RFC: FSO, filtering signals, and interapplication interfaces

[Michael 'Mickey' Lauer]

First off, thanks for this proposal.

Unfortunately I'm not sure whether this idea is suitable for FSO. I'm not 
feeling too well when thinking about the possible consequences. 

Assuming your primary use case is a call and SMS firewall, I don't think we 
want that in ogsmd. Ogsmd offers simple procedural access to the gsm low 
level functions and as such its signals should not be filtered or altered in 
any way -- otherwise you change application behaviour for any listeners, such 
as call loggers etc.

Going one layer above, it might be more suitable for ophoned, which is the 
object-oriented technology-independent voice call service. Then again, I 
think I would rather change its API to an agent-model than filter signals. 
That way you would get roughly the same effect.

In general though, I question whether these features might be better off 
living in the application layer. Remember that a full fledged telephony 
application will probably not use the oeventsd rules anyways.

Cheers,
--
:M: