I have recently joined a compnay as Systems administrator .. the compnay already has NEC Aspire PBX with VoIP card installed .. only normal analog phon externsion are being used in the pbx . I am new to Pbx world and trying to figure out few things .. Can i Use IP phone with this pbx to work as IP ext. we have two factories connected thry Radio link .. if this can be done , i can give few IP ext to other factories as well .. THe person whi has supplies the Hardware is not able to tell us the way to do it .. I can thry web acces easily log on to Aspire webpro console.. can any one sugest easy way of doing an IP phone setup ..