the term "unlocked phone" normally means that the phone is not sold or tied to a particular network in any way. these phones are typically sim-card phones (not sure if cdma phones can be unlocked) and may feature one or more cell radio options.
the benefit to such phones is that you can use a phone that your carrier does not sell as long as it is compatible with the radio type/frequency. all that is needed is to put your providers sim card into a compatible phone and you're set.
-use a phone of your choosing even if not sold by provider
-can switch providers with the phone easily
-you pay full price
-you still pay the same for your plan whether you use the new phone discounts or not
-you get ZERO phone support in case of damage, not knowing how to work it, etcetera.
what is unlocked phone means?
Is unlocked phone recommended..!!!!
Can we buy it...
Does it creates any problem in future...
A unlocked phone is nothing but the phone is free to all GSM sim in it ...Most phones come locked with network provider due to this they can't be used with other network provider unless you unlock it ...To unlock mobile you can use sites like UnBBlock.com who render unlock code for all mobile Blackberry mobile models ..For all other manufacturers you can use sites like Simpleunlocking.com here they render unlock code for all mobile models .