Sangoma A500 Digital BRI Telephony Card

Sangoma A500 Digital BRI Telephony Card

Sangoma A500 S/T BRI telephony card delivers superior audio quality and scalability from 2-24 ports of BRI, all using a single interface slot on your server! Simply add a remora daughter board to expand up to 24 ports. That’s up to 24 simultaneous PSTN calls in a 2U form factor. Its module design allows it to be configured as TE or NT by simple inverting the colour-coded module! Optional on-board telco-grade echo cancellation offers superior audio quality as well as reduced CPU usage providing optimized system performance.


  • 2-24 port scalable BRI card of mixed TE and NT interfaces via 4 wire RJ45 jacks.
  • Up to 24 simultaneous PSTN calls
  • Available in PCI and PCI Express in 2U form factor
  • One colour coded S/T module servers as both TE or NT
  • Carrier-Grade hardware Echo Cancellation options
  • Includes on-board diagnostic tool kit
  • Supports most motherboards & servers
  • Linux and Windows Supported
  • Supports Asterisk, FreePBX, proprietary PBX, IVR and more
  • Life time Warranty

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Card Features

PBX Support
  • FreePBX
  • PBXact UC
  • Asterisk
  • FreeSWITCH
  • Etc
Diagnostic Tools
  • SNMP
  • System logs
Server and Motherboard Support
  • Compatible with most commercially available servers and motherboards
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
Operating System Support
  • Windows 2003, Windows XP, Windows Server 2008, Windows Vista, Windows 7
  • Linux (All versions, releases and distributions from 1.0 up)
Wiring Connections
  • One S/T BRI module has two S/T four wire interfaces
  • 2m 8-pin RJ45 port splitter cables included