Hi. I have to configure SER routing and I don't know how to do it, maybe it's something easy for some of you.

All the user numbers that I have are 6-digit numbers beginning with 331xxx. Now I can make calls between them, but I can't make calls to PSTN nor receive calls from PSTN. I have a PSTN Gateway, but what i don't know is how to configure (ser.cfg I guess), to proxy these outside calls to the PSTN Gateway and the incoming calls too (if they begin with 331xxx).

Any ideas will be of great help, thank you in advance

Llanos