I saw an add in Amazon http://www.amazon.com/gp/offer-listing/B005SSB0YO/ref=dp_olp_new?ie=UTF8&condition=new
It says "
Apple iPhone 4S 16GB (White) - AT&T", so it means that that iPhone only works for AT&T. SInce AT&T uses GSM so that phone can not be used for any other GSM carriers right?
Ok, but the iPhone 4s also supports CDMA & CDMA do not need any sim card, so will the above phone work with any CDMA carrier?
It seems that even 4s supports both but if the phone was sold as locked phone then the CDMA part was disable in 4s, is it true?
And via versa, ie if the 4s was locked to Verizon then the GSM part of 4s was disable & that phone can not be used for GSM net work, but it can be used for GSM in oversea where Verizon has no competition. Is That true as well? (http://www.cnet.com/au/news/why-you-cant-take-your-unlocked-iphone-4s-to-another-u-s-carrier/)