BLF for Time Condition with password on SNOM

Hi all

I struggling at the moment with a configuration, to program a function key with BLF and switching the Time Condition on the SNOM phones. The BLF should be visualize the status of the Time Condition.

At the moment and just for testing, I need two function keys to solve it:
blf sip:*[email protected]
speed *[email protected];dtmf=123456#

I think I have to realize it with XML, but I try a lot and can’t get any solution.

Maybe someone can give me a hint or an example? Would be nice.

Thanks a lot