After you set up your routing then normally you want to validate to check your routing. Call Simulation is the tool for that. Within Call Situation, you can enter the Ingress Trunk, ANI, and DNIS. Then, Class 4 will tell you which Egress trunks will terminate the calls to.
Step 1: Open Call Simulation page
Now, you see the following and this is where you specify the ingress trunk, ANI, and DNIS:
Step 2: Specify your test information
After you click Submit, you will see the following results: