Like maxis, why da hack need limit us to use router for VoIP function? I see the gpon can VoIP also what? And now they don't let us touch the 850a settings firewalled ..... frustration....I dunno if my problem can solve by getting a new gpon/btu unit...

I am getting confuse here, does that mean any router will work on the modem? So why don't they allow such? Definitely their controlling right ? I wan to use my own router, to do so I need to change setting of modem right? And this is where they block access to it.

Well for me I would just solve my problem by myself. Even if it means modding or hacking the router to fit my requirements haha dun care about warranty.