No, that's not a typo. Customers are reporting SIM card failures across all carriers, including CDMA-based Verizon and Sprint, which actually use the micro SIMs included in the iPhone 4S to roam on ...

Pay-as-you-go cell phone provider Straight Talk employs SIM cards, allowing you to use your own unlocked GSM or CDMA phone on the network or purchase one of the phones that the company offers directly ...

After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

Following Apple’s media event in San Francisco this afternoon to reveal the new iPhone 5 and a slew of other products, the company began detailing devices further on its website. According to Apple’s ...

Apple has posted a support document detailing the differences between GSM and CDMA iPhones, and the AT&T CEO criticized Apple's App Store business model, touting instead an interoperable ...

With the introduction of the CDMA iPhone 4, industry observers had expected China Telecom to become China's second telecom company to carry the Apple smartphone, but no official launch plans have been ...