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Digium TE435B 4-Port Digital PCIe Card PRI/T1/E1/J1 (1TE435BF)

The Digium TE435B is a 4-port modular PCI  Express card with hardware echo cancellation that supports T1, E1, J1, and PRI digital circuits.
New: $1,797.75

Digium TE435B Features

  • Provides 4 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 VPM128 echo cancellation module
  • Fully compatible with existing software applications and is fully integrated with the Asterisk Open Source PBX/IVR platform
  • 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


  • Quad 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 (2.8 or later) supported
  • Switchvox 5.8.1 or later

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