Call Routing

I have two phone numbers on my line (pstn) and I’d like to route one of them to a IAX account.
Right now you need to enter an extension number to reach the IAX account, I’d rather it just went straight to it according to what phone numbers was dialed.
Can someone point me in the right direction?

DID see here

Disitnctive Ring … P+channels

Thanks rusty;
The Distinctive Ring worked!
Was very simple to setup.