PBX->PSTN??

Hi guys!! I need your help, i want one of my quintum to send a call to another quintum in my network. eg: Quintum A PBX -> Quintum B PSTN. I config Quintum A as the originator, I defined in the Static Route the IP of the destination(Quintum B) of the calls and its DN but the calls kept going back to PSTN of Quintum A(originator) the calls cant get through Quintum B. What should I do? Can someone send me a documentation on how to do this or a sample Config? Plz help!! 🙂