Digital Telephony Cards

TE235 Digital Cards

Sangoma’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, FreePBX and PBXact phone systems, the dual span cards provide the best value in digital connectivity.

Dual span digital cards are available in PCI and PCI-Express form factors. All dual span models can be combined with an Octasic DSP-based echo cancellation module from Digium to provide effective hardware echo cancellation across all channels.

Digital Card Applications

PSTN-Trunking

Use inside a server of your choice, powered by Linux/Windows, to create a SIP-TDM Gateway to allow IP-PBX to route calls to traditional PSTN.

SIP-Trunking

Use inside a server of your choice, powered by Linux/Windows, to create a SIP-TDM Gateway with your  legacy analog based PBXs to replace expensive analog line connections with SIP trunking to allow reduced call costs, reduced line rental, and bring extra flexibility and disaster recovery.

Call Tapping

Monitor and record telephone conversations for lawful call interception.

High Density IVR

Combine Sangoma octal port cards to achieve high density calling to create large scale IVR solutions.

Digital Card Features

Capacity

Up to 24 (T1/J1) or 30 (E1) simultaneous calls over (1) RJ45 interface port

Available Configurations

Selectable T1, E1 or J1 Mode / Half-Length, Half-Height, Digital Card.

PCI and PCI-Express Options

PCI-Express (TE131 and TE133). PCI (TE132 and TE134).

Protocol Support

Protocol support includes: ISDN PRI, Robbed-Bit, CAS.

Hardware Echo Cancellation
Models TE133 and TE134 feature built-in 128ms Octasic DSP hardware echo cancellation.
Learn More

For more features, view the Data Sheet.

Digital Card Specifications

Digital Card Specifications

  • Interfaces: 2 x RJ45 connector for up to 48 T1, 60 E1 voice channels.

Dimensions

  • 2U form factor
  • 127mm x 670mm for use in restricted chassis

PCI Interface

  • PCI and PCI Express
  • Fully PCI 2.2 compliant, and X1 PCI express
  • Single synchronous PCI interface for all ports
  • 32 bit bus

DSP Echo Canceller (optional)

  • G.168-2002 echo cancellation in the hardware
  • 1024 taps/128 ms tail per channel on all channel densities
  • DTMF decoding and tone recognition
  • Voice quality enhancement: music protection, acoustic echo control and adaptive noise reduction
  • No CPU load as a result of echo cancellation
  • Does not increase the physical size of the card, and no additional slot is required

Models

  • 1TE235F - Two span digital T1/E1/J1/PRI PCI-Express x1 card
  • 1TE235BF - Two span digital T1/E1/J1/PRI PCI-Express x1 card and hardware echo cancellation
  • 1TE236F - Two span digital T1/E1/J1/PRI PCI 3.3V/5.0V card
  • 1TE236BF - Two span digital T1/E1/J1/PRI PCI 3.3V/5.0V card and hardware echo cancellation

Where to Buy

Let us Help You
Find a Solution

Buy from a
Local Partner

Scroll to Top