[Freeswitch-users] SBC configuration

Hi, I am interested in testing Freeswitch acting as an SBC. Is it simply a matter of configuring the dialplan correctly, using RE's so that inbound calls are just forwarded to our internal PBX and outbound calls from the PBX are forwarded to the VOIP provider? Or do I need to create an application that specifcally creates a new call and then joins the inbound and outbound calls? I haven't been able to find info on the wiki or google re. SBC setup. thanks Ash