Digital Telephony Cards

TE435 Digital Cards

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.

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.

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 Recording Icon

Call Tapping

Monitor and record telephone conversations for lawful call interception.

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High Density IVR

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

Digital Card Features

Advanced Call Routing Icon

Up to 24 (T1/J1) or 30 (E1) simultaneous calls per span (96 total T1/J1 and 120 total E1 per card).

Telephony Cards
Available Configurations

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

Echo Cancellation Icon
Hardware Echo Cancellation

Optional 128ms hardware echo cancellation module.

Supported Phone Systems Icon
Protocol Support

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

Digital Card Specifications

Digital Card Specifications


PCI Interface

DSP Echo Canceller (optional)


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