In this section:
Before configuring D-SBC (S-SBC and M-SBC), you must configure the DNS server for M-SBC with the MGT/PKT0/PKT1 IP addresses for Load Balancing Service (LBS). For D-SBC Sig Port service, configure the DNS server for the M-SBC fixed IP address of the packet interface PKT0/PKT1 (if floating IP is not configured on the interface). The IP addresses depend on the deployed network.
Once M-SBC and S-SBC instances are configured, you must configure PSX for making a basic call. For more information on configuring PSX, refer to PSX Provisioning documentation.