This is the setup required on the Ericsson BP250/BP50 PABX
for the use of Portable COS to change the facility cost:
While the trial license is running, create 100 mobile extensions.
Give them fictive numbers, use these numbers to do portable COS.
Setup the rest of the extensions to only dial speeddial numbers.
In other word create speed-dials to be used as account codes.
Speeddial overrides the barring, therefore need to change the
facility COS to block it.
Then program the string into a speeddial number:
*72*pin code*extension#.
Set facility cost on trunks (this will allow dialing with speed-dial,
without using an account code to dial).