Siemens Enterprise Communications continues to lead the evolution of real-time unified communication's by delivering innovative and customer-centric solutions with measurable financial benefits, and has proven both the technology and the savings for customers. Best of all, our open, standards-based solutions can overlay in-place PBX networks to speed ROI --without the need for untimely rip-and-replace migrations.

In this paper, we’ll introduce the mechanisms of cost savings with SIP trunk consolidation,using Siemens Enterprise Communications’ OpenScape Exchange overlay solution.

We’ll also briefly review the advantages of IP Least Cost Routing (IP-LCR) for site-to-site traffic,since this can also be implemented with the same solution.