There is no quality
ONT is available for BSNL Ftth because the LCO is respoy for Last mile connectivity with OLT and ONT and Fiber. So they look for cheapest option available in market. Very few who deploy
GPON with highoend equipment.
Ex cost for 4 port
EPON OLT
Any Chinese brand VSOL remake (
optilink,Syro,DBC etc ) :42K
Same Brand 8 Port GPON : 100K
And for Genexix 8 Port GPON : 170K
Nokia 8 GPON : 190K
Now price for ONT is also differ by few 100s in Nokia and Genexix