Basic SIP SRST configuration example
voice service voip sip bind control source-interface Gi0/0 bind media source-interface Gi0/0 registrar server voice register global max-dn 140 max-pool 35 voice register pool 1 id network 10.x.x.x mask 255.255.255.0 codec g711alaw system message Backup Telephony
Crystal Clear Insanity 