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Digital Telephony Cards
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B23X Series
Digital Cards
The 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.
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Available Models
- 1B233LF - Two (2) span digital EuroISDN BRI PCI-Express card
- 1B234LF - Two (2) span digital EuroISDN BRI PCI card
Key Features and Benefits
Capacity
2-port/4 voice channels over 4-wire S/T interface.
Modes
Software configurable NT and TE modes (jumper-less).
Available Configurations
Supports PCI and PCI-Express form factors
Half-length, low-profile.
Hardware Echo Cancellation
Onboard DSP-based echo cancellation for superior voice clarity.
Applications
Specifications
Digital Card Specifications
- Interfaces: 2 span 4-wire S/T interface
Dimensions
- 2U form factor
- 127mm x 81mm 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
- 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