Users can use any unlocked GSM phone with Pix World. However, there is no support available for the phones. The SIM cards work only with unlocked GSM phones. The mobile operates at 850 and 1900 mHz frequencies.
Many network carriers lock the phone restricting it to a particular network only. The phones cannot be used with other networks unless it has been unlocked. Therefore, be sure to unlock the phone before using it. To know about how to do that, read the instructions supplied by original carrier on how to unlock a phone.
If you are a user of World phone user, be sure to check that your phone operates at 850 mHz and 1900 mHz.