There are a couple of ways to send calls from the PSTN ports to a certain number (depending on what you are trying to achieve).
If the number is reached through another gateway you need to set up a route on your Quintum. You can do this in the “be” section of the CLI under config. Set your self up a static route to the gateway desired for that number. For example, if I wanted to route telephone number 1 234 567 to IP address 126.96.36.199 I would do the following:
At the Quintum prompt type:
> co be sroute 1
(assuming you don’t already have a static route numbered 1).
> callsig 188.8.131.52
> dn 1 1234567 0 0 2
This will send any calls with a dn=1234567 to IP 184.108.40.206 with a priority of 2.
Obviously you need to set up the rest of your gateways other features but this should give you a head start.
Hope it helps.