... directed between the traditional voice network and the new packet-based networks by the media gateway. The call control is handled by a softswitch, and the features and services are handled by an ... therefore adds further delay. 8. Signaling Gateway A signaling gateway is hardware and software that provides the connection from a softswitch and media gateway to the SS7 network. The signaling ... independence to make the software agnostic regarding the switching fabric (ATM, IP, TDM, etc.) • Interoperability—with multiple vendors' media gateway products, the existing PSTN, and off -the- shelf...