Sangoma D100 http://snapvoip.blogspot.com/
Sangoma has released the
D100, a PCI or PCI Express
voice transcoding card (converts simultaneous channels of transcoding from one type of codec (e.g. G.711) to another (e.g. G.729)) which is designed for optimum voice quality for low to high density system! Voice transcoding is an essential faction of a
VoIP IP Telephony System and the Sangome D100 supports transcoding sessions to up to 30, 60, 120, 240 or 480 channels of any-to-any voice codec conversion per card.
Among numerous capabilities of the card system, the outstanding features include;
* 30 to 480 transcoding sessions
* Integrates in
Asterisk® and
FreeSWITCH™ * Codecs supported:
G.711, G.722, G.722.1, G.726, G.729AB, GSM-FR, GSM-EFR, AMR, AMR-WB (G.722.2), iLBC, L8 (Linear 8K), L16 (Linear 16K) * Supports Linux (all versions, releases and distributions from 1.0 up)
* Compact 2U form factor
* PCI and PCIe
Here is the press releasel
TORONTO, ONTARIO--(Marketwire - May 4, 2010) - Sangoma
® Technologies Corporation (TSX VENTURE:STC), a leading supplier of hardware and software enabling server-based voice and data communication applications, today announced the launch of a new series of PCI and PCI Express cards enabling up to 480 channels of voice transcoding per card.
"Voice transcoding is an essential, but costly, component of most VoIP applications and networks," said Frederic Dickey, director of product management at Sangoma. "While
software solutions can reasonably handle a handful of channels on a server, our card-based solution allows for hundreds of simultaneous voice transcoding channels in a single server, without compromising on audio quality."
Most IP
telephony applications require the use of multiple types of voice codecs, which are used to digitally compress the voice signals at any given deployment. While voice signals from the Public Switched Telephony Network (
PSTN) always come in the form of the G.711 codec, the VoIP terminal equipment and networks support a variety of voice codecs including G.729, G.726, AMR, etc. VoIP infrastructure most often needs to include the capability to mediate between endpoints supporting different codecs, but this 'transcoding' digital signal processing task is often costly, resource intensive and can affect the quality of the voice signals if it introduces too much
latency or delay.
The D100 card, available in PCI and PCI Express form factors, allows to convert numerous simultaneous channels of voice communication from one type of codec (e.g. G.711) to another (e.g. G.729), without affecting latency or using up precious host CPU resources. The card allows to run 30, 90, 120, 240 or 480 channels of any-to-any voice codec conversion, with unmatched quality.
The D100
software drivers provide "plug-and-play" capabilities for both
Asterisk® and
FreeSWITCH™, two leading open source
telephony projects. With the compatible drivers, the open source telephony platforms can use the D100 cards as seamless voice transcoding resources. This means that existing Asterisk and FreeSWITCH applications can readily start leveraging the D100 capabilities. Further, the open source telephony software can be used as a
gateway or
session border controller to provide network-based transcoding services.
In open source
telephony software, if a hosted
PBX vendor wants to reduce the cost of bandwidth to reach customers' SIP phones via a data connection, the cost, scalability and
latency issues of software-based transcoding solutions would be prohibitive. However, the D100 card provides a reliable and cost-effective alternative.
In a contact center operation, the cost of voice transport over a data link to connect remote agents can rapidly become a sizeable part of the operational budget. Instead, the D100 card allows the contact center to use the low bit-rate codecs for connecting remote agents to centralized infrastructure and local
telephony lines, thereby reducing the cost of connections to remote agents.
"The D100 card allows us to deliver, as an integral part of our hosted contact center infrastructure, the low bit-rate codecs required by our customers, using a flexible, centralized and affordable open source solution," said Matt Florell, president of the Vicidial Group, an enterprise-class, open source call center suite. "It delivers great audio quality in a small
form factor and a very attractive cost per port."
Starting at a list price of US$ 750, the D100 card is currently in customer trials and is expected to be generally available for purchase in the current quarter.
