A PRI card is a PCI/PCIe telephony card that plugs into a server and connects it directly to E1, T1 or J1 digital phone lines. 3G Callnet supplies Sangoma and OpenVox cards from 1 to 16 spans (30 to 480 simultaneous calls), with optional hardware echo cancellation.
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| Spans (ports) | E1 voice calls | Sangoma | OpenVox |
|---|---|---|---|
| 1 | 30 | A101 | D130 |
| 2 | 60 | A102 | D230, D210 |
| 4 | 120 | A104 | D430, D410 |
| 8 | 240 | A108 | D830 |
| 16 | 480 | A116 | D1630E |
Card or separate box? See PRI gateways. Basics: E1 vs T1 PRI explained.
Single Span T1/E1/J1 The industry’s first affordable single span T1/E1/J1 card with available Telco-grade hardware echo cancellation — designed for optimum voice support for smaller systems.
The Sangoma A102 card: Two spans of optimized voice and data over T1, E1, and J1 available with Telco-grade hardware echo cancellation.
Four-Span T1/E1/J1 The Sangoma A104 card: Four spans of optimized voice and data over T1, E1, and J1 available with Telco-grade hardware echo cancellation.
Eight-Span T1/E1/J1 Eight spans of T1, E1 or J1 available with Telco-grade hardware echo cancellation – the ultimate high-density solution
The highest density digital interface card in the market.
OpenVox D130 Series is now the leading single port T1/E1/J1 PCI-E card in the open source industry. It supports up to 32 channels in E1 mode or 24 channels in T1/J1 modes. It takes full advantage of Octasic® Hardware Echo Cancellation Module to deliver the superior voice quality over T1, E1, and J1 interface.
1 T1/E1/J1 ports;
Up to 32 channels in E1 mode or 24 channels in T1/J1 modes;
Support protocols PRI, SS7, R2;
OpenVox D230 Series is now the leading 2 port T1/E1/J1 PCI-E card in the open source industry. It takes full advantage of Octasic® Hardware Echo Cancellation Module to deliver the superior voice quality over T1, E1, and J1 interface.
OpenVox D430 Series is now the leading 4 port T1/E1/J1 PCI-E card in the open source industry. It takes full advantage of Octasic® Hardware Echo Cancellation Module to deliver the superior voice quality over T1, E1, and J1 interface.
OpenVox D830 Series is now the leading 8 port T1/E1/J1 PCI-E card in the open source industry. It supports up to 256 channels in E1 mode or 192 channels in T1/J1 modes.
OpenVox D(E)1630E is a 16 T1/E1/J1 ports superior card which supports up to 480 concurrent calls in a single PCI Expression slot. With high performance, OpenVox D(E)1630E is compatible with Linux operating system and most of the commercial servers and motherboards. In addition, The on-board Octasic® DSP-based echo cancellation modules enhances the audio quality greatly as well as reduces CPU usage so as to optimize the system performance.
The D210 Series offers 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 64 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.
OpenVox D410 Series is the worldwide affordable single port T1/E1/J1 card and delivers the great voice quality over telephony systems. It supports up to 120 voice calls or 8.192 Mbps of full duplex data throughput over four T1, E1, or J1 lines. It takes full advantage of Octasic® Hardware Echo Cancellation Module.
3G Callnet offers PRI cards that are high-performance and cost-effective telephony cards available with carrier grade optional hardware echo cancellation. These PRI cards are inexpensive and integrated with advanced technology to provide the best voice support.
Note: Want to improve enterprise-wide connectivity with Cost-effective PRI Card?
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A PRI card is an interface card for a computer server that connects it to digital E1/T1/J1 telephone lines, so open-source and commercial PBX, IVR and dialer software (such as Asterisk) can make and receive calls on those lines.
Each E1 span carries 30 voice calls. A 1-span card handles 30 calls, 2 spans 60, 4 spans 120, 8 spans 240 and 16 spans 480.
It is recommended. Echo cancellation removes the echo created when calls pass between digital lines and VoIP, gives better voice quality and reduces CPU load on the server.
E1 (used in India, Europe and Australia) runs at 2.048 Mbit/s with 30 voice channels. T1 (used in the US, Canada and Japan) runs at 1.544 Mbit/s with 23 or 24 channels.
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