Callee and Caller

[ufahrbach]

Is there a way to distinguish not only the Caller (Caller number and name) but especially the Called number (Callee)?
Background: I have my doorline connected to the Fritzbox which is not signalled via the normal signalling at all. But I have connected my analogue port 2 (on 1 is the doorline) with my analogue input port (which is not in use as I have VoIP only). So when a call comes in port 2 rings and that ring is forwarded to the analogue input which has the incoming number 99999999. The call comes in as unknown. So if I would have the chance to trigger flows via the callee number I could distinguish between doorline call coming in and normal phone call. But there might be other things to be trigger based on the Callee number (e.g. red lights when your mother in law calls you on the office line... :-) )