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asterisk.org Telecommunications Open Source VoIP PBX Software Development

Home ⋆ Asterisk

Ready to Get Started with Asterisk? Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.

Asterisk is a free and open-source framework for building communications applications. It is used by small businesses, large businesses, call centers, carriers, and governments worldwide. Asterisk powers IP PBX systems, VoIP gateways, conference servers, and other custom solutions. It is highly flexible and can be integrated with a wide range of telephony hardware and software.

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135K

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Total Views

150K

5000 / day

Visit Duration, avg.

5.5 min

3.2 pages per visit

Bounce Rate

40%

  • Domain Rating

  • Domain Authority

  • Citation Level

Founded in

1999

Supported Languages

English, etc

Website Key Features

VoIP

Supports Voice over Internet Protocol, allowing voice communications to be transmitted over the internet.

PBX

Functions as a Private Branch Exchange, enabling internal and external telephone communication within an organization.

Conference Bridging

Allows multiple parties to participate in a single call, facilitating conference calls.

Call Recording

Enables the recording of calls for quality assurance, training, or legal compliance.

Interactive Voice Response (IVR)

Automates interactions with telephone callers, providing information and routing calls without human intervention.

Call Queues

Manages incoming calls by placing them in a queue and distributing them to available agents.

Voicemail

Provides voicemail services, allowing callers to leave messages when the recipient is unavailable.

Call Forwarding

Redirects incoming calls to another number, ensuring calls are not missed.

Caller ID

Displays the caller's information to the recipient before the call is answered.

Customizable

Highly customizable to fit the specific needs of any business or application.

Additional information

License

Released under the GNU General Public License (GPL), making it free to use, modify, and distribute.

Community

Has a large and active community of users and developers contributing to its development and support.

Documentation

Comprehensive documentation is available, including user guides, developer guides, and API references.

Integration

Can be integrated with a wide range of telephony hardware and software, including SIP phones, VoIP gateways, and CRM systems.

Security

Offers various security features, including encryption and authentication, to protect communications.

Scalability

Scalable from small deployments to large, enterprise-level systems.

Support

Commercial support and consulting services are available from Digium and other third-party providers.

HTTP headers

Security headers report is a very important part of user data protection. Learn more about http headers for asterisk.org