IP Softswitch Featured Article

What is an IP Softswitch?

 
August 21, 2012


By , TMCnet Contributor
 

An IP softswitch is a device used in the telecommunications industry to connect two telephone lines during a call using voice-over-IP and software run on general purpose hardware. It replaces the telephone switchboard, and is most commonly used for connecting VoIP calls with landlines or other VoIP connections.

Working as a gateway among different protocols and software, a softswitch in general allows both sides of a call to communicate effectively. It usually controls the connection services for a media gateway and native IP endpoints, chooses processes that are applied to a call, routes a call within the network based on signaling and customer database information, transfers control to other network elements, and supports management functions such as provisioning, fault and billing.

Reporting and alert features in an IP softswitch might include real-time billing and traffic graphs, profit/margin reporting, call detail records, and sales reports.

The ability to handle voice and chat, and the range of codec support also is a differentiation factor for IP softswitch solutions.

Since the switching is software-based, softswitches provide additional flexibility over hardware-based switching technology, and they allow for programmability and support for current and future IP telephony protocols such as SIP and H.323.

In addition to specifically serving as a gateway for telephone calls, a softswitch also more generally can serve as a gateway for any type of media that is being transferred across a network, including video and chat systems.

Softswitches are typically located in a building owned by the telecommunications provider. This building will have telephone trunks that carry calls to other offices owned by the company, and to other companies by way of PSTN.

IP softswitches also can be hosted. A hosted IP softswitch is a cloud-based service that allows a telecommunications company to use a third-party for the softswitch layer of their network, thereby saving the company from the need to invest, maintain and troubleshoot softswitch hardware.




Edited by Stefania Viscusi

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