Least Cost Routing (LCR) is the automated process of selecting the path of outbound communications traffic based on cost. Within a telecoms carrier, an LCR team might periodically (monthly, weekly, or even daily) choose between routes from several or even hundreds of carriers for destinations around the world.
LCR Depth is the number Termination Vendor Trunk Group attempted before a call is successfully completed or terminated. LCR Depth only applies to Termination Customer Route Plans when the rule action is LCR.
Note:
LCR Depth = (sum of LCR Depth column from CDRs) / (sum of completions)