The problem in the US is the wireless networks aren't compatible. Sprint and Verizon are CDMA and don't use a sim card. TMobile is GSM (with a sim card) but has a non-standard 3G network. AT&T is the only carrier that is compatible with the worldwide GSM. In the future LTE may help a bit, but as of now TMobile and Sprint have no plans to go to LTE.
So in summary, you can keep your number when switching carriers, but you usually have to buy a new phone. On Fri, Feb 11, 2011 at 5:00 PM, Moandji Ezana <[email protected]> wrote: > On Fri, Feb 11, 2011 at 10:07 PM, Karsten Silz <[email protected]>wrote: > >> Many phones that you get subsidized from a carrier in the >> U.S. or Western Europe are SIM-locked - they only work with one SIM >> card. >> > > Sure, but once the subsidy period is over, the SIM is unlocked, so you > should be free to move around (and, hopefully, keep your number). I've had > the same number and SIM with two carriers and three phones. > > Is this not the case in the US? > > Moandji > > -- > You received this message because you are subscribed to the Google Groups > "The Java Posse" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/javaposse?hl=en. > -- You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/javaposse?hl=en.
