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Asterisk
5
26
4
14
3
3
2
1
1
0
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source modular communication system
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Asterisk - 2026 Pricing, Features, Reviews & Alternatives
All user reviews are verified by in-house moderators and provider data by our software research team. Learn more
Last updated: March 2026
Asterisk overview
What is Asterisk?
Asterisk by Digium is an open source communications tool that provides voice and video communication solutions for small, mid-size and large organizations across the globe. The software is freely available and can connect seamlessly with legacy communication systems and VoIP. Asterisk includes many pre-built components that have the capability to handle simple as well as complex voice, video and text communications.
Asterisk telephony solutions provide both classical PBX functionality as well as advanced features including call recording, call routing, call snooping, call waiting, caller ID blocking, blacklists, authentication and conference bridging. Other features offered by Asterisk include SMS messaging, trunking, transcoding, text-to-speech conversion, interactive voice response, flexible extension logic and overhead paging. The software is scalable, allows for the integration of physically separate installations and supports a unified dialplan across offices located in multiple locations. The tool follows both VoIP protocols such as UNIStim, Google Talk, IAX, Jingle/XMPP, SIP, MGCP, and SCCP as well as traditional telephony protocols such as FXS, FXO, Loopstart, Kewlstart, E&M, and others.
Asterisk has a modular design and includes several different components that can be combined to build unified communication solutions including VoIP gateways, phone systems, voicemail servers, conference bridges and IVR servers. Over 1,000 companies in 170 countries use Digium’s phone systems including Yahoo, University of Pennsylvania, Google, U.S. Army, eBay and many of the Fortune 1000 companies.
Starting price
Alternatives
with better value for money
Pros & Cons
Pricing
Customer Support
Integrations
Security and Access Control
User Interface
Asterisk’s user interface
Asterisk pros, cons and reviews insights
To determine these pros and cons insights, we analyzed responses from
Overall rating
Value for money
4.8
Features
4.6
Ease of use
3.5
Customer support
3.4
Reviews sentiment
What do users say about Asterisk?
We have around 300 phones deployed with Asterisk / FreePBX and when comparing the costs against industry leading phone solutions we are saving tens of thousands of pounds per year.
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Who uses Asterisk?
Based on 44 verified user reviews.
Company size
Small Businesses
Midsize Businesses
Enterprises
Top industries
Use cases
Asterisk's key features
Most critical features, based on insights from Asterisk users:
All Asterisk features
Features rating:
Asterisk alternatives
Asterisk
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595
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Starting from
29
/user
Per month
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1.1
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Nextiva
Starting from
25
/user
Per month
Asterisk pricing
Value for money rating:
Starting from
595
User opinions about Asterisk price and value
Value for money rating:
To see what individual users think of Asterisk's price and value, check out the review snippets below.
Nathan T.
Network Infrastructure Manager
Tim M.
IT consultant
Asterisk integrations (3)
Integrations rated by users
We looked at 44 user reviews to identify which products are mentioned as Asterisk integrations and how users feel about them.
Integration rating: 4.0 (1)
Integration rating: 4.0 (1)
Integration rating: 5.0 (1)
Other top integrations
Asterisk support options
Typical customers
Platforms supported
Support options
Training options