The number is not checked. If the command is valid, i.e. matches what has been defined, then it is executed.

Stupid question, but did you check that it is running?

There were some more people mentioning that it didn't work for them but we didn't manage to understand if it is another program intercepting/changing the dbus signals or it is something else.

We have excluded basic stuff like differences between European and US networks and seemed to be more like userspace problem but nothing like a breakthrough.