Tekelec (Booth 5915) introduces its TekCoreSIP Signaling Router (SSR). This capability was developed to provide a core signaling and session framework for the appropriate expansion and optimization of the next-generation network. With TekCore’s SSR functionality, operators can expand their current next-generation network and offer next generation, multimedia services without the overhead of deploying a full-scale IP multimedia subsystem (IMS) network. TekCore SSR provides centralized session routing for softswitches and enables core signaling capabilities. For example, the softswitch can route all calls to TekCore by default, where the TekCore SSR will make Layer 5 SIP routing decisions using more advanced routing algorithms, to forward the SIP request more efficiently to the appropriate destination. TekCore SSR also enables seamless service orchestration and advanced options such as egress routing, which increases efficiency of SIP routing. The TekCore SSR introduces session control to the next generation network and provides network interworking between the TDM and next-generation network domains. It lets subscribers access legacy, next-generation and also future IMS-based services. While some signaling and session control products either address the public network, next generation network or IMS domains, the TekCore Session Manager—supporting SSR and CSCF functionality—can support signaling and session control in both the next-generation network and IMS domains while providing a linkage to SS7 signaling in the public network. This capability allows an operator to support a hybrid network architecture that supports services across all three domains and facilitates the gradual migration from the public network to the next-generation network and, eventually, the IMS.