Change of PIN protected IVR number from 77 to other

[cire00]

I know many user have asked this question but is any "tricks" that we can change that number?
for example importing an old config still works?
Because one of our potential client's boss is using extension 777 and when we setup the PoC server for them, they found that cannot assign ext 777....

 

[PanagiotisL_3CX]

@cire00

The only system extensions you can change are the voicemail and conference extensions. All other system extensions are reserved and not possible to change.