Whitepapers Library

• Asterisk OSP
• VoIP Telephony
  • Strategies for successful IP
  • The Five Considerations
  • Increasing business
• VoIP networking
• Asterisk Open Source
• Life on the Edge
• Open Source Telephony
• Risks and Rewards
• Asterisk Billing
  • Pre paid ANI
  • Post paid ANI
  • Calling Card
  • Call Shop
  • Web Callback
  • SMS Callback
  • DID forwarding
  • Web Voicemail
  • Automatic Routing
  • Automatic Telephone
• Approach to VoIP Security
• Secure, Multi-lateral Peering
• Security, Wiretapping
• Cisco, Anual Security Report
• Compare Top PBX Vendors
• Hosted PBX Comparison
• SIP
  • What´s SIP got to do with it?
  • SIP Security
  • SIP Security and Session
• SER Getting Started
  • Part 1
  • Part 2
  • Part 3
  • Part 4
• Telecom Security Threats
• VoIP Security
• What Is a Call Center?
• VoIP Bandwidth Calculation
• The Value of Open Source
• Enhancing VoIP

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Asterisk Open Source PBX

Introduction

Asterisk is a fully Open Source, hybrid TDM and packet voice PBX and IVR platform.

Asterisk is and has been Open Source under GNU GPL (with an exception permitted for linking with the OpenH323 project, in order to provide H.323 support). Commercial licensing is available from Linux Support Services, Inc. (http://www.linux-support.net) for applications in which the GPL is inappropriate.

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