The latest offering from our transcoding cards family adds more deployment options for the embedded markets, where host-based processing is restricted and the small form-factor of appliances limits the addition of PCI cards.

30 to 400 transcoding sessions
Works on Asterisk® and FreeSWITCH®
Compact 2U Form-Factor, Stand-Alone Boxed
Enclosure or PCI Mezzanine Card Option
RJ45 Ethernet Interface

Most IP telephony applications require the use of multiple types of voice codecs, which are used to digitally compress voice signals, to save on bandwidth requirements. While voice signals from the Public Switched Telephone Network (PSTN) always come in the form of the G.711 codec, the VoIP terminal equipment and networks support a variety of different voice codecs including such as G.729, G.726, AMR, G.722, iLBC, etc. VoIP infrastructure most often needs to include the capability to mediate between endpoints supporting different codecs, yet this functionality often requires digital signal processing tasks that are often costly, resource-intensive and can affect the quality of the voice signals if it introduces too much latency and delay.

The D150 card allows to convert numerous simultaneous channels of transcoding 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
running up to 30, 60, 120, 240 or 400 channels of any-to-any voice codec conversion, with unmatched quality. All codecs are fully indemnified; no additional licensing is required for their use.

Software
Support for Asterisk and FreeSWITCH
Transcoding API in C
Media flows in and out of Ethernet ports
Codecs supported: G.711, G.722, G.722.1, G.726, G.729AB, GSM-FR, GSM-EFR, AMR, AMR-WB (G.722.2), iLBC
Dimensions
D150-ETH: 133.3mm x 58.4mm
Compact factor for use in restricted chassis
Includes low profile bracket for installation in 2U chassis
D150-BOX: 139mm x 70mm x 29mm
D150-PMC: 149mm x 74mm
Operating Systems
Windows®
Linux (all versions, releases and distributions from 1.0 up)
Certifications
Emissions: FCC Part 15 Class A, CISPR 22, CISPR 24, EN 55022 (pending)

Power
D150-ETH: 2A @ 5V (10W) via molex cable
D150-BOX: 2A @ 5V (10W) via external power supply
D150-PMC: 2A @ 5V (10W) via PCI interface
Temperature
Temperature range: 0–50°C

Network Interfaces
Ethernet Port: 100Mbps

Production Quality
ISO 9002