Telecom Routing

Description

One of the primary strategies in delivering cost effective telecommunications services is known as Least Cost Routing. This is the process where all possible routing choices are evaluated based on their cost. The first or optimum choice is considered to be the one with the lowest associated cost. Realistically there are other factors that need to be considered. Other than cost the greatest consideration is call quality. There may be several criteria that are used to evaluate call quality. Among them are the ability to complete the call, the fidelity of the speech signal and the time needed to have the call answered. The telecommunications industry has developed metrics to measue and quantify the performance of their routing decisions. Among them are the ASR (Answer Seizure Ratio), ACD (Average Call Duration), and Call Setup Time or PDD (Post Dial Delay). These indicate the probability that the call will be answered, the length of time of the average call, and how long it will take for the call to receive a ringing signal from the called party. See Telephony Online, Least-cost routing:trickier than you think http://telephonyonline.com/mag/telecom_leastcost_routing_trickier/

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