How to link iPhone 4 to flip phone?

My phone came without a sim card and i have a iPhone that i want to use but with the same plan as my flip phone. Is there any way i can connect them together so i can use the flip phone plan on the iphone?

You can't do what you want to do.

Even if you had a sim card for your phone, your provider would discover that you are not using the phone that originally came with your plan and charge you more.

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