Sorry, I guess I forgot you are not in the US and operate under socialized medicine.
If you didn't know who was calling why not let it go to voice mail? If it was your GF you could have called her back and if it was your H, well, then you avoided a "no reason" call.
I don't suggest just hanging up on him but if he continues to babble on simply tell him you need to go and that is that. That is a boundary. As for his questions about the weekend and next week you could just say that you have a very busy week planned and thus far have not thought much about the weekend and you will have to discuss it another time.
