VoIP Asterisk Resources

All the leading Asterisk resources for hardware, software, news and advice.

Asterisk is the leading software engine for creating a business IP PBX, VoIP gateway, or other communications system. Asterisk is free and open source, with many official and unofficial Asterisk resources available on the Internet.

VoIP Asterisk Resources Listing


DOW Networks

DOW Networks is a leader in Call Center Solutions, Voice over IP (VoIP) solutions and Toll Free Services to International Call Centers and businesses. Whether you have one business in one country or multiple businesses in various countries with a large call center that operates around the world, DOW Networks has the solution. DOW Networks focuses on call center resources, call center solutions, and call center support along with a number of toll-free services to satisy every customer's needs.


DSLi distinguishes itself through its use of the Voice over Internet
Protocol (VoIP) which allows DSLi to deliver to small business customers
a comprehensive bundle of high quality local and long distance telephony
services, high-speed (T-1) Internet access and Internet-based applications
at very competitive rates. In fact, DSLi customers often find that
they get all these services for about the same price that they were
paying for local and long distance services alone.

DSLi understands the needs of the business class customer and is dedicated
to providing reliable solutions that enhance productivity
and reduce cost. DSLi offers a simple, turnkey, integrated package
of communications services that are feature rich and easy to use with
one bill that is affordable. 


Ecuity Advanced Communications,
Inc. is
a provider of secure
end-to-end communication
technologies for
individual and
small / medium
business markets.
Ecuity develops
secure next-generation
voice services
to meet the communication
needs of today's
competitive business
As a facilities-based
carrier, Ecuity
has operated as
a traditional CLEC
telephone company
for 17 years, providing
service to thousands
of customers across
the country.


We (Enfonicom) are a leading global provider of next-generation VoIP termination to the public switched telephone network (PSTN). Its solutions are uniquely designed for high volume telecom users such as Call Centers, Enterprise users, Teleconferencing Companies and Internet Voice Response (IVR) users. High quality, cost-effective telephony systems are essential for large-scale, global organizations, and Enfonicom worldwide presence, seamless integration and unmatched voice quality enables businesses to significantly reduce telecom costs while increasing productivity. We have close to 15 Carriers connected to our back-end to ensure uptime of our services at close to 99.99% of the time We also have a 24X7 Customer Service and Technical Support based up in United States (Florida).


Providing VOIP to students away from their family and friends, Providing voip to US nationals away from home, Providing an affordable way to communicate with family and friends while out of the US


Euphonex is a fast growing Internet Telephony company founded in 2005
and serves customers in over 150 countries.  We offer inexpensive
alternatives to traditional telephone service around the world.   Our
clients range from individual consumers to small businesses, Hotels,
Call Centers, Cyber Cafes, ISPs, Web Hosting Providers and Telephone
System Integrators.


callEverywhere product line provides hosted IP communications services for residential and small to medium businesses.


Broadband Phone VoIP service provider (IAX, SIP termination)
Exgn Link! is a pre-paid / pay as you go service.
minimum deposit amount is $35 which will be instantly applied to your
account upon payment receipt. There are absolutely no monthly minimum
requirements for our services.


Expatphonehomeâ„¢ is a leading edge technology that will change
the way domestic residents, travellers and expatriates communicate
forever. It allows high speed Internet users to transform their
broadband Internet connection into a phone line. With Expatphonehomeâ„¢, customers typically save 36-66% over traditional phone ervice.
- Reseller of Digital Voice


Fonelogic is currently changing the way we communicate today. We provide our customers the best
Internet Phone Services at a fraction of the cost of traditional telephone service.
Start saving, now!
Our service provides superior voice quality Internet phone service to residential and small to medium
size businesses at an affordable price. We are truly a global communications company connecting you to
the world, for less.


Asterisk is Linux-based software for creating an easily manageable and feature-rich business communication system. Asterisk includes all the drivers, protocol converters, scripts, codecs, and more needed to perform functions that range from routing and call handling to call recording and generating call detail records.

Asterisk VoIP software is open source and free, with many configuration options, features, and modules. An Asterisk VoIP solution is preferred by businesses — small and large — who want a robust and customizable IP PBX system to handle their business telephony traffic.

Who Uses Asterisk VoIP?

Asterisk is a framework for building a communications network, which can include conference servers as well as the basic PBX system Asterisk was originally designed to support. Asterisk uses the most common protocol — session initiated protocol (SIP) — and is built on one of the most stable and advanced operating systems (Linux). This makes Asterisk a reliable and extendable VoIP solution for businesses of all types.

Some of the business and organizations using Asterisk include:

  • Small and medium businesses
  • Carriers (CLECs, ILECs, and wholesalers)
  • ITSPs, ISPs, and VoIP providers
  • Government agencies
  • Large corporations
  • Call centers
  • Call shops
How Can Asterisk Be Used?

Asterisk is powerful, flexible, and stable. Asterisk was named for the * character in Linux, which is a wildcard character. Like its namesake, Asterisk is capable of performing many different functions — singularly or combined. Some of the functionalities of Asterisk VoIP software are:

  • VoIP gateway
  • IP PBX
  • Skype gateway
  • Call center automatic call distributor (ACD)
  • Conference bridge
  • IVR server
  • Voicemail system
  • Fax server
  • Speech server
  • Call recorder
  • Unified messaging

Asterisk resources such as whitepapers, videos, and forums can be found at asterisk.org, where the software can also be downloaded. As an open source platform, additional resources for Asterisk VoIP software — such as tutorials for integration with OpenSIPS or software for reporting — can be found all over the Internet. Looking for Asterisk software, hardware, tips, tutorials, or forums? We can help — check our Asterisk resources directory.

Installing an Asterisk VoIP PBX System

Building an Asterisk VoIP PBX is relatively simple from an installation standpoint, as long as you are familiar with Linux and comfortable using the command line interface (CLI). Binary installations using Yum on CentOS or RedHat makes Asterisk easier to maintain, according to the software's developers. There are many Asterisk resources offering installation instructions, including the Asterisk website as well as numerous unofficial how-tos.

Once the Asterisk software is set up, additional software — a graphical user interface (GUI), or front-end — is needed to interface with the Asterisk VoIP system to manage and configure standard features such as music-on-hold and voicemail. There are a number of Asterisk GUIs available, such as Mini Asterisk or GEOTEK Phonebook. You can find Asterisk GUIs in our Asterisk resources directory below, and a complete list of Asterisk GUIs at VoIP-Info.org.

However, that might not be the most stress-free process for many. Thankfully, there are also many software packages out there called distros that roll up the open source Asterisk VoIP PBX software and the GUI with additional components and an easy-install executable. AsteriskNOW is the distro offered by Asterisk, which does the heavy lifting by installing Linux, Asterisk, and the GUI as an ISO image, simply and easily. Some of the more popular distros for Asterisk VoIP service include:

  • AsteriskNOW
  • Elastix
  • PBX in a Flash
  • Trixbox
  • FreePBX
  • Switchvox

You'll find Asterisk resources like distros for setup, configuring, and customizing the PBX software in our Asterisk resources directory.

Using an Asterisk Appliance

One of the easier ways to install the Asterisk VoIP system is to use an Asterisk appliance. Asterisk appliances are small standalone servers and complete PBX solutions for small and medium businesses (SMBs).

Asterisk appliances come fully loaded with custom compiled Linux configurations, FXO and FXS ports, and a front-end (or GUI) to manage and configure Asterisk's features. Some well-known Asterisk appliances are:

  • Asterisk Appliance
  • Rhino Ceros Appliance
  • WARP Appliance
  • PhoneBochs MiniVoIP Appliance

Some developers of Asterisk distros also produce Asterisk appliances, so you can find a simple, comprehensive solution to Linux and Asterisk installation issues, the need for a dedicated machine, and the need for a GUI to manage the Asterisk software all in one compact package. Digium's Switchvox and AsteriskNOW as well as Trixbox are just a few of the distros that also come preloaded on Asterisk appliances.

You'll find more Asterisk appliances, GUIs, and other software in our VoIP Asterisk resources directory.

Choosing an Asterisk Appliance

When considering an Asterisk appliance, it's best to weigh a few factors carefully before making a final choice. Even though Asterisk is open source, a Digium Asterisk appliance — Switchvox — offers certain advantages in that it's fully supported and will upgrade at pace with Asterisk. Relying on community maintenance for independent Asterisk appliances can be a more complicated and even risky process.

Things to consider when evaluating an independent Asterisk appliance:

  • Upgrades
  • Extendability and portability
  • Installation
  • Compatibility with other programs/interfaces
  • Adequate support
  • Statistical aggregation ('phoning home' with usage data)

You can find these and more Asterisk appliances in our VoIP Asterisk resources directory, as well as links to tips, reference material, and hardware options.

Asterisk Resources: Getting Help

The official Asterisk site offers a forum, instructional videos, documentation and more. However, there are also plenty of other Asterisk resources available as well, including forums and installation help at AsteriskGuru and courses and certifications at Digium.

There are also sites featuring extensive documentation, such as the online O'Reilly guide to Asterisk, and sites with how-to vodcasts. Local Asterisk user groups are another online Asterisk resource, as are sites with news about Asterisk developments, updates, and releases. You can find links to these online Asterisk resources and more in our directory.

Asterisk Software

Because Asterisk is open source software, many companies and independent developers offer modules and add-ons for additional PBX features and functions — especially for industry-specific functions relating to call centers or VoIP providers. For instance, software for call center stats, call recording, autodialers, or conference management, as well as channel drivers, scripts, and other tools are all available through third-party agents.

Information about these and other Asterisk resources can be found in our directory.

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