Jailbreaking iphone4s iOS 6.1.3?

Hi
I have an iPhone 4s with 6.1.3 and i want to unlock it and jailbreak it. Can someone help me with it. I mean links or sources. I bought it from a friend and don't know which operator she was using! Strange but true so please help me in unlocking it

You can unlock your iphone using Remote unlocking method. Which is the safe and secure method to unlock iphone. You can get this service from http://www.theunlockspot.com/apple-iphone-4s/rs16wp9/ here they ask your country, Network name to which it is locked, IMEI number of your iphone. Here they unlock your iphone using latest verions of iTunes.
http://www.bejailbroken.com/ here is a guide to jailbreak your iphone.

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