sorry i dont know too much about this, does this mean i will be able to use it fully or only pars of it? also i changed my number from vodafone to 2degrees am i able to change it back to use this phone?
The people you buy it off should be able to tell you whether the phone is locked to Vodafone or not. Usually it is only the low end phones that are locked and I wouldn't expect the 625 to fall into this category. If it isn't locked you almost certainly will be able to use it on 2degrees. You can certainly switch back to Vodafone too, but you might have a break fee to pay if you are on a fixed contract.