Routing & Softswitch
Ref: Carrier Softswitch Standard
LCR
Least Cost Routing
Direct Telecom Definition • Carrier Industry Standard
An automated routing algorithm that selects the lowest-cost telecom carrier path that meets quality thresholds.
Technical Definition & Carrier Engineering Standards
Modern Class 4 Softswitches use Dynamic Quality-based LCR. The engine analyzes rate cards (rate-decks) in real-time alongside ASR, PDD, and ALOC to route voice calls to the most profitable vendor without compromising call completion.