What is this restriction code for Nokia 6300?

Pleeeease, I need help for my Nokia 6300 which asks for a restriction code. I've surfed the internet for answers but it still can't do it.

My network is TM (Philippines).

And if I turn the phone on without the sim, it doesn't asks for any restriction code.
I've also tried inserting SMART sim card, but it's the same...the phone asks for a code.

I need help because I'm bringing with me my phone tomorrow, an important day because we'll be having a camp outside our city.

PLEASE HELP.
>_______<

Hai, If you want restriction code you can get it from your network provider or online providers. After getting the restriction code you can check at Mobileunlockguide.com for free step by step unlocking instructions and unlock your Nokia 6300 mobile easily.