@patricktoh read some of your replies and found useful.
I have recently switched to Maxis via Unifi, and plan to ditch the maxis router and use the ZTE H267A and custom router. may i know if you or anyone have knowledge to do the following
replace maxis technicolor TG784nv3 with ZTE H267A and have the voip ported to ZTE H267A? so i dont need two router.