Digital Telephony Cards

B23X Series Digital Cards

B23X Series Digital CardsThe B23X series is Sangoma’s line of BRI telephony cards designed for Asterisk, FreePBX and PBXact phone systems for the European (UK) region. Make up to 4 crystal clear BRI calls on a single interface. All BRI cards support software-selectable digital telephony interfaces for either NT or TE mode without requiring jumpers.

Sangoma’s BRI cards are available in PCI and PCI-Express form factors. All models include onboard echo cancellation to give your calls crystal clear sound quality without the need for additional boards, modules, or backplane connectors.

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.

Digital Card Features

Scalability Icon


2-port/4 voice channels over 4-wire S/T interface.

Build in Transcoding Icon


Software-configurable NT and TE modes (jumper-less)

Telephony Cards


Supports PCI and PCI-Express form factors and Half-length, low profile options.

Echo Cancellation Icon

Hardware Echo Cancellation

Onboard DSP-based echo cancellation for superior voice clarity.

Digital Card Specifications

Digital Card Specifications


PCI Interface

DSP Echo Canceller


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