Can I keep my Telstra Super accumulation account open as well as start a Telstra Super RetireAccess income stream?

Yes.

You can set up an income stream under the Government's Transition to Retirement rules if you are over preservation age  (currently age 55) and still working. While you draw an income from your Telstra Super RetireAccess account, you can make pre-tax contributions (salary sacrifice) to your accumulation account to reduce the tax you pay on your take-home salary and boost your super.

We recommend you seek advice from Telstra Super Financial Planning as the strategy involved in implementing this is quite complex.