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Allo VoIP-ISDN BRI Gateway

Allo VoIP-ISDN BRI Gateway

Allo VoIP-ISDN BRI Gateway - 4x ISDN BRI ports

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$860.31 tax incl.
$711.00 tax excl.

Allo VoIP-ISDN BRI Gateway


Key Features

  • 4 Port ISDN BRI with programmable NT/TE modes
  • Flexible Call Routing
  • Voice coding G.711 A-law/u-law, GSM, SPEEX, G.729AB*
  • Fax Pass-through
  • Echo Cancellation

Additional Features

  • Up to 8 simultaneous VoIP to ISDN BRI Calls
  • Support SIP v2 (RFC 3261 complaint)
  • Register with multiple SIP service providers
  • ISDN network clock synchronization for error-free communication
  • Interoperable with all the major-brand soft switches and IP-PBXs
  • PIN authentication for accessing Trunks to prevent unauthorized usage
  • Call detail records
  • Web-based configuration and management

Technical Specification


  • Capable of supporting 4 ports of BRI interface
  • Switch Variant: ETSI- Euro ISDN BRI
  • Interface: S/T Interface, Point to Point and Point to Multipoint
  • Configurable as network side or terminal side.
  • Support SIP v2 (SIP Info, Update, PRACK, Refer)
  • B2BUA
  • SIP Registrar
Support following Voice Codecs
  • G.711 PCM A-law @ 64 kbps
  • G.711 PCM U-law @ 64 kbps
  • GSM
  • G.729AB (With Additional DSP)
DTMF Support In-band, DTMF relay (RFC 2833) Out-of-Band, INFO method (RFC 2976)
Echo Cancellation Up to 128msec echo tail length
Fax Fax pass-through
  • Call routing
    • Flexible dial plan & Number manipulation
    • Time-dependent routing
    • Multilevel alternative routing (Intelligent multiple trunk routings)
    • Least Cost Routing (LCR)
  • Support for calls to Toll Free, local and special service numbers (emergency services, etc.)
  • Early Media Support
  • STUN support
  • Call Detail Records (CDRs)
  • WEB based configuration utility
  • Remote firmware upgrade
  • Built-in diagnostic tools (trace, debug)
  • DHCP Client
  • DNS
  • SNTP Client
  • HTTP web server
  • NAT Traversal (both manually and STUN)
  • IP Router
    • IP Routing
    • DHCP Server
    • Firewall