T series will work on all releases with exceptions:

All releases of software:
T7316 and T7316e
As mentioned the bottom 5 buttons on both rows/sides will simulate an M7310 hence no lines allowed on the top 3 of each row.
The red LED light will not act as an MSG indicator

Software prior to 6.1
T7316e
-Handsfree button will not work, instead it will be the last key bottom right same as M7310.
-Special LCD indicators on the bottom display will not work for the two rows of buttons
-The red LED light will not act as an MSG indicator




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