It depends which area you work in I believe. Currently the 25% plan discount and also a monthly $80 credit applies to your Optus bill. There's also access to partner discounts (ie 25% off Dyson) and a smart spending app which has a bunch of discounts for various retailers (ie Woolworths Gift Cards 5% Discount, Uber Eats 4% Discount) and more, depending on where you're located.
All Optus staff gets 25% discount on mobile and home plan. There are extra benefits for the senior leadership team too.
Staff discount available and varied depending on which Optus store you work. 20% Discount on bills. Discount on accessories.
Yes, OPTUS gave its staff a 50% discount.
At the time of my departure, it was $85 off your phone/internet/mobile bill, + 25% discount.