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the FreePBX interface, you can configure and manage many aspects of an
Asterisk system without touching a single configuration file. While we purists may like everyone to work only with the config files, we recognize that for many, learning Linux and editing these files by hand is simply not going to happen. For those folks, there is FreePBX, and it has our respect for the important contributions it has made to the success of Asterisk.
38:
444:
PBX worldwide. It allows having multiple sets of voice prompts identified by language (and even multiple sets of prompts for each language) as well as support for time formats in different languages. Several sets of prompts for the interactive voice response and voice mail features are included with
974:
FreePBX, the juggernaut of the
Asterisk community. This interface (which is at the heart of many of the most popular Asterisk distributions, such as AsteriskNOW, Elastix, the FreePBX Distro, and PBX in a Flash), is unarguably a very large part of why Asterisk has been as successful as it has. With
408:
By supporting a variety of traditional and VoIP telephony services, Asterisk allows deployers to build telephone systems, or migrate existing systems to new technologies. Some sites are using
Asterisk to replace proprietary PBXes, others provide additional features, such as voice mail or voice
542:
The standard voice prompts included with the system are free. A business can purchase matching voice announcements of its company name, IVR menu options and employee or department names (as a library of live recordings of common names or a set of fully customised prompts recorded by the same
404:
of calls between
Asterisk PBX systems in addition to distributing some configuration logic. Many VoIP service providers support it for call completion into the PSTN, often because they themselves have deployed Asterisk or offer it as a hosted application. Some telephones also support the IAX
881:, parody on-hold message where a pre-recorded Allison Smith sheepishly confesses (at 0:00:45) that the caller is actually *not* next in queue and would be lucky to get a response at 11:30pm from the cleaning lady after other workers had left for the day.
812:
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Asterisk is a core component in many commercial products and open-source projects. Some of the commercial products are hardware and software bundles, for which the manufacturer supports and releases the software with an open-source distribution model.
445:
Asterisk: American, British, and
Australian English, Canadian French, Japanese, Russian, Mexican Spanish and Swedish. A few novelty prompts are offered, such as jokes and a themed "zombie apocalypse" message for
808:
The README for version 0.1.0 states: "Currently, the
Asterisk Open Source PBX is only known to run on the Linux OS, although it may be portable to other UNIX-like operating systems as well." See
809:
424:. This requires appropriate hardware interface cards, marketed by third-party vendors. Each protocol requires the installation of software modules. In Asterisk release 14 the
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874:
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software which uses
Asterisk for telephony functions. It was forked from the open-source versions of Elastix when 3CX acquired it.
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1136:
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396:. It can serve as a gateway between IP phones and the PSTN via T- or E-carrier interfaces or analog FXO cards. The
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The default set of
English-language Asterisk prompts are recorded by professional telephone voice Allison Smith.
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Various add-on products, often commercial, are available that extend
Asterisk features and capabilities.
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bundles
Asterisk to provide telephony; there is also an embedded version of Asterisk for OpenWrt routers.
381:
348:
61:
449:. Additionally, voice sets are offered for commercial sale in various languages, dialects, and genders.
365:(AGI) programs using any programming language capable of communicating via the standard streams system (
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and new features. Some third-party add-ons are free; a few even support embedded platforms such as the
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20:
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The Asterisk software includes many features available in commercial and proprietary PBX systems:
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In addition to VoIP protocols, Asterisk supports traditional circuit-switching protocols such as
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351:. Users can create new functionality by writing dial plan scripts in several of Asterisk's own
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to offer PBX, fax, instant messaging and email functions, respectively, before switching to
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8:
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professional voice talent) at additional cost for seamless integration into the system.
252:
hardware interfaces and network applications, Asterisk is used to establish and control
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AstLinux is a "Network Appliance for Communications" open-source software distribution.
24:
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413:, or to reduce cost by carrying both local and long-distance calls over the Internet.
