You need to Unlock I-phone from Rogers network lock to use with other network sim card...To unlock it use Remote unlock service...Visit the site Simpleunlocking.com get the Remote unlock service and unlock it easily.Unlocking won't delete any features in the I-phone 3G..It will just remove the network lock and makes the iphone to accept other sim card.Unlock a gsm network locked phone and use with only gsm network sim card..Telus is CDMA Network.