New Routing Model Cuts LLM Calls 84% in Telecom Contact Center Tests

A developer published benchmarks of a confidence-gated routing system for telecom customer support, which sends most subscriber tickets to a fast local classifier and falls back to an LLM only when uncertain. Tested on 200 real consumer complaints from the Comcast Consumer Complaints Dataset, the system eliminated 84% of LLM routing calls while reaching 92% accuracy, slightly above a 90% LLM-only baseline. Average decision latency dropped to 56-167 milliseconds, compared with a simulated 307 milliseconds for the baseline and over 25 seconds under API queueing. The author argues the approach also avoids rate-limit failures during surges in tickets, such as those caused by outages. The research was published in a series on the LangGraph framework and is based on the author's own benchmarks rather than independent evaluation.