D430 Series

The OpenVox D430 Series is now the leading 4-port T1/E1/J1 PCI‑E card in the open-source industry. It fully utilizes the Octasic® hardware echo cancellation module to deliver superior voice quality on T1, E1, and J1 interfaces.

The D430 Series is intended to be the most advanced 4-port asterisk® card, offering superior quality in the open-source community. Cutting-edge innovation allows users to adjust the interrupt frequency to reduce CPU load by up to 70 % and adjust the number of interrupts to avoid interrupt sharing or conflicts.

The D430 Series features an embedded Octasic® DSP-based echo cancellation module. The Octasic® DSP-based EC module allows users to eliminate echo tails of up to 128 ms or 1024 taps across all 128 channels in E1 mode or 96 channels in T1/J1 modes. In addition, this module uses Octasic® voice quality enhancement to provide superior sound quality on all calls.

The D430 Series supports industry-standard telephony and data protocols, including ISDN Primary Rate (PRI) protocol families (N. American and Standard Euro) for voice, PPP, Cisco, HDLC, and Frame Relay data modes. Both line-side and trunk-side interfaces are supported.

The D430 Series works with Asterisk®, Elastix®, FreeSWITCH™, PBX in a Flash, trixbox®, Yate™ and IPPBX/IVR projects, as well as other proprietary or open-source PBX, Switch, IVR, and VoIP gateway applications.

Target applications

Voice-over Internet Protocol (VoIP) services

Complex IVR trees

“Meet‑Me” Bridge Conferences

Calling card platforms

VoIP gateways (supporting SIP, H.323, and IAX)

Legacy PBX/IVR services

Voice/data router (replaces expensive routers)

PRI/Switch compatibility – network or CPE

Technical specifications

4 T1/E1/J1 ports with PCI interface for high-performance voice and data applications

RJ48 connector

FPGA design, field-upgradable firmware

Power consumption: 2,6 W minimum, 3,9 W maximum at 3,3 V or 5 V.

Operating temperature: 0 °C to 50 °C

Dimensions: 2U, format: 12 × 6,4 × 1,8 cm

Minimum hardware configuration

Pentium III 800 MHz

128 MB RAM

PRI Switch compatibility

EuroISDN (PRI or PRA) – Q.931/Q.921

Network or CPE

AT&T 4ESS

National ISDN 2

CAS voice modes

DMS 100

Lucent 5E

Optional Octasic® DSP echo cancellation module – EC2128

128 ms tail/channel (across all channel densities)

Octasic® music protection

Adaptive noise reduction

Automatic level control (G.169)

Field-upgradable algorithm

V.25 / V.8 answer tone (with and without phase reversal)

DTMF per Q.24

No CPU load due to echo cancellation.

Does not increase the card's physical size, and no additional slot is required.

EC2128 power consumption: 0,33 W/3,5 W

Operating temperature: 0 to 50 °C