker buzz

- 4G improvements: again drastic data speed increase

- 5G improvements: not really clear - first time that China was involved in standardisation work -> ample room for distrust...

When calling a foreign number, do not access the international network via 00 (from Europe), 011 (from North America), 0011 (from Australia), etc. Instead, alway use +, it will work in any country. - Likewise, do save numbers in your phone book using this format (+ country code ¦ prefix/area code ¦ subscriber number), and you can use it without changes, whereever you go. When you're inside your own country dialling a home number, the system will simply discard the '+ country code' part.

The 'free' USA hiding inconvenient (for them) truths?

This Talk contribution - # 6 & 7, starting 'Looking for WPns also interested...' - to Wikipedia's 4G article did not last - harmless in tone but possibly explosive regarding the contents: It was gone without a trace after a few minutes. Gov intervention, despite of 'democracy & state of law'? It appears rather totalitarian. So what do you think the US have to hide?