VocalTec Introduces SIP-Based Softswitch Architecture

VocalTec Communications introduced its "Essentra" SIP-based softswitch architecture for the international long distance (ILD) and national long distance (NLD) markets. VocalTec's Essentra platform integrates high-density media gateways, delivers SIP-based services (such as IP Centrex), and supports legacy PSTN and H.323 networks. The architecture uses a unique SIP-based service integration layer that is transparent to the call control layer and is responsible for maintaining all service and routing logic. Essentra's distributed architecture utilizes advanced fail-over and redundancy mechanisms and runs on Sun Netra servers with Solaris operating systems. The platform is able to integrate with the PSTN using VocalTec's global SS7 connectivity technology. Protocol support also includes interworking for MGCP, MEGACO/H.248, SIP, SIP-T, H.323, SS7, PRI, IUA and SIGTRAN.
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