GNU Gatekeeper

The GNU Gatekeeper (abbreviated as GnuGk) is an open-sourced project that implements an H.323 Gatekeeper based on the OpenH323 or H323Plus stack. A gatekeeper provides address translation, admissions control, call routing, authorization and accounting services to an H.323 system defined on the H.323 standard by ITU-T.

Features

GnuGk contains a rich set of features, including:

  • Cross-platform, including Linux, Windows, OS X, Solaris, FreeBSD, OpenBSD and NetBSD
  • A policy-based flexible routing mechanism
  • Calling and called numbers rewriting, including CLI rewriting
  • Full H.323 proxy, including Real-time Transport Protocol (RTP) and RTP Control Protocol (RTCP) media channels, and T.120 data channels
  • NAT traversal using a number of protocols, including H.460.17, H.460.18 and H.460.19
  • IPv6 support (incl. IPv4-IPv6 proxying)
  • LDAP directory support (H.350)
  • Call retry-failover
  • Clustering support by neighbors, parent-child, alternates GK
  • Transmission Control Protocol (TCP) status port for monitoring and external call routing
  • Podcasts:

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