What is the personal unlocking code for a Nokia 6234?

Hi you can purchase network unlock code for your Nokia 6234 mobile from sites like Unlock-Zone.com for affordable cost .You first check that whether the code is available for your country and network provider .If yes then pay for it and purchase the code then visit sites like MobileUnlockGuide.com to get free instructions about how to use that code and unlock your phone .After unlocking your phone you can freely use it with any GSM sim ..