Hi,
I suggest to allow the paging codes by CLI. Let us say that your paging code is *80 and your extension is 222. Let us assume that your extensions are 3XX. You can write a custom dial plan like this:
[from-internal-custom]
exten => _*80X./_3XX,1,Hangup
Put this context in the extensions_custom.conf
file and then type in the Linux console asterisk -rx'dialplan reload'
Thank you,
Daniel Friedman
Trixton LTD.