QBZappy,
I agree in principle that the "Oleg Method" should be incorporated into the firmware by default. However, there should be a check box to uncheck if we do not wish to use it on some specific spX's.
I use the Oleg Method on some spX's, but on others where I use "through-dialling" it's not possible to protect all rules with the Oleg Method. Consider:
Voice Services > SP2 Service > X_InboundCallRoute:
{(Mcot)>(Msp1):sp1},{(Mcot)>(<**2:>(Msp2)):sp2},{(Mcot)>(<**8:>(Mli)):li},{(Mcot)>(<**9:>(Mpp)):pp},{(Mcot)>**0:aa},{>1234567:ph}
Only this rule {>1234567:ph} uses the Oleg Method. All the other rules depend on CallerID for protection with the allowed CallerIDs stored in "cot". The other rules need the callee section to detail the allowed numbers that may be called on that route, so the callee section cannot be used for the Oleg Method.
Anyhow, I'm really a +1 for your request so long as there's an opt out!