Diameter Signaling Router (DSR), 3GPP DRA

Tekelec’s Diameter Signaling Router centralizes routing, traffic management and load-balancing tasks to create an architecture that enables your IMS and LTE networks to grow incrementally to support increasing service and traffic demands. The Diameter solution provides protocol mediation and interworking functions that allow you to manage 2G/3G-to-LTE and LTE-to-LTE roaming seamlessly.

via Tekelec – Diameter Signaling Router (DSR), 3GPP DRA.