E Emily New member May 23, 2009 #1 a) how do I know what network my cellphone is on? e.g: MHz 1900/1800 b) I have att. am i going to get chraged if i keep changing my SIM card from one phone to another???? Thanks.
a) how do I know what network my cellphone is on? e.g: MHz 1900/1800 b) I have att. am i going to get chraged if i keep changing my SIM card from one phone to another???? Thanks.
