can i use my mobile phone in the philippines?

i'm on contract with tmobile, can i use my mobile in the philippines using a philippine sim card?

After unlocking your Mobile Phone with T-Mobile you can use your Philippines or any other country Sim card freely.You can unlock it easily by using unlock code.To get this code at low cost visit the site TheUnlockArena.com here you need to specify the IMEI number of your phone and Country,Network provider to which it is locked.Then they deliver the unlock code to you through E-mail.Using that code you can unlock your phone easily.After unlocking from Network lock,you can use any GSM network SIM card in any country.This is the easy and permanent unlocking method.

I think it's better if it would be unlock at the country where it was bought because unlocking it in the country itself is far too expensive.

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