*astTECS PRI Cards


*astTECS PRI cards are high-performance, cost effective telephony cards available with carrier grade optional hardware echo cancellation. The card allows up to 96 (T1) or 120 (E1) channels and allows integration of legacy telephony systems with emerging Voice-over IP (VoIP) technologies.

*astTECS E1/T1/J1 digital cards are designed to work with Open Source based VoIP platforms such as Asterisk® (e.g. PBX in a Flash®, FreePBX® Elastix®) & FreeSWITCH®. It supports industry standard telephony protocol families. Both line-side, trunk-side interfaces along with advanced call features are supported.

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  • Ease of installation (no patches require for installation)
  • Compatible with Linux and Window OS
  • Optional Hardware echo cancellation
  • Superior voice quality
  • Available in PCIe
  • 1 year warranty on parts


  • Legacy PBX/IVR Services
  • VoIP Services
  • Complex IVR Applications
  • Conference Bridges
  • Calling Card Platforms
  • PRI Switch Compatibility: Network or CPE

Product Bundles

*ast 1-Port PRI Cards *ast 2-Port PRI Cards *ast 4-Port PRI Cards


*ast 1- Port *ast 2-Ports *ast 4-Ports
Number of Ports Single Span E1/T1/J1 Card (PCIe) Dual Span E1/T1/J1 Card (PCIe) Quad Span E1/T1/J1 Card (PCIe)
Channels /Concurrent Calls Upto 30 voice calls Upto 60 voice calls Upto 120 voice calls
Dimension 126 mm X 56 mm 140mm X 63 mm 140mm X 63 mm

Technical Specification:

Optional Hardware Echo Canceller

  • Octasic Based
  • 128 ms Tail per channel
  • G.168–2004 Echo Cancellation in Hardware

Operating Systems

  • Linux Kernel : 2.4 to Latest
  • Windows : XP/Vista/Win7

Voice Platforms

  • Asterisk : 1.4 to Latest
  • FreeSWITCH: > 1.2.7

Line Coding

  • HDB3, AMI, B8ZS

Framing Types

  • T1 / E1 / J1 with D4 / ESF
  • Signaling – CAS / CCS
  • CRC4 / Non-CRC4

PRI – CPE & Network Modes

  • National ISDN1/2 • AT&T 4ESS
  • Euro ISDN
  • Lucent 5ESS
  • Q.931/Q.921
  • Nortel DMS 100

Line Protocols

  • Voice CAS, MRC/R2
  • PRI, SS7
  • HDLC / PPP

Minimum Hardware Requirement

  • 1.6-GHz Pentium IV
  • 512 MB RAM
  • 3.3V or 5V PCI-e x1 slot
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