changing outbound call ID # on a PRI 1

[cellrebral]

I have a question that hopefully has an easy answer that I am just not seeing. We have an 8700 and one of my trunks is a PRI used for outbound calling, as well as inbound DID calls. When we use it for out bound calling, the outbound number that is displayed to caller ID is a non-existent number within our system. How can I change the outgoing displayed number to reflect our main number instead of this non-working number. I know the easy way is to make this nonworking DID number simply forward to our main number, but the number displayed to caller ID would still not be our listed main number. Any help would be greatly appreciated.

 

[BIS]

change public-unknown-numbering 1

or on older releases

change isdn pub

 

[cellrebral]

Thanks for your prompt and accurate response. The first command worked. I forgot to mention that my S8700 is a G3xV12 software release 12. I just had to do one more step which was to cha tru ( # of trunk for inbound/outbound) then on page 2 under trunk features changed send calling number from n to y.