except a few established names, all the others like Netlink, Syrotech, Digisol, whatever all are rebrands of VSOL ONTs only. There is nothing new or special with them. BSNL is just loving chinese crapware so much. and with regards to ur requirement, yes put ur current ONT in bridge mode and use you high quality router for everything else. the chinese ONTs are good for only being used as a dumb converter.