Digium® Releases First Hardware-based Voice Compression PCI Express Card for Asterisk® Systems

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Digium® Releases First Hardware-based Voice Compression PCI Express Card for Asterisk® Systems Digium® Releases First Hardware-based Voice Compression PCI Express Card for Asterisk® SystemsDigium® Releases First Hardware-based Voice Compression PCI Express Card for Asterisk® Systems

30 June 2009

HUNTSVILLE, Ala.—June 30, 2009—Digium®, Inc., the Asterisk® Company, today released the TCE400B PCI Express card for use with voice applications based on the open source Asterisk telephony platform. The new card provides hardware-based voice compression and decompression (codec) capabilities to shift transcoding from software to hardware. Using the TCE400B in place of a software-only solution places fewer demands on servers and frees up Asterisk to more efficiently process calls and to provide functionality for phone systems such as call recording, conference calling and interactive voice response (IVR).

Asterisk is the most widely used open source telephony engine and tool kit. By offering flexibility to access and alter the software code, Asterisk empowers developers and systems integrators to create voice over IP (VoIP) communication solutions that match the specific needs of a business. Many businesses use Asterisk as a PBX to manage phone calls, but it’s also commonly used as a gateway between IP and PSTN networks, a telephony feature server and as the basis for call center applications.

In addition to its support for G.729a transcoding, the TCE400B gives Asterisk the ability to convert G.723.1 compressed audio into other formats, a capability not otherwise possible with Asterisk or software-only solutions. The card’s capabilities allow transcoding between simple, G.711 u-law and a-law, and complex, G.729a 8.0 kbit/s and G.723.1 5.3/6.3 kbit/s, codecs. When running in G.729a mode, the TCE400B can support 120 simultaneous transformations; in a mixed G.729a and G.723.1 mode, it supports 92 simultaneous transformations.

“The TCE400B will be of interest to companies using Asterisk to build feature servers, gateways or custom systems and wanting to conserve CPU cycles,” said Bill Miller, Digium’s vice president of product management. “The card’s ability to work with compressed audio in multiple formats also supports its use in complex telephony environments. Overall, the TCE400B will help bring Asterisk into more enterprise telephony environments.”

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