Digital Telephony Cards

TE435 Digital Cards

Sangoma’s quad span digital interface cards support 96 (T1 / J1) or 120 (E1) connections to PSTN trunks over four spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the quad span digital cards provide the best value in digital connectivity.

Quad span digital cards are available in PCI and PCI-Express form factors. All quad span models can be combined with an Octasic DSP-based echo cancellation module 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 per span (96 total T1/J1 and 120 total E1 per card).

Available Configurations

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

Hardware Echo Cancellation

Optional 128ms hardware echo cancellation module.

Protocol Support

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

Digital Card Specifications

Digital Card Specifications

  • Interfaces: 4 ports of T1/E1

Dimensions

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

PCI Interface

  • PCI or PCI Express
  • Fully PCI 2.2 compliant, and X1 PCI express
  • Autosense compatibility with 5 V and 3.3 V PCI busses
  • 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

  • 1TE435F - Four span digital T1/E1/J1/PRI PCI-Express x1 card
  • 1TE435BF - Four span digital T1/E1/J1/PRI PCI-Express x1 card and hardware echo cancellation
  • 1TE436F - Four span digital T1/E1/J1/PRI PCI 3.3V/5.0V card
  • 1TE436BF - Four span digital T1/E1/J1/PRI PCI 3.3V/5.0V card and hardware echo cancellation

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