Decent discount, given everywhere else appears to be $599.
Tip: If you were interested in signing up to a 5G mobile or mobile internet plan to go along with this modem- the good guys and jbhifi have several promos going on at the moment.
I know pricematches aren't ozbargain deals- but if you were interested in stacking this telstra discount for the modem AND one of the jb or goodguys deals I don't see any reason why you couldn't.
For instance- the good guys (who do pre purchase pricematching like JB) currently offer a $250 egift card if you sign up to a 12 month 150gb 5G mobile broadband plan:
(Under "latest Telstra deals", turnoff adblocker).
No reason you couldn't get a pricematch from goodguys for this modem @ $479 and then use the $250 egiftcard on the modem.
= $229 modem cost + 12 months (150gb) of 5G internet for 69/month is pretty good?