I have 1 ISDN line (2 national number) from patton on incoming trunk. actually all call to EXT200 ad ok.

Now i need to send incoming calls from the main number(1)
of to EXT200 and those coming from the ISDN line(2) seconsary to EXT202 how to do ?

Each line will have it’s own DID number, route the calls appropriately, the wiki will explain all.