Related sites:

• asterisk.org

  Open Source Communications Software | Asterisk Official Site

  

• asteriskguru.com

  Asterisk Guru - Tutorials and howto's for the asterisk PBX and voip in general

  

• voipon.co.uk

  Asterisk Hardware, Phone Systems, IP Phones & VoIP Equipment - VoIPon Solutions

  

• atcom.cn

  ATCOM_IP phone,IP PBX,Asterisk Cards,Voip Products Manufacturer

  

• asteriskdocs.org

  Asterisk: The Definitive Guide (3rd edition)

  

• asttecs.com

  IP PBX System | Call Center Dialer & Auto Dialer Software | Business & Offices

  

• raspberry-asterisk.org

  Asterisk for Raspberry Pi