OpenVox DE210E 2-port ISDN PRI/E1 PCI-E - Echo Cancellation
The DE210E provides an on-board Octasic® DSP-based echo cancellation module. It supports T1, E1, and J1 environments and is selectable on a per-card or per-port basis. The Octasic® DSP-based EC module enables users to eliminate echo tails up to 128ms or 1024 taps across all 60 channels in E1 mode or 48 channels in T1/J1 modes. Further, this module takes advantage of the Octasic® Voice Quality Enhancement to provide superior sound quality on all calls.
The OpenVox DE210E is a half length ISDN (Integrated Services Digital Network) PRI (Primary Rate Interface) PCI (Peripheral Component Interconnect) card. The DE210E provides two single span PRI/E1/T1/J1 ports selectable on a per port basis, which makes it an ideal cost effective option for small to medium sized enterprise applications. OpenVox are a Fonality® Authorized / Certified Ecosystem (FACE) partner and the OpenVox DE210E is officially certified for use with Trixbox®.
The OpenVox DE210E supports industry standard telephony and data protocols, including both Robbed-bit Signaling (RBS) and Primary Rate ISDN (PRI) protocol families for voice and PPP, Cisco HDLC, and Frame Relay data modes. The board drives both line-side and trunk-side interfaces, including call features. The OpenVox DE210E is 100% hardware compatible with Digium® TE210E and uses the same Zaptel/Dahdi wct4xxp device driver.
Standard PC (Personal Computer) hardware can be used along with DE210E cards to provide a low cost migration path from legacy ISDN PBXs towards an Open Source IP PBX based solution. The DE210E is compatible with leading open source IP PBX software such as Asterisk®, Trixbox®, and Elastix® (OpenVox are an Elastix® Strategic partner), which support all the sophisticated features of expensive high-end PBX/Voicemail platforms. Although developed primarily for Open Source IP PBX Asterisk® based applications, the DE210E can be used for any Linux applications/systems that require ISDN connectivity, e.g. Linux ISDN firewalls, VoIP gateways and routers.
- E1 or T1/J1 mode selectable on a per port basis
- ISDN PRI interface: 30 B channels (E1) or 24 B channels (T1/J1), 1 D channel for signalling
- Terminal Equipment (TE) and Network Termination (NT) mode support
- Supports both voice and data modes on its single span, e.g. the card can support 15 channels dedicated to voice for Asterisk/Trixbox and 15 to data
- Meets international standards: Primary rate 2048 kbit/s according to ITU-T G.704 (E1) and 1544 kbit/s according to ITU-T G.704 and JT G.704 (T1/J1)
- Integrated analogue receive and transmit circuitry for long/short haul applications
- FIFO buffers (128 bytes deep) for efficient transfer of data packets
- Hardware based HDLC controllers with support for bit stuffing, CRC check and generation, flag generation, flag and address recognition, and handling of bit oriented functions
- Clock generator for jitter-free system/transmit clocks per channel
- Full hardware and software compatibility: Compatible with most well known brands of open source computer telephony equipment
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