About this task
Routing at each node occurs through AAR, ARS, and UDP. Calls to nodes using SBS trunking are initially steered to the SBS trunk group for the target (terminating) node. When the SBS Terminating Node returns a complete number to the SBS Originating Node the bearer call is established using ARS and the call is transported over standard bearer facilities (not the SBS trunk group). The bearer always originates through ARS but the complete number may be modified and passed to other routing capabilities (AAR or UDP) and sent through private facilities.