How is traffic distributed between multiple OneStopTel routes and Route Termination Providers per destination?
OneStopTel maintains two routing tables for each breakout: one for Grade B and one for Grade C. Route Termination Providers that meet the quality requirements set for each Grade Of Service are then sorted in ascending cost order (i.e. as per LCR). Therefore, to route a call, there are two steps: OneStopTel identifies the target breakout and finds what the Grade of Service is the Subscriber trying to send us traffic has chosen for that breakout. The incoming call is tried over the Least Cost Provider available for that Grade of Service. If call is rejected, the next least expensive Provider is tried and so on. If we reach the end of the routing table and none of the available Route Termination Provider seizes the call, call is returned back to the Subscriber trying to send us traffic with appropriate codes for call advancement.
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