Sometime overnight our Caller ID and callsign were switched on. The daft thing is that they said it would be available today and to ring back to get the callsign number today. But they neglected to tell me that the department which would tell me my call sign number is not actually open on a Saturday. Fortunately I realised and checked yesterday in case they could tell me. There is not a lot of difference between the call sign rings to tell, the second number has one long burst rather than a brrr brrr thing.