Digital Telephony Cards

TE235 Digital Cards

TE235F Digital CardSangoma’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.

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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 over (1) RJ45 interface port

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Available Configurations

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

Telephony Cards
PCI and PCI-Express Options

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

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Protocol Support

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

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

For more features, view the Data Sheet.

Digital Card Specifications

Digital Card Specifications


PCI Interface

DSP Echo Canceller (optional)


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