sentences:  The HPE Open IP Signaling Transfer Gateway that allows the convergence and delivery of advanced services for fixed, mobile and broadband networks.The HPE OpenCall SIP Network Server is an “all-in-a-box” Session Initiation Protocol network element for next generation and IMS networks, facilitating the deployment and growth of advanced telecommunication services.The HP OpenCall Universal Signaling Platform (USP) connects SS7 and IP SIGTRAN networks and provides a development environments for deploying, 2G, 2.5G and 3G services.