Question about DCC packets sent to F3 Horn by command stations - Model Railroader Magazine

I am trying to understand how F3 horn play packet commands work.

I know the basic functions 1-4 are in Function Group One as described in the extended packets document ( line 258)

When a command station send an F3 horn play command, does the short horn (when mapped to F3) play ONLY when it receives on ON command?

Does it also play when it receives an OFF command?

Is the decoder expecting to receive an OFF command following every ON command (prior to receiving the next Short Horn F3 On command)?

It was my impression that typical command stations send out many copies of each packet command, so it wouldn't make sense for the Short Horn to play every time it receives in F3 On command (or it would risk playing over and over).

And since F3 is in Function Group One, it wouldn't make sense for the Short Horn to play when it receives an OFF command (so it doesn't play every time you turn the bell ON/OFF)

Any insight in understanding this would be appreciate.