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Shenzhen, China –March 4th, 2014 OpenVox Communication Co.,Ltd, a global leading provider of the best cost effective open source Asterisk® telephony hardware and software products, has announced to release an 8 port T1/E1/J1 interface cards – D830 series, dedicated in making more large volume concurrent calls or install more telephony interface cards with an asterisk server, is now available worldwide.

OpenVox D830 series PRI card is now the leading 8 port T1/E1/J1 interface card which supports PCI or PCI-E bus and provides some superior quality such as adjusting the interrupt number, reducing the CPU load up to 70%, modifying the interrupt frequency, supporting firmware upgrade onsite, etc. For high performance voice and data applications, D830 series card offers an on-board Octasic® DSP-based echo cancellation module to eliminate echo tails up to 128ms or 1024 taps across all 256 channels in E1 mode or 192 channels in T1/J1 modes.

“We are proud to announce the high density digital telephony cards to meet the fast developing market. The new digital card will enable a single communication sever to maximize the system performance and efficiency.” said Lin Miao, the president of OpenVox “We keep the superior quality of the OpenVox advanced series cards as well as the cost effective price to ensure it worth every penny of your investment.”

The D830 series PRI card will be ready for worldwide shipping today. Please contact your sales representatives for your partner price or you can simply email us at This email address is being protected from spambots. You need JavaScript enabled to view it. for any enquiries.

OpenVox and the OpenVox logo are the registered trademarks of OpenVox Communication Co Ltd. All other trademarks are the property of their respective holders.

(E)represents with optional hardware echo canceller

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