Subscribe to the BlogDefinition of UNLOCKED Phones:Unlocked phones are opposite to contract/subscriber phones which are limited to certain phone carriers, but unlocked phones are free in any phone carriers if their network frequencies are matching. Definition of Quad Band Phones:Quad band phones support GSM850/900/1800/1900MHz simultaneously Posted by: lionheartI have 9 months left on my t-mobile contract and I’m content with [...]