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481:, an open-source graphical user interface, bundles Asterisk as the core of its
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1075:"The 5-Minute PBX: Incredible PBX 11 and Incredible Fax Get a Facelift"
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project, uses Asterisk PBX software to realize all telephony functions.
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336:
155:
45:
392:. Asterisk supports most SIP telephones, acting both as registrar and
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400:(IAX) protocol, RFC 5456, native to Asterisk, provides efficient
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Other add-ons provide fax support, text-to-speech, additional
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languages by adding custom loadable modules written in PHP or
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956:
Madsen, Leif; Jim Van Meggelen; Russell Bryant (2013).
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781:
Van Meggelen, Jim; Smith, Jared; Madsen, Leif (2007).
561:
323:, and can be installed in embedded systems based on
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694:
673:
652:
631:
1113:
747:
1157:Lua (programming language)-scriptable software
605:List of free and open-source software packages
535:uses Asterisk in its VoIP and mobile gateways.
207:with additional licenses available from Digium
962:(4th ed.). O'Reilly Media. p. 800.
748:Olejniczak, Stephen P.; Kirby, Brady (2007).
291:, which, since 2018, has been a division of
959:Asterisk: The Definitive Guide, 4th Edition
1104:
226:
165:
36:
860:download page of sound files for Asterisk
272:(VoIP) networks. Its name comes from the
1047:
431:
1114:
1050:"35 Great free Asterisk applications"
872:"You are not the next caller in line"
497:are software PBXes based on Asterisk.
1026:. Digium. 2015-12-29. Archived from
849:AstLinux: Boot via USB Flash Storage
572:Free and open-source software portal
248:(PBX). In conjunction with suitable
455:
376:Asterisk supports several standard
13:
493:PBX in a Flash/Incredible PBX and
268:(PSTN) and devices or services on
14:
1173:
1091:
1052:. Venturevoip.com. Archived from
783:Asterisk: The Future of Telephony
436:While initially developed in the
266:public switched telephone network
114:18.20.0 LTS (18 October 2023
892:"Zombie-Proof Your Phone System"
564:
440:, Asterisk has become a popular
299:, Asterisk runs on a variety of
293:Sangoma Technologies Corporation
283:Asterisk was created in 1999 by
276:(*) symbol for a signal used in
87:20.5.0 LTS (18 October 2023
51:Sangoma Technologies Corporation
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1041:
1016:
998:
980:
949:
938:
909:
894:. Go.digium.com. Archived from
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864:
853:
842:
821:
802:
774:
741:
715:
386:Media Gateway Control Protocol
1:
1137:Free software programmed in C
988:"astTECS - THE IP-PBX PEOPLE"
625:
373:) or by network TCP sockets.
1147:Telephone exchange equipment
1048:Riddell, Matt (2009-08-08).
270:voice over Internet Protocol
260:endpoints such as customary
193:Voice over Internet Protocol
7:
1142:Free communication software
1024:"Asterisk Software Add-Ons"
917:"Asterisk Voice Recordings"
580:Comparison of VoIP software
557:
409:response menus, or virtual
382:Session Initiation Protocol
349:automatic call distribution
330:
10:
1178:
1077:. Nerd Vittles. 2013-06-18
503:previously used Asterisk,
362:Asterisk Gateway Interface
345:interactive voice response
295:. Originally designed for
264:sets, destinations on the
18:
380:protocols, including the
278:dual-tone multi-frequency
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129:
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60:
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44:
35:
21:Asterisk (disambiguation)
100:19.8.1 (7 July 2023
73:21.3.1 (17 May 2024
398:Inter-Asterisk eXchange
394:back-to-back user agent
246:private branch exchange
116:; 11 months ago
102:; 14 months ago
89:; 11 months ago
1132:Free business software
702:"ChangeLog-18-current"
681:"ChangeLog-19-current"
660:"ChangeLog-20-current"
639:"ChangeLog-21-current"
527:Unified Communications
75:; 4 months ago
829:"Asterisk on OpenWrt"
758:John Wiley & Sons
1010:AsteriskExchange.com
945:astlinux-project.org
787:O'Reilly Media, Inc.
752:Asterisk For Dummies
610:List of SIP software
432:Internationalization
244:implementation of a
19:For other uses, see
1006:"Allison On Demand"
359:or by implementing
347:(phone menus), and
32:
1127:Free VoIP software
877:2016-03-04 at the
815:2017-02-12 at the
723:"Asterisk LICENSE"
620:SIP Express Router
525:is an open-source
341:conference calling
131:Preview release(s)
30:
25:* (disambiguation)
969:978-1-4493-3242-6
301:operating systems
258:telecommunication
235:
234:
62:Stable release(s)
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1108:
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1100:Official website
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923:. Archived from
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595:GateKeeper H.323
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468:, a fork of the
456:Derived products
426:Opus audio codec
280:(DTMF) dialing.
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994:. 12 July 2008.
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879:Wayback Machine
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590:FreeSWITCH IPBX
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254:telephone calls
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1152:Videotelephony
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1092:External links
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483:FreePBX Distro
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428:is supported.
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1056:on 2015-04-26
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1030:on 2015-03-16
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927:on 2015-01-18
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921:The IVR Voice
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898:on 2016-03-05
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831:. 6 June 2018
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600:GNU SIP Witch
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1079:. Retrieved
1069:
1058:. Retrieved
1054:the original
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1032:. Retrieved
1028:the original
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929:. Retrieved
925:the original
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900:. Retrieved
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833:. Retrieved
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743:
732:. Retrieved
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705:. Retrieved
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684:. Retrieved
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663:. Retrieved
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642:. Retrieved
633:
552:Raspberry Pi
545:
541:
538:
459:
451:
435:
415:
407:
388:(MGCP), and
375:
360:
352:
334:
303:, including
285:Mark Spencer
282:
237:
236:
86:
46:Developer(s)
16:PBX software
384:(SIP), the
135:[±]
66:[±]
1116:Categories
1081:2016-01-04
1060:2016-01-04
1034:2016-01-04
931:2015-01-17
902:2016-01-04
835:2018-06-10
734:2020-02-13
626:References
466:AskoziaPBX
411:call shops
405:protocol.
353:extensions
337:voice mail
177:Written in
147:Repository
121:2023-10-18
107:2023-07-07
94:2023-10-18
80:2024-05-17
992:VoIP-Info
447:Halloween
262:telephone
250:telephony
219:.asterisk
162:/asterisk
160:/asterisk
875:Archived
813:Archived
558:See also
533:*astTECS
509:Openfire
488:LinuxMCE
470:m0n0wall
402:trunking
331:Features
274:asterisk
256:between
242:software
238:Asterisk
31:Asterisk
615:OpenBTS
523:Issabel
513:Postfix
505:HylaFAX
501:Elastix
495:trixbox
479:FreePBX
325:OpenWrt
321:Solaris
313:FreeBSD
309:OpenBSD
212:Website
200:License
119: (
105: (
92: (
78: (
966:
792:
764:
728:GitHub
707:27 Oct
686:27 Oct
665:27 Oct
644:22 May
548:codecs
371:stdout
319:, and
305:NetBSD
289:Digium
224:
156:github
585:DUNDi
390:H.323
367:stdin
317:macOS
297:Linux
240:is a
205:GPLv2
964:ISBN
810:here
790:ISBN
762:ISBN
709:2023
688:2023
667:2023
646:2024
511:and
442:VoIP
420:and
418:ISDN
378:VOIP
369:and
221:.org
188:Type
158:.com
23:and
517:3CX
422:SS7
287:of
217:www
1118::
1008:.
990:.
972:.
919:.
870:ץ
785:.
760:.
756:.
725:.
554:.
507:,
343:,
339:,
327:.
315:,
311:,
307:,
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1063:.
1037:.
1012:.
934:.
905:.
838:.
798:.
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737:.
711:.
690:.
669:.
648:.
519:.
357:C
181:C
125:)
123:)
111:)
109:)
98:)
96:)
84:)
82:)
27:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
