It is an open source command-line software, a server that offers all the flexibility needed by developers and integrators to create advanced communication solutions for free. It can also be used as a gateway, a feature/media server or a call center.
Features at a glance
Key features include an IVR (Interactive Voice Response) system, a conference bridge, all the building blocks required to create a PBX (Private Branch Exchange) server, and virtually any other communication tools you can imagine.
Asterisk can be used as a switch (PBX), configured as the core of a hybrid PBX or an IP, for switching calls, enabling various functions, connecting callers, and managing routes with the outside world over IP, digital (T1/E1) or analog (POTS) connections.
Getting started with Asterisk
Installing Asterisk on a GNU/Linux system proves to be an easy task, as all you have to do after downloading and unpacking the latest version of the software (see download link above), you must execute the ‘./configure && make’ command in a terminal emulator, of course after navigating to the location of the extracted archive files (e.g. cd /home/softpedia/asterisk-13.0.1).
After a successful compilation process, a message will notify you that Asterisk can be installed on your system by running the ‘make install’ command as root or the ‘sudo make install’ command as a privileged user. That’s it, you can now use Asterisk and also install one of the front-ends available on Softpedia.
Supported operating systems
Asterisk is a multi-platform software, which means that it supports and runs on a wide range of Linux and UNIX-like operating systems, including GNU/Linux, FreeBSD, OpenBSD, Solaris and Mac OS X. It can be successfully installed on 64-bit and 32-bit hardware platforms.
Reviewed by Marius Nestor, last updated on December 4th, 2014
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- AST-2014-012: Fix error with mixed address family ACLs. Prior to this commit, the address family of the first item in an ACL was used to compare all incoming traffic. This could lead to traffic of other IP address families bypassing ACLs.
- AST-2014-013: Fix PJSIP ACLs not loading on startup and apply/ACL issues on contact The biggest problem this patch fixes is that ACLs weren't previously being loaded when the res_pjsip_acl module was loaded. In addition, the ACL options contact_permit and contact_acl were effectively interpreted as contact_deny and this patch fixes that as well.
- AST-2014-015: Fix race condition in chan_pjsip when sending responses after a CANCEL has been received. Due to the serialized architecture of chan_pjsip there exists a race condition where a CANCEL may be received and processed before responses (such as 180 Ringing, 183 Session Progress, and 200 OK) are sent. Since the session is in an unexpected state PJSIP will assert when this is attempted. This change makes it so that these responses are not sent on disconnected sessions.
- AST-2014-016: Fix crash when receiving an in-dialog INVITE with Replaces in res_pjsip_refer. The implementation of INVITE with Replaces in res_pjsip_refer did not expect them to occur in-dialog. As a result it would incorrectly attempt to hang up a channel it thought was under its control. In reality the channel would be under the control of another thread. When the other thread accessed the channel it would be accessing freed memory and could crash. This change makes res_pjsip_refer not act on an in-dialog INVITE with Replaces.
Application descriptionAsterisk is an open source, free a command-line software that has been designed from the ground up to act as a powerfu...