{"id":9569,"date":"2026-05-09T09:12:34","date_gmt":"2026-05-09T01:12:34","guid":{"rendered":"http:\/\/www.freesip.org\/?page_id=9569"},"modified":"2026-05-10T07:33:24","modified_gmt":"2026-05-09T23:33:24","slug":"asterisk","status":"publish","type":"page","link":"https:\/\/www.freesip.org\/?page_id=9569","title":{"rendered":"Asterisk"},"content":{"rendered":"\n<pre class=\"wp-block-preformatted has-medium-font-size\"><strong>What is Asterisk<\/strong><br>Asterisk is an open-source telephony engine and toolkit that enables the creation of communication applications. It functions primarily as a Private Branch Exchange (PBX) but can be adapted for many telephony scenarios including VoIP gateways, conference servers, call centers, and voicemail systems.<br><br>At its core, Asterisk provides:<br><br><strong>Channel abstraction<\/strong>: Unified interface for multiple telephony protocols and hardware.<br><strong>Dialplan execution<\/strong>: Programmable call routing and logic via the PBX engine.<br><strong>Media bridging<\/strong>: Connecting and mixing audio\/video streams between channels.<br><strong>Application framework<\/strong>: Extensible set of call handling applications.<br><strong>Management interfaces<\/strong>: Control and monitoring via AMI, ARI, and CLI.<\/pre>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Details<\/summary>\n<pre class=\"wp-block-preformatted has-medium-font-size\">It conains core components, architectural layers, and how they interact to provide PBX functionality. For detailed information about specific subsystems, refer to the following areas: <br><br><strong>Getting Started<\/strong><br> <br><strong>Core Architecture<\/strong><br> <br><strong>Signaling Protocols<\/strong><br> <br><strong>Media and RTP<\/strong><br> <br><strong>Applications and Features<\/strong><br> <br>M<strong>anagement and Control Interfaces and Network Infrastructure<\/strong><\/pre>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>What is AsteriskAsterisk is an open-source telephony engine and toolkit that enables the creation of communication applications. It functions primarily as a Private Branch Exchange (PBX) but can be adapted for many telephony scenarios including VoIP gateways, conference servers, call centers, and voicemail systems.At its core, Asterisk provides:Channel abstraction: Unified interface for multiple telephony protocols [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9569","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.freesip.org\/index.php?rest_route=\/wp\/v2\/pages\/9569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freesip.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.freesip.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.freesip.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freesip.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9569"}],"version-history":[{"count":9,"href":"https:\/\/www.freesip.org\/index.php?rest_route=\/wp\/v2\/pages\/9569\/revisions"}],"predecessor-version":[{"id":9664,"href":"https:\/\/www.freesip.org\/index.php?rest_route=\/wp\/v2\/pages\/9569\/revisions\/9664"}],"wp:attachment":[{"href":"https:\/\/www.freesip.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}