Sangoma D150 PMC card with 400 sessions - PMC
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.
Overview
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.
Options
The D150 is available in 3 form factors:
| D150-ETH |
D150-BOX |
D150-PMC |
| The Ethernet card (ETH) has an Ethernet port and is installed inside a computer server, it acquires its power from the power supply |
The boxed enclosure (BOX) is an Ethernet card with a metal enclosure and an external power supply. These enclosures can be stacked up to 14 instances on a single 19 inch rack mount |
The Mezzanine Card (PMC) allows hardware manufacturers to integrate the D150 transcoding solution via the PMC standard (IEEE 1386) |
Specification
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)
