Can I use a regular Cingular cell phones SIM card and put it in a Go Phone?
HI yes you can use your Normal cingular sim card in the go phone only if it is unlocked one ..Else if the phone is locked to some other network provider then until you unlock it you can’t use it with cingular sim ….You can easily unlock your phone using sites like UnBBLock.com here they are rendering unlock code for all blackberry mobile models at reliable cost .Else if you want to unlock some other mobile then visit sites like Unlock-Zone.com here they render unlock code for all mobile models at reliable cost ..After unlocking your phone you can freely use it with any GSM sim in any countries….