I am interested in testing Kamaillio acting as an SBC. The SBC as Outbound proxy server, the IPPhone can register to SIP Server via SBC and make a call via SBC. the topology is bellow

The IP Phone A, The IP Phone B --------- register -------  FreeSwitch (SBC-Outbound Proxy) -------- SIP Server

Could you please help me how to install and configure FreeSwitch as SBC-Outbound Proxy ?