(redirected from Soft-Switch)


(1) (Soft-Switch) Earlier software from Soft-Switch, Inc. that converted email messages from one protocol to another using X.400 as a common base. Running on IBM mainframes and Data General minicomputers, Soft-Switch, Inc. became a division of Lotus in 1995. See X.400.

(2) A programmable switch that processes the signaling for packet-based telephony protocols. Also known as a "media gateway controller," "call agent" or "call server," telephony providers use softswitches to integrate PSTN signaling (SS7) with VoIP. Using network processors at its core, softswitches can support IP, DSL, ATM and frame relay transports in the same unit. The softswitch's programmability enables it to adapt to future protocols. See IP telephony, VoIP and SIP.

It Should Be Able To...
According to the International Softswitch Consortium, a softswitch should be able to (1) control connection services for a media gateway and/or native IP endpoints, (2) select processes that can be applied to a call, (3) provide routing for a call within the network based on signaling and customer database information, (4) transfer control of the call to another network element, and (5) interface to and support management functions such as provisioning and billing.

Softswitch Infrastructure
This shows how a softswitch fits into the integrated SS7 and VoIP worlds. (Illustration assistance courtesy of GNP Computers and
References in periodicals archive ?
A natural soft-switch power converter with adjustable dc-link voltage.
While the court appreciated the regulatory regime, its coercion-based framework does not make room for potential soft-switch harms that arise from the unique nature of drug markets and that might not make economic sense.
BeBop Sensors is working now with OEMs in the automotive industry to develop and deploy custom fabric sensors for OCS/safety applications, autonomous vehicles, comfort enhancement and soft-switch control interfaces.
The Sonus PSX Centralized Policy and Routing Server is a central element in Sonus' industry-leading session border controller, VoIP media gateways and soft-switch solutions that are deployed in enterprises and service providers around the globe.
Bucharest, Romania, May 22, 2011 --( sipgate has chosen Yate, the open source project of NullTeam, to power the core of it's soft-switch infrastructure.
The highly futuristic core network is based on ZTE's layered architecture which is currently an all IP environment, and includes the latest core based on Mobile Soft-switch; a robust Mobile Packet Backbone Network for data services; and a billing platform using intelligent network technology to deliver innovative pre-paid and post paid services to users with the shortest time-to-market as well as to allow Madamobil to charge differentially for both voice and data.
This week Wednesday, the mobile operator completed its crossover from the old switch to the new so-called soft-switch.
Utilizing its proprietary soft-switch technology, coupled with its global Tier 1 network, MobileSphere provides its customers with innovative, highly-competitive, market-proven solutions.
By the fourth quarter of 1996, ITS installed a soft-switch technology in the central office, enabling it to offer even more advanced features to subscribers.
Since its acquisition of cc:mail and Soft-Switch, Lotus has also pioneered the integration of groupware with E-mail to provide an even more powerful tool for collaborative computing.
Members of the newly formed group include American Airlines; Canon, Inc.; Data General Corporation; Gold Hill; Hewlett-Packard Company; Philips International B.V.; Prime Computer, Inc.; Soft-Switch, Inc.; Sun Microsystems, Inc.; Unisys Corporation; and 3Com Corporation.
TELECOMWORLDWIRE-August 8, 2011-Neutral Tandem adds voice soft-switch at Telehouse Docklands North(C)1994-2011 M2 COMMUNICATIONS