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Digium TE235B 2-Port Digital PCIe Card w/Echo Cancellation T1/E1/J1/PRI (1TE235BF)

The Digium TE235 is a dual port modular PCI Express card with hardware echo cancellation that supports T1, E1, J1, and PRI digital circuits.  As part of Digium's next generation digital telephony cards, it offers higher performance and reliability, includes field upgradeable firmware, low profile form factor, the ability to handle high jitter environments and decreased interrupt times, improving computer processor performance.
New: $1,100.75

Digium TE235B Features

  • Provides 2 RJ45 port for connecting T1/E1/J1 circuits
  • Supports industry standard telephony and data protocols including PRI (North American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes
  • Supports both E1, T1, J1 environments and is selectable on a per-card or per-port basis
  • Improves I/O speed by up to 10 times resulting in reduced CPU usage and increased card density per server
  • Includes hardware echo cancellation module
  • Fully compatible with existing software applications and is fully integrated with the Asterisk Open Source PBX/IVR platform
  • Half-length, low-profile PCIe Card
  • Note: For use only with PCI Express (PCIe) 1.0 compliant slot - x1, x4, x8, or x16 (slots 4, 5, 6, and 7 below)
Digium PC Card Slots


  • Dual span digital cards are perfect for building Asterisk solutions with direct connections to the phone network or legacy equipment. Common applications include:
    • Direct PSTN connections for office phone systems
    • Small call center ACDs with T1/E1 trunks
    • Toll-bypass adjuncts for legacy TDM PBXs
    • SIP trunk interface for legacy TDM systems


  • Asterisk and DAHDI supported (DAHDI 2.8 or later required for TE235)
  • Switchvox supported (Switchvox 5.8.1 or later required for the TE235)

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