Allo 2 Port PRI Card (PCIe) with LEC (4th Gen)- 2E1

Allo 2 Port PRI Card (PCIe) with LEC (4th Gen)- 2E1


in stock
product code : sku - 9373


Allo 2 Port PRI Card (PCIe) with LEC (4th Gen)- 2E1

This 4th generation card is half height and comes by default with both full and half height metal bracket.

The card is manufactured with the highest quality components and PCB in our fully automatic Surface Mount Technology factory.

ALLO supports the AsteriskTM community and has opted NOT to copy the DigiumTM PCI ID, like other manufacturers do unlawfully and against the will of DigiumTM. For you, the customer, this means you are buying a card which will continue to work with DAHDI when DigiumTM, the owner of AsteriskTM, decides to change their code in order to block the rogue manufacturers. Use our patched DAHDI version provided.

Should you choose to purchase the optional Line Echo Cancellation module which uses the industry standard Octasic®DSP, you will also receive for FREE our Conference Room Software. Once installed, the software allows you to set up, schedule and manage conferences which are MIXED IN THE Octasic® DSP.

We guarantee that our card, working directly with DAHDI (no patch required), delivers the same sound quality and performance as the DigiumTM and SangomaTM cards while costing considerably less.

PRI cards today became a commodity since all manufacturers use FPGAs and the same OctassicTM DSP for their Echo Cancellation. Not only our cards perform at par with the larger manufacturers but they also offer the Innovative and Unique PCI/PCIe Rotation System (see video).Available in 4 port, use this card with any of the major open source platforms.

Brand / Features DMA Dynamic Buffer Adjustment Manual Interop Field Firmware Upgrade PCI/PCIe on same board Works directly with DAHDI
Digium Y y Y N N Y
OpenVox Y Y Y N N Y
Sangoma Y Y Y Y N N**


  • SS7 Signaling supported
  • 1, 2, 4, 8 E1/T1/J1 ports with PCI-Express interface for high performance voice applications
  • Fully PCIe Gen1.1 (x1) compliant
  • Optimized per channel DMA streams and hardware-level HDLC handling unload the host CPU
  • Optional OctasicTM DSP Echo Cancellation Module 128ms tail/channel (on all channel densities)
  • PRI Switch Compatibility: Euro ISDN, Network or CPE, AT&T 4ESS, CAS Voice Modes
  • Interoperable with AsteriskTM, FreeswitchTM, YATETM, ElastixTM, TrixboxTM, FreePBXTM …


Technical Specifications

  • 1, 2, 4, 8 T1/E1/J1 ports with optimum PCI-Express interface for high performance voice and data applications
  • TDM channel alignment in hardware (instead of software), for greater voice integrity and reliability
  • Optional OctasicTM DSP Echo Cancellation Module 128ms tail/channel (on all channel densities)
  • Hardware-level HDLC handling to reduce the load on the host CPU
  • Fully PCIe Gen1.1 (x1) compliant
  • DMA Support with 64/32-bit bus master data exchanges across PCIe interface at 250 MB/s in each direction with minimum host processor intervention
  • DMA based data transfer for minimum host intervention and guaranteed data integrity on high volume systems
  • Timing clock mode selection as Slave or Master


Physical & Environmental

1,2,4 Port Specs 8 Port Specs
Operating Temperature 0°C to 50°C Operating Temperature 0°C to 50°C
Storage Temperature -40°C to 125°C Storage Temperature -40°C to 125°C
Dimensions 12.7cm x 6cm x 1.8cm Dimensions 15cm x 6.3cm x 1.8cm
Weight 63g Weight 125g
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Additional information

Weight 1.5 kg


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