The K6501 kit is what I was looking for, a remote controlled relay via telephone.
But I need a pulse on the outputs, not a permanent relay. I want to connect the kit to a gate automation system, to be able to open a gate via a telephone call. For that, the output of the K6501 should close a contact on the gate automation system during several seconds and then release it again (like a normal push button).
Is this possible by changing the relay components of this K6501 kit into something else? Or is the permanent relay behavior a function of the programmed controller (PIC 16C55XT)?
Or is it possible to modify this behavior by modifying the source code of the PIC?