A VoIP chipset is a group of integrated microprocessors, or chips designed to work together to enable the transmission of voice through the Internet or other packet switched networks.

At the core of a VoIP chipset is the digital signal processor (DSP), a chip designed to support high-performance, repetitive, numerically intensive tasks.

Surf has developed a multimedia processing solution based on DSP chips from Texas Instruments that is capable of speedy simultaneous processing for Voice, Video, and Data over all networks: IP, mobile, wireline, and wireless. This achievement has rendered single-purpose chipsets (such as VoIP-only, video-only, data-only) obsolete.

The result of Surf's achievement is a cost-effective and scaleable system that allows for step-by-step migration from 'Voice only', to a 'full Voice and Video' system. Triple Play solutions aid manufacturers of telecom equipment to design cost-effective solutions with accelerated time-to-market.

http://www.perfectdisplay.com/zic_VoIP_products_id1050.html
VoIP Semiconductor Product Database

http://www.lightreading.com/document.asp?doc_id=43049
This article provides further information about VoIP Chipsets, DSPs,Cards and Boards.

See VoIP