About 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.

Pricing starting from:

US$595,00

  • Free Version
  • Free Trial
  • Subscription

Top 5 alternatives to Asterisk

Key benefits of Asterisk

● Asterisk is an open source framework for building communication applications and consists of hundreds of pre-built components that can be combined together to form solutions such as VoIP gateways, conference bridges, phones systems and voicemail servers.

● The tool offers features such as call recording, call forwarding, call routing, blacklists, call queuing, call waiting, caller ID, calling cards and blind transfer.

● The product can be used to build a complete phone system, to bridge gaps between systems or to extend or enhance an existing system.

● Asterisk is flexible and lets users define the solution that truly fits their requirements and is stable as well as reliable.

● The system supports both classical PBX functionality as well as advanced features that are associated with large, high-end proprietary PBXs and inter-operates both with traditional telephony systems and VoIP systems.

Devices

Business size

S M L

Markets

Australia, Canada, United Kingdom, United States

Supported Languages

English

Pricing starting from:

US$595,00

  • Free Version
  • Free Trial
  • Subscription

Top 5 alternatives to Asterisk

Images

Asterisk Software - Adding phones on Asterisk extensions
Asterisk Software - Call detail records in Asterisk
Asterisk Software - Deploying VoIP services with Asterisk
Asterisk Software - Asterisk supports interactive voice response (IVR)
Asterisk Software - Trunks and extensions in Asterisk
Asterisk Software - Whitelists and Blacklists in Asterisk
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Asterisk Software - Adding phones on Asterisk extensions Asterisk Software - Call detail records in Asterisk Asterisk Software - Deploying VoIP services with Asterisk Asterisk Software - Asterisk supports interactive voice response (IVR) Asterisk Software - Trunks and extensions in Asterisk Asterisk Software - Whitelists and Blacklists in Asterisk

Features

Total features of Asterisk: 29

  • API
  • Auto-Dialer
  • Automatic Call Distribution
  • Call Center Management
  • Call Logging
  • Call Monitoring
  • Call Recording
  • Call Reporting
  • Call Routing
  • Call Transfer
  • Caller ID
  • Communication Management
  • Computer Telephony Integration
  • Contact Management
  • Employee Directory
  • IVR / Voice Recognition
  • Knowledge Base Management
  • Mobile Access
  • Multiple Parties
  • Predictive Dialer
  • Reporting/Analytics
  • SMS Messaging
  • Telemarketing Management
  • Text to Speech
  • Video Conferencing
  • Virtual Call Center
  • VoIP
  • VoIP Connection
  • Voice Mail

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CloudTalk

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Natterbox

4,1
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3CX

4,5
#3 Alternative to Asterisk
3CX is a full-featured phone system – call queues, built-in video calls, web conferencing. Integrate website live chat,...

BeInContact

4,3
#4 Alternative to Asterisk
BeInContact helps companies of various sectors and sizes increase the loyalty of their customers, improving their...

Reviews

Overall rating

4,4 /5
(37)
Value for Money
4,8/5
Features
4,6/5
Ease of Use
3,6/5
Customer Support
3,6/5

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Showing 5 reviews of 37
Adolfo M.
Overall rating
  • Industry: Government Administration
  • Company size: 10 000+ Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support
  • Likelihood to recommend 9.0 /10

Asterisk as a telephony platform between branches of the institution and in applications

Reviewed on 2021/07/15

Our experience using Asterisk has been very good since it has allowed us to interconnect the...

Our experience using Asterisk has been very good since it has allowed us to interconnect the institution's branches via VoIP and it has also been possible to scale without problems. In addition to integrating with applications towards the end user

Pros

Asterisk is a flexible VoIP platform that allows interaction with telephone systems within the institution nationwide, also allows integration with specific business applications

Cons

The implementation can be a bit complicated because the server cards and the services of the telephony provider have to be compatible.

Wobe muki marguerite N.
Overall rating
  • Industry: Education Management
  • Company size: 11-50 Employees
  • Used Daily for 1+ year
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support
  • Likelihood to recommend 9.0 /10

Phone system, simple and the best!!!

Reviewed on 2019/11/22

An amazing free platform! In my industry, we use it everyday and it eases our day-to-day communicati...

An amazing free platform! In my industry, we use it everyday and it eases our day-to-day communications. Asterisk, you are unique!!!!

Pros

Asterisk is a real time voice and video application, the following points made me recommend it to my industry.
-It is a free software!!! so amazing with the great solutions it provides
-It is easy to setup and user friendly. Working as the Network and systems administrator in my industry (education), I discovered asterisk and amazingly I needed not a sophisticated machine to run it and it worked well on VM. Very easy to set up and the user interface is as friendly as I was able to navigate with ease.
-Asterisk is stable, reliable and SIP configurations are perfect and so adaptable. In my industry (education)we use it for conference calls and employees answer calls on Asterisk.
-Presently, I am including students in the system such that while on campus they can benefit from free phone calls while on campus. Asterisk is really amazing!!!

Cons

-One needs to be dedicated to make it work

Emil H.
Overall rating
  • Industry: Financial Services
  • Company size: 11-50 Employees
  • Used Daily for 1+ year
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support
  • Likelihood to recommend 6.0 /10

Good open source VOIP solution

Reviewed on 2017/04/20

If you want a good and free open source VOIP solution that you can manage in house, then Asterisk...

If you want a good and free open source VOIP solution that you can manage in house, then Asterisk is a good choice. It can be easily installed (not upgraded however) and managed by IT system administrators. Is logic (queues, SIP opening and context for calling) is something that you will figure out quite quickly. You can even use multiple WAN ports and multiple SIP trunk operators with the same server so this is also an advantage. The biggest disadvantage is that if a new version comes out it is easier to do the fresh installation then rater to go and try to make an upgrade. Overall, as an open source system it is a great value for money.

William F.
Overall rating
  • Industry: Computer & Network Security
  • Company size: 2-10 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support
  • Likelihood to recommend 10.0 /10

Small Business Phone System

Reviewed on 2018/08/20

We use this everyday for our phones. We test a variety of platforms on a regular basis, but we have...

We use this everyday for our phones. We test a variety of platforms on a regular basis, but we have always stuck with Asterisk because it does everything we need.

Pros

Asterisk has nearly everything you would need in a phone system for a small business. With some technical knowledge you can get the free version of this and do everything yourself with very minor costs to your bottom line.

Cons

The learning curve on Asterisk systems is steep. If you want to do anything custom, you will pretty much have to hire someone to do it for you unless you have a lot of experience and technical knowledge. Much of this can be overcome by using a GUI such as FreePBX.

Ali osman A.
Overall rating
  • Industry: Maritime
  • Company size: 2-10 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 9.0 /10

Fortget analog and digital PBXs, it is IPPBX

Reviewed on 2021/04/02

I am very happy with the Asterisk. It has been years and working very stable. It does not need to...

I am very happy with the Asterisk. It has been years and working very stable. It does not need to be updated frequently. It is working...

Pros

First of all it's free and open source. You can customize anything as you wish. It is flexible. The best PBX solution for small offices with multi locations, different dial rules, etc... All of my colleagues started working from home on the first day of pandemic.

Cons

Documentation is not good enough. When you have some problem it is hard to find the solution. If you do not secure the server, huge phone traffic can pass through your server.

Showing 5 reviews of 37 Read all reviews

Asterisk FAQs

Below are some frequently asked questions for Asterisk.

Asterisk offers the following pricing plans:

  • Starting from: US$595,00
  • Pricing model: Free Version
  • Free Trial: Available

Pricing for Asterisk Support Services: Single System (Level 1) – $595 per year Single System (Level 2) – $1,995 per year Multi-System (Level 3) – $3,995 per year Multi-System (Level 4) - $7,995 per year

Asterisk has the following typical customers:

2-10, 11-50, 51-200, 201-500, 501-1 000, 1 001+

Asterisk supports the following languages:

English

Asterisk supports the following devices:

Android (Mobile), iPhone (Mobile), iPad (Mobile)

We do not have any information about what integrations Asterisk has

Asterisk offers the following support options:

Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support, 24/7 (Live rep), Chat

Related categories

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