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I have an unlocked phone, but it isn supporting my sim. Whats wrong?

April 26, 2017phone SIM supporting unlocked wrong

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I have an unlocked phone, but it isn supporting my sim. Whats wrong?

1 Answer

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There are very important differences in the mobile phone networks around the world. In Australia we have a variety of network types (also called standards): • CDMA (scheduled to be closed during 2008) This is currently run by Telstra and is scheduled for close during 2008. • GSM (the ‘normal’ mobile phone network, 1900MHz) The frequencies can include 800MHz, 900MHz, 1800MHz and 1900MHz. This network standard is used by Telstra, Optus, Vodafone, Virgin and the other carriers except ‘3’ brand. ‘3’ supports 3G (as below) only. • 3G (also known as WCDMA, UMTS, U-SIM) This is the newer standard that allows for Video streaming and internet browsing etc. Supported by ‘3’, Telstra, Optus, Vodafone and Virgin. • NextG (the newest standard) This standard is the very newest technology. It allows for super fast data transfer and very high quality calls. Currently only supported by Telstra. When you buy your phone you need to know what network type you are on (GSM, 3G or NextG) and if the phone is