Digium – 2 Port PRI Echo

Digium – 2 Port PRI Echo

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Quick Overview

Digium Digital Telephony Cards

Dual Span – Echo Cancellation

Digium's dual span digital interface cards support 48 (T1 / J1) or 60 (E1) connections to PSTN trunks over two spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the dual span cards provide the best value in digital connectivity.

Dual span digital cards are available in PCI and PCI-Express form factor. All dual span models be combined with Digium's VPMOCT064 echo cancellation module to provide echo cancellation across all channels. Digium dual span digital cards are compatible with all versions of Asterisk using the DAHDi driver framework.

Product Description

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  • Applications

    • Connect two T1 or E1 trunks to an Asterisk based PBX system
    • Add direct digital PSTN connectivity to Asterisk applications and solutions
    • Create in-line call monitoring and recording solutions


    • Up to 24 (T1/J1) or 30 (E1) simultaneous calls
    • Supports T1, E1 and J1 physical interface connections
    • Optional 128ms hardware echo cancellation module
    • Protocol support includes: ISDN PRI, Robbed-Bit, CAS
    • Industry standard RJ-45 port
    • Available in PCI and PCI Express form factors
    • 2 ports / 2 spans
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