Astervis Alternatives

Apps similar to Astervis include Asterisk, which is free and open source. Other options are 3CX and FreePBX. In total there are three IP PBX Systems like Astervis for Linux, Mac, Windows, the web and Android.

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Astervis alternatives page was last updated Mar 24, 2026

Asterisk
38 likes
Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server. Asterisk powers IP PBX systems, VoIP gateways, conference servers and other custom solutions.
33 Asterisk alternatives
Cost / License
Free
Open Source (GPL-2.0)
Origin
Canada
Platforms
Mac
Linux
BSD
Cygwin
Oracle Solaris
Canada
Good alternative?Is Asterisk a good alternative to Astervis?
3CX
19 likes
3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box.

Offers a free trial period, after with you need to upgrade to paid subscription.
36 3CX alternatives
Cost / License
Freemium
Proprietary
Application type
Web Conferencing
Origin
Cyprus
EU
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Self-Hosted
Microsoft Exchange
Raspberry Pi
Microsoft 365 (Office)
Cyprus
EU
+2
Good alternative?Is 3CX a good alternative to Astervis?
FreePBX
13 likes
FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server.
27 FreePBX alternatives
Cost / License
Free
Open Source
Application type
IP PBX
Platforms
Linux
Good alternative?Is FreePBX a good alternative to Astervis?

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