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SIP RFC

  • RFC 3261  -  SIP: Session Initiation Protocol
  • RFC 2327  -  Session Description Protocol
  • RFC 2617  -  HTTP Digest Authentication
  • RFC 2976  -  SIP INFO Method
  • RFC 3262  -  Reliability of Provisional Responses in the Session Initiation Protocol (SIP)
  • RFC 3264  -  An Offer/Answer Model with the Session Description Protocol (SDP)
  • RFC 3323  -  A Privacy Mechanism for the Session Initiation Protocol (SIP)
  • RFC 3325  -  Private Extensions to the Session Initiation Protocol (SIP) for Network Asserted Identity within Trusted Network
  • RFC 3326  -  The Reason Header Field for the Session Initiation Protocol (SIP)
  • RFC 3515  -  REFER Method
  • RFC 3551  -  RTP/AVP
  • RFC 3581  -  An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing
  • RFC 3892  -  Referred-By Mechanism
  • RFC 3891  -  “Replaces” Header
  • RFC 3966  -  The tel URI for Telephone Numbers
  • RFC 4028  -  Session Timers in the Session Initiation Protocol (SIP)
  • RFC 4566  -  Session Description Protocol (SDP)

 

  • SDP Bypass
  • SBC exports all SS7 parameters via SIP custom X headers.

Call Routing

Configurable and extendable XML-based dial plan and routing rules XML Dialplan can be used to create complex routing scenarios between SIP and TDM.

  • Call routing based on any call parameter present in a SIP message.
  • Ability to use external applications to build complex routing logic*

Media Processing & Transcoding

Wide range of codecs supported for any to any codec negotiation.

  • G.711
  • G.723.1
  • G.726
  • iLBC
  • G.729AB
  • GSM
  • G.722
  • AMR
  • G.722.1
  • OPUS *
  • H263 *
  • H264 *

*  in software transcoding mode only (H263 & H264 passthrough only)

Echo Cancellation & VQE

Telcogradehardware based echo canceling and Voice processing

  • G.168-2002 with 128ms tail
  • Noise cancellation
  • DTMF Removal
  • DTMF Detection
  • FAX Detection
  • Automatic Gain Control

DTMF Detection and Generation

Sangoma SBC  supports multiple DTMF internetworking scenarios.

  • RFC 2833 Tone Relay
  • In-band
  • SIP INFO
  • Hardware and software DTMF detection and generation

Management and Configuration

Sangoma SBC configuration, operation and troubleshooting are designed to be flexible. 

  • Web GUI
  • On the fly configuration without service interruption.
  • Command line interface via sshandusbtoserial
  • Call detail records in XML format
  • Detailed logs with user configurable file size and auto rotation

 

Monitoring

  • SNMP v1, 2, 3
  • RTCP

Accounting

  • Radius

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