Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Asterisk (software)

Asterisk is a software implementation of a private branch exchange (PBX). In conjunction with suitable telephony hardware interfaces and network applications, Asterisk is used to establish and control telephone calls between telecommunication endpoints such as customary telephone sets, destinations on the public switched telephone network (PSTN) and…

Companies & Products

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Asterisk (software). Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developer
Sangoma Technologies Corporation
License
GPLv2 with additional licenses available from Digium
Repository
github.com/asterisk/asterisk
Type
Voice over Internet Protocol
Written in
C

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Features

Internationalization

Derived products

Security

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Asterisk (software)

Nodes79
Edges78
Triples11
Avg. degree1.97
Density0.025316
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Asterisk (software)

Top relations

Developer · 1
Asterisk (software) → Sangoma Technologies Corporation
License · 1
Asterisk (software) → GPLv2 with additional licenses available from Digium
Repository · 1
Asterisk (software) → github.com/asterisk/asterisk
Type · 1
Asterisk (software) → Voice over Internet Protocol
Website · 1
Asterisk (software) → www.asterisk.org
Written in · 1
Asterisk (software) → C

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

asterisk voice voip software pbx open-source protocol features telephony prompts systems products also commercial interface support hardware sets used digium

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Asterisk (software)DeveloperSangoma Technologies Corporation1.00infobox
Asterisk (software)LicenseGPLv2 with additional licenses available from Digium1.00infobox
Asterisk (software)Repositorygithub.com/asterisk/asterisk1.00infobox
Asterisk (software)TypeVoice over Internet Protocol1.00infobox
Asterisk (software)Websitewww.asterisk.org1.00infobox
Asterisk (software)Written inC1.00infobox
customary telephone setsinstance ofAsterisk is used to establish and control telephone calls between telecommunication endpoints0.80text
destinations on the public switched telephone networkinstance ofAsterisk is used to establish and control telephone calls between telecommunication endpoints0.80text
ISDNinstance ofAsterisk supports traditional circuit-switching protocols0.80text
SS7instance ofAsterisk supports traditional circuit-switching protocols0.80text
the Raspberry Piinstance ofa few even support embedded platforms0.80text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.