no that would not work at all unless you are calling the police. the sim card contains memory that the company puts on it like what type of data you have. when you insert a sim card the phone checks to see its data. if you insert it nothing will happen exept it will say no sim card emergency calls only
yes but you wont have service just only wifi and if you want you can have any Sim card for any company that offers a Sim card
Yes you can but you will not get the benefit of the 3G network speed, you will only get EDGE. Also this will require an iPhone data plan change and if you had the unlimited plan on the iPhone 3Gs you will lose it and you will not be able to get it back.
It depends on your carrier. If your carrier is AT&T, it would add a Data Plan to your bill without further notice. According to the AT&T website: "AT&T is Apple's exclusive carrier partner for iPhone in the United States. An eligible data plan for iPhone is required. This data plan covers data usage in the United States and does not cover international data usage and charges. If AT&T determines that you are using an iPhone on your account without an eligible data plan, AT&T reserves the right to add an eligible data plan to your account and bill you the appropriate monthly fee."
No. And if you use the "internet" you will be charged per byte used. You will need to call ATT and select a data plan.
Yes, but if your flip phone's plan is using prepaid plan, you wont be able to .
no
No.
No
Yes the iPhone uses sim cards. Depending on the iPhone you want to put your sim in. If its the original - the 3gs yes but the iPhone 4 or 4s not. Side note, you may not get all services because you need to add a data plan.
Yes, but only if you unlock you iphone
any AT&T phone that can take that sort of sim card.
Yes, Yes you can.
You put a sim card in it.