iphone 4s ios 7.0.4

i have iphone 4s gsm or cdma (i don't remember what the model)

and i now need rsim buy i don't what i need for unlock my iphone to israel carrier



please show my what the model i need and if it support ios 7.0.4 and from where i can but it (Priority Site there Free shipment)

via Welcome to gsm-tips http://forum.gsmhosting.com/vbb/f819/iphone-4s-ios-7-0-4-a-1761240/