Short for software switch
, a softswitch is an API
that is used to bridge a traditional PSTN
by linking PSTN to IP
networks and managing traffic that contains a mixture of voice, fax, data and video. Softswitches are able to process the signaling for all types of packet protocols
. Softswitch is a software-based switching platform
, which is opposed to traditional hardware-based switching center technology. Softswitches also are based on open
systems, another difference between them and traditional proprietary
hardware switching systems.
Softswitch is also called media gateway controller, call agent and gatekeeper